2,102 Royalty-Free Audio Tracks for "Two"

Sound transparency (first example on sound transparency and opacity). This sound sample is a companion to my talk and paper presented at foteo ("faire oeuvre, transparence et opacité") at université laval, visual art department, may 2008. The paper title is: "transparence sonore : acoustique physique; opacité sonore : un phénomène psychoacoustique; implications en création sonore". This nearly trivial example shows what i call "sound transparency". Since sound propagation is a linear phenomena, sound is transparent: the presence of a given sound (here a razor) does not modify the sound quality of an other sound (here a knife being rubbed). You can appreciate the sound quality, timbre, texture, dynamic of each sound even when an other one is present. The second part of the sample is the repetition of the first part, but the two sounds are presented on different channels.

[Kde domov muj?] (The Czech National Anthem) [Where is my home?] Duration: 1 minute, 5 seconds PERFORMER(S) Jakubcin, Julia Name also documented as: Jacubcin, Julia NOTES The first stanza to this song, preceding the first stanza to the Slovak National Anthem, constituted the national anthem of the Czechoslovak Republic beginning in 1918. Since 1993, the first two stanzas of this song have served as the national anthem of the independent Czech Republic. The Slavia colony in Florida was established by Slovaks who had first settled in Cleveland in 1912. ETHNIC GROUP(S) Slovak Americans LANGUAGE(S) Czech INSTRUMENTATION vocals GENRE(S) Czech songs National anthems SPEAKER(S) Morris, Alton C. COLLECTED BY Morris, Alton C. CREATED/PUBLISHED 1939/09/01 LOCATION [St. Luke's Lutheran Church] Slavia, Florida Seminole County

Made with free tuareg 1. 5 and cool edit pro 2. 1. This breakbeat sequence includes the hot pants break* and the amen break** (besides the four crashes added after exporting from tuareg, mixed with cool edit pro 2. 1). I applied some cuts and two distorsion levels to the last one (i always loved to distort breakbeats). I made it several years ago, i think originally at 120 bpm or 140 bpm. . . But i wanted to check out how does it sounds at 96 bpm and i liked. Anyway, this is acid-sized (its duration is exactly 41 bars at 96 bpm), so you can change the speed to any bpm you want. * http://www. Freesound. Org/people/bronxio/sounds/200173/** http://www. Freesound. Org/people/bronxio/sounds/200174/.

Sound for the peaceful 16 - percussion instruments developed by nova sound and erace the hate for the power two the peaceful campaign. Sounds designed by nova sound. All original royalty-free sound fx, virtual instruments, loops and music by nova sound technology. We need your support to continue this operation! you can support by:. Subscribe to our youtube channel https://www. Youtube. Com/user/novasoundwav. And leave a comment below!. Join our mailing list at https://www. Novasoundwav. Com/pages/fr. . . For more free downloads and updates. Subscribe to our soundcloud at https://soundcloud. Com/novasoundwav. Follow us on ig: https://www. Instagram. Com/novasoundwav/. Follow us on twitter: https://twitter. Com/novasoundwav. More all original sound fx, available at novasoundwav. Com.

Sound for the peaceful 16 - percussion instruments developed by nova sound and erace the hate for the power two the peaceful campaign. Sounds designed by nova sound. All original royalty-free sound fx, virtual instruments, loops and music by nova sound technology. We need your support to continue this operation! you can support by:. Subscribe to our youtube channel https://www. Youtube. Com/user/novasoundwav. And leave a comment below!. Join our mailing list at https://www. Novasoundwav. Com/pages/fr. . . For more free downloads and updates. Subscribe to our soundcloud at https://soundcloud. Com/novasoundwav. Follow us on ig: https://www. Instagram. Com/novasoundwav/. Follow us on twitter: https://twitter. Com/novasoundwav. More all original sound fx, available at novasoundwav. Com.

The story begins by a music that i found. A open door, heels, then silence, a chair, computer sounds with mouse, retake of music and close of the door. , who is the ending of music too. To produce that, i choose audacity; i take recorded moments of life. For the technique, i choose a fade in and fade out for the music and the recorded sounds fit well together. For the moments of silence, when the work begins, i only let the recorded sound talk without music. I choose to work with two mono audio tracks: on for the music and the other for the daily sounds. Descriptif selon la typologie de schaeffer. 1. Masse : son dit “cannelés”2. Timbre harmonique :3. Grain : rugueux4. Allure : non vibrato5. Dynamique : abrupte6. Profil mélodique : tentatives de variations glissantes7. Profil de masse : son cyclique avec des moments doux puis un peu plus fort.

It's a recording of three emtec cd-rs being broken with bare hands. I had 3 audio cd-r that were burned useless. I decided to record their last sounds. You can hear the cds cracking and breaking, me bending them and trying to break them - they were pretty elastic - i had to learn how to crack them. So at first i had some trouble. Around 0:45 you can hear as i'm bending two cds together they squeak and crackle but don't break. The sound is not edited (hence the tag "raw") - no processing was done - i just truncated the beginning and the end leaving you everything you might need. Recorded with a zoom h2 placed on my bed. I was breaking the cds above it. There was a lot of splinters around, you can hear me fiddle with them from around 2:10 on. Originally wav 96khz/24-bit. Truncated and converted to flac with audacity.

Yep this is a crazy sound. What have i done. . . I have build a nonlinearcircuits sloth lfo. Https://www. Modulargrid. Net/e/nonlinearcircuits-sloth-4hpedited info:i have built the regular version. The sloth has two outputs x and y. I connected x to control frequency on one oscillator and y to control amplitude on another oscillator. Frequency experiment on left channel. Amplitude experiment on the right. The file starts as the amplitude is 0. Next time the amplitude is 0 (almost) is at about 48 sec. Then 48 sec later, at 1:37 the amplitude is 0 again. The two cycles are not identical. The tones are harder to analyze. . . X and y outputs. I guess those corresponds to x and y in a coordinate system. You can find video clips watching the sloth “drawing” butterfly wings. For example:https://www. Youtube. Com/watch?v=0ku6npz1s4gand maybe check this:https://www. Youtube. Com/watch?v=occhcm5oxp8http://nonlinearcircuits. Blogspot. Se/2014/09/sloth-chaos. Htmlthis later link is the developers page. The constructor (andrew) of this module says that my version completes “1 cycle every 15 seconds”. What does that mean? is one cycle one lap in the butterfly pattern? will the pattern repeat itself? yep, i’m going to ask him…. Edit:andrew answers my questions: “it is a very approximate description of the frequency, cycle is not the proper term to use. . . . Nor is frequency really, but they are descriptions that people can relate to easily. Depending upon the pot settings and whatever other initial conditions that happen to be in place, the signal may traverse the typical double strange attractor path. It may stay in one attractor for several loops before crossing over to the other one. The pattern will never repeats itself, it might come close but won't do it. ”my question: so, one “loop” is one cycle?andrew answers: typically it takes approx 15 seconds to make a rough figure 8, but depending upon the pot and other factors, it may take longer, much longer, sometimes it even pauses whilst deciding which way to go next.

Our neighbors fought a lot. Usually at around 2am and it would go on for about an hour or two. Besides being angry and annoyed, my girlfriend and i were always curious as to what they could possibly be fighting about. I had the idea to record them via a long mic cable stretching down the hallway, strategically hidden behind a few pieces of wood, to their apartment door. My plan was to one day play this from my stereo at a loud volume around 2am. As i later thought this through i realized that this would only disturb my other quiet neighbors and was a fairly selfish act. Anyway, i used a $100 audio-technica stereo mic and recorded it directly into my computer as an. Aiff. They seem to be arguing about a stereo and someone not loving the other. It's rather sad. We no longer live in that building so i have no idea what became of them. I hope they are happier now. Enjoy.

Sound for the peaceful 16 - percussion instruments developed by nova sound and erace the hate for the power two the peaceful campaign. Sounds designed by nova sound. All original royalty-free sound fx, virtual instruments, loops and music by nova sound technology. We need your support to continue this operation! you can support by:. Subscribe to our youtube channel https://www. Youtube. Com/user/novasoundwav. And leave a comment below!. Join our mailing list at https://www. Novasoundwav. Com/pages/fr. . . For more free downloads and updates. Subscribe to our soundcloud at https://soundcloud. Com/novasoundwav. Follow us on ig: https://www. Instagram. Com/novasoundwav/. Follow us on twitter: https://twitter. Com/novasoundwav. More all original sound fx, available at novasoundwav. Com.

Exciting music i made in garageband for something called victors crypt!. I came up with the staccato-strings first and developed the music from there. Added a string-melody and later on a minor melody on french horn. Hammered two chords on piano in the back. Got a mysterious detective feel to it i think. So i named the tune "detective hawkeye". Could be useful in anything dark, eerie, spooky, creepy, scary, horrific,mysterious, crime-ish, thrilling or whatever comes to mind. Feel free to use it as long as you give me the credit for it/write me as composer. And subscribe to and watch my channel :). Be cool, watch and subscribe to victors crypt:https://www. Youtube. Com/channel/uca8o46_wrqzehsdzuwfq3rq. Throw horns, dance & hail satan!.

A neighbor of mine might have just peed in his pants if he couldn't shoot off his illegal commercial fireworks before the fourth. So, july first, his manly outpouring of window-rattling bomb blasts echoed across an entire valley. For nearly two hours. I like fireworks. When i go to see 'em. Not so much when i can't get away from them. Sure, i could have gone shopping, or out for a drink. I recorded it instead. This particular explosion is just the largest of those that came after i started recording. It's just a lowly iphone but it does pretty well. Admittedly, even with no amplification it might have been too much for the microphone. You have the clear launch sound followed by burst and echo. The same blast kicks off the other fireworks file i am uploading.

My fmc002 submission!. For this, i generated several sounds from audiopaint (free software) and spectrobits (free vsti), two image->sound synthesis softwares. These sounded interesting but i wasn't sure how to use them. Then i made a drum beat, synth bassline, and some other stuff, rendered the song, used paulstretch to stretch the song out 4x, put it back in the project, added even more stuff to other tracks (mostly timestretched versions of my own samples), rendered the result, brought that render back into the daw, and then reversed it. A lot of effects and automation were also used during all 3 stages of the track's creation. Further, each time i rendered, i used the same mastering chain, so eq and other stuff is being applied multiple times. This brings out some surprising timbres and overtones. Really, the final recording sounds nothing like the sounds i began with.

I made this instrumental music in two versions, with and without drums. This is without drums. I did it in garageband for a thing called victors crypt. I made a bass-line on a doublebass that i played around with. Like the fact that it's groovy and a bit dark. Strings are always cool so added that and more. Could be perfect for an intro, outro, something spooky and cool, mysterious or whatever you feel like. . . . Let the imagination run wild. Feel free to use it as you like as long as you subscribe to and watch my channel! if you wanna use it in your music and gonna release it, ask me first. Don't wanna see my music copyrighted by someone else of course. Be cool watch and subscribe to victors crypt:https://www. Youtube. Com/channel/uca8o46_wrqzehsdzuwfq3rq. Throw horns, dance & hail satan!.

Things may be closed but tennis courts still work, and she was dressed for it. The hallway we walked through after, was empty. A lot of them are lately, we used this one. "after" was that once she finished, the visible front door gave her pause. I wasn't done, so we continued with her chest on a desk in the first open room we came to. More daylight in there, too. From the hallway we wouldn't have been seen. I decided not to tell her about the mixed-gender group of five that gathered at the window for a while, nearly two meters away to intently watch us making more of these sweet penis-in-vagina sounds, gathered by my phone, edited in audacity. Her ass was up high and her sunlit, flexing pink point of penetration very visible to our audience, and it didn't take me much longer. Sadly. Tried to make it last. I was wearing my lowered shorts and a bit of a smile. If she'd had a mask on, it would have been the only thing.

A conversation that happened in the kitchen. Warm for the time of year, a man steps in to play basketball on a corner paved lot. Just one basket and no refs, the two free-throws he is offered are almost unheard-of. Maybe some of them didn't like his looks. Likely too they know what he does for a living. Likeliest of all he was playing well, but for sure the woody that won't quit had come to call, and they probably liked that least of all. So he steps up to the foul line and the first shot zips the net. So does the second one, but even before it gets there, someone jumps in behind him, grabs hard and and zips his pants all the way down. They aren't around his ankles, though. Close one, he's standing on them. Worse, a local crowd has gathered. Only the stunned aren't laughing or pointing or cheering. You put your pants back on and go home, what else can you do? game over.

This helicopter sound design was created at fl studio, in the sytrus synthesizer. The sound consists of four layers. 1. Sine wave frequency of 44 hz. Simulates the low frequency noise of propeller blades. 2. White noise passed through the svf filter. Simulates the noise of propeller blades. 3. Saw wave. Simulates the sound of an engine. 4. The sine wave. Imitates a high-frequency whistle of the engine. Various modulations are applied to all waves through the envelopes of the synthesizer. Next, the signal on the mixer channel is processed by a multi-band exciter and equalizer. Then a signal was sent to two channels with delay processing. One of them imitates reflections. In the lower-middle frequency range. On the second in the upper-middle frequency range. As you approach the sound source, the volume parameters of the direct and reflected signals are automated, low pass filter, pan width and equalization of direct sound. The helicopter performs strange maneuvers, as if making constant circles during the approach to the listener. I did not seek to create the veracity of these maneuvers.

This is a version of a previous file i created (https://freesound. Org/people/funwithsound/sounds/394897/)that includes a gong at the end to make it more dramatic. The link to the gong sound is here: https://freesound. Org/people/veiler/sounds/209917/. It would be really nice of you to credit the user "veiler" for their awesome gong sound, and maybe me for making the failure sound. But no obligations. :-). While perusing freesound for a nice and dramatic sound or two of failures, all the ones i've seen were pretty wimpy, so-to-speak. So i decided to create a few failure samples on a music-making program called musescore. These are for big whopper failures (or "epic failures") and are very dramatic - they may also be used for a scary event in a film or play. It includes a short buildup and a loud dissonant chord at the end to create suspense and horror. For this project i used violins, violas, cellos, double basses, timpani, cymbals and brass. Enjoy!.

Part 3 of a ridiculously huge parody of a nuclear explosion for comedic effect (played after part 1, simultaneously with part 2). Created using these sounds:http://www. Freesound. Org/people/iwiploppenisse/sounds/156031/http://www. Freesound. Org/people/juskiddink/sounds/108641/http://www. Freesound. Org/people/cgeffex/sounds/93835/http://www. Freesound. Org/people/noisecollector/sounds/6721/http://www. Freesound. Org/people/frolickingdp1/sounds/353928/http://www. Freesound. Org/people/sandyrb/sounds/95078/http://www. Freesound. Org/people/rock%20savage/sounds/81044/http://www. Freesound. Org/people/branrainey/sounds/142351/. Edit: i see a lot of people are enjoying this sound! if you'd like to donate a dollar or two towards my personal starving artist fund here is a donation link: https://www. Paypal. Me/baharv89.

This is one of those sound effects you kind of go "huh?" about when you hear. Let me explain what this is and how i imagine it being used. To me, it sounded like a good sound effect for when a computer (whether in a game or animation or whatever) screen starts writing down text (in other words, when a message is displayed on a screen and is written down one letter at a time until the complete message is shown). There are two versions here. The first one fades out (to be used a single time), and the second one is loopable (so you can loop it to make it last longer). Okay, i'm done with the long boring description. I hope you enjoy this weird, different type of sound effect :). P. S. I request that all my sound effects only be used for clean, appropriate media and projects. Thanks!.

Theme old bombtimer :. Production steps:i record the sound of a book falling on the floor. I copy the sound impact 8 times on the same track. At the end « i fade in closing ». On another track, i copy the first track. I displace this second track on the right with « time shift tool », it creates a shift. I change the pitch of this track with a percent of change of -47. On a third track i take another recording sound of a key knocking on metal. I copy this sound 8 times and put a « fade out » on all the third track. I shift the track to begin at 1sec. Description:this sound look like to an old bomb timber. There is two different sounds one look like a heartbeat and the second a clock ticking. It creates a very stressful sound because of the progressive amplification. The bomb will explode soon and we need to hurry to defuse it. Typologie de schaffer :. Masse: son cannelétimbre harmonique: éclatantgrain: itérationallure: mécaniquedynamique: graduelleprofil mélodique: ascendantprofil de masse: dilatation.

The title is pretty self explanatory. There's a little bit of wind noise. ---two primo em172 mic capsules > zoom h1. I made this recording with my newly acquired $10 primo em172 omni mic capsules, which i soldered to a cable diy loosely based on this tutorial:http://www. Wildmountainechoes. Com/equipment/diy-stereo-electret-mics-primo-em-172-capsules/this is a good example of what the capsules sound like when plugged directly into an inexpensive zoom h1 audio recorder. So far i've been pretty stunned by the performance of these capsules, which are significantly more sensitive than the built in microphones on the h1, and to my ears sound much less muddy. I'm particularly impressed by this because the capsules are running on the 2. 5v of plug-in power that the h1 delivers, which is below the minimum specs of the capsules. Even so there is remarkably little noise. I can only imagine how they would sound with a battery pack to deliver a full 5 volts!.

I made this instrumental music in two versions, with and without drums. This is with drums. I did it in garageband for a thing called victors crypt. I made a bass-line on a doublebass that i played around with. Like the fact that it's groovy and a bit dark. Added a drumbeat i made that i think suited the bass-line. Strings are always cool so added that and more. Could be perfect for an intro, outro, something spooky and cool, mysterious or whatever you feel like. . . . Let the imagination run wild. Feel free to use it as you like as long as you subscribe to and watch my channel! if you wanna use it in your music and gonna release it, ask me first. Don't wanna see my music copyrighted by someone else of course. Be cool watch and subscribe to victors crypt:https://www. Youtube. Com/channel/uca8o46_wrqzehsdzuwfq3rq. Throw horns, dance & hail satan!.

This racing vehicles recording 2 track. It might be viable for use in racing and driving video games. But over the past few years, games emerged as some of the top-selling products in video and computer gaming. The main focus in such a project would be on generating a score by merging a few sounds in the background of the soundtrack (such as bumping or breaking) with specific vehicle sound effects (such as braking). Loops would be used to affect pre-composed music, using live data to change the mix and instrumental direction (such as the dynamics, texture or timbre), or even the pitch, rhythm or tempo), moreover, the musical soundtrack for racing vehicle gameplay could be stored in a memory card to use in digital sport car sounds unit that convenient sound effects according to the processes, which is essential to participate in the training driver by granting the user with more information. In real life, the driver has more sensory information.

Original file name: abstract hip hop beat 1 - 28 september 2012specs: 140 bpm, stereo, 48000 hz, 24 bit, wav formatdescription: an abstract hip hop beat loop programmed into propellerhead's reason redrum. Used the 'abstract hip hop kit' samples that come with reason's soundbank. First part of loop is dry with no effects except eq, second part is more processed. Sample pattern: a1 x2 | a2 x2effects: equalized all the samples. First half is dry in that no extra effects apart from eq are used; second part of the loop is actually two copies of the same loop with one of them containing extreme compression after some unison (detuning) and ~30ms delay. Contact (pm) me if you want any changes to this sample (please include freesound sample number 166029). You can use this commercially with proper crediting, but please let me know where and how you use it - seeing this used will really make me happy. :).

Recorded at night with external microphones using a panasonic lumix gh-2 camera,out of the window from 2nd floor. In this sound file i mixed two sound recordings, the chronologically second record i put first, the first record i put second using a little fade out on the latter. Some night bird interacts. Generalcomplete name : foxy_foxes_ii_and_i. Mp3format : mpeg audiofile size : 10. 00 mibduration : 4mn 22soverall bit rate mode : constantoverall bit rate : 320 kbpswriting library : lame3. 98rsoftware : lavf56. 25. 101. Audioformat : mpeg audioformat version : version 1format profile : layer 3duration : 4mn 22sbit rate mode : constantbit rate : 320 kbpschannel(s) : 2 channelssampling rate : 48. 0 khzcompression mode : lossystream size : 9. 99 mib (100%)writing library : lame3. 98rencoding settings : -m s -v 4 -q 3 -lowpass 20. 5.

Created this excerpt for my film "one thing". Melodic cello is used to create a doleful mood. Very lovely imo. Not a complete piece but a nice sound-bite? mp3. 120bpm. Created in garageband. Feel free to hash it, mash it and trash it. Use it as you wish, with only two conditions:. 1. Don't claim it for yourself by claiming you created it - that's just rude!. 2. If you feel inclined, and it's appropriate for you to do so, please feel free to say something like "credit to max riley tennant for their part in sound used" - or something like that. Or nothing like that. It's ok. I just would like max riley tennant credited too, if you wanted to. Don't bother to credit me. I don't really mind :) and only if you want to :) enjoy!. And if you want to see the short film i created it for: one thing then click here. Please be advised though -it is a potentially challenging subject matter, and i've been interviewed by the police for it already, so don't watch it if films about mortality and the ephemeral nature of life may upset you?.

I have built a nonlinearcircuits sloth lfo, the regular version. Sloth is a chaotic lfo. The output is based on the lorenz system. It is a system of ordinary differential equations. It is notable for having chaotic solutions for certain parameter values and initial conditions. In particular, the lorenz attractor is a set of chaotic solutions of the lorenz system which, when plotted, resemble a butterfly or figure eight (very much from wikipedia). The sloth has two outputs x and y. Think of them as coordinate pairs. The output will probably never repeat itself but there is a pattern. I have built the regular sloth it usually takes approx 15 seconds to make a rough figure 8, one cycle in the “butterly”. The knob changes the chaotic pattern. At some settings the signals will spend more time in one strange attractor than the other. Now i’m testing the module in different ways. In this sound i have connected white noise to a filter. The filter frequency is controlled by sloth (x output). In this patch i have set the initial frequency at 12 o'clock. . . The output sound from filter goes to reverb.

The sound is coming from the fans of a server. By pulling out one of the fans, all other fans turn up to 100%. The microphone is located above the air duct exactly in the middle of the case and thus between two fan fronts. The soundfile starts with the fans on standard speed. After a few seconds the fans turn up to 100%. I left them there for a few seconds and then quietly plugged the removed fan back in. This fan now also switches to 100% - this is the single, delayed "speed up" that can be heard from second 35. About 10 seconds later, all fans return to normal speed. Unfortunately, a colleague came in at that time and ended up talking into the recording. Due to lack of time, i was unfortunately unable to repeat the audio that day, but will certainly do another re-recording in the future. Feel free to use the sound; no attribution required. Feel free to write me in the comments what you used the sound for. Equipment:røde lavalier microphonesound devices mixpre-3 ii. File:wavmono96 khz32-bit float.

A third version of https://www. Freesound. Org/people/gis_sweden/sounds/352940/. Now i let the alm pip slope affect a filter. I play a little sequence made with cvlfo , clock divider, attenuverter, quantiziser. The way i usually do…. But the interesting thing is the cvad (?) voltage controllable envelope generator. But in the case of alm pip slope you just control attack and decay. Seems to be enough. As in the other versions of this sound i connect one lfo to attack and a second lfo to decay. But this time i connect the vcad to control the frequency of a filter. Interesting. I wish i had two more cvlfos… should open up for rhythmical usage. I use no vca or adsr. I have connected the vco straight to the vcf and the vcf to mixer. In the beginning i have the frequency pot at 2 a clock then i gradually move it clock wise and let the vcad take control. 1 minute in the pot is fully clock wise. The vco is playing a sawtooth wave. If you dl and inspect the wave you can see that in the beginning and the end it is a sawtooth wave, but in the middle part the filter affects the wave form.

Created this excerpt for my film "one thing". Chirpy guitar is used to create an odd vibe. Very lovely imo. Not a complete piece but a nice sound-bite? created in garage band at 120bpm. Mp3 file. Feel free to hash it, mash it and trash it. Use it as you wish, with only two conditions:. 1. Don't claim it for yourself by claiming you created it - that's just rude!. 2. If you feel inclined, and it's appropriate for you to do so, please feel free to say something like "credit to mr. Max riley tennant for their part in sound used" - or something like that. Or nothing like that. It's ok. I just would like max riley tennant credited too, if you wanted to. Don't bother to credit me. I don't really mind :) and only if you want to :) enjoy!. And if you want to see the short film i created it for: one thing then click here. Please be advised though -it is a potentially challenging subject matter, and i've been interviewed by the police for it already, so don't watch it if films about mortality and the ephemeral nature of life may upset you?.

I have built a nonlinearcircuits sloth lfo, the regular version. Sloth is a chaotic lfo. The output is based on the lorenz system. It is a system of ordinary differential equations. It is notable for having chaotic solutions for certain parameter values and initial conditions. In particular, the lorenz attractor is a set of chaotic solutions of the lorenz system which, when plotted, resemble a butterfly or figure eight (very much from wikipedia). The sloth has two outputs x and y. Think of them as coordinate pairs. The output will probably never repeat itself but there is a pattern. I have built the regular sloth it usually takes approx 15 seconds to make a rough figure 8, one cycle in the “butterly”. Now i’m testing the module in different ways. In this sound i have connected white noise to a filter. The filter frequency is controlled by sloth (x output). In this patch i have set the initial frequency low. That’s why there is a low humming wind noise between the “tops”. The output sound from filter goes to reverb. The sound is more a study of sloth behavior than an attempt to create a great wind sound.

I remember as if it was yesterday !. An enfant terrible move sprungvery spontaneously out of the brainof just a normal guy 👦 whowent to get a nice but huge two-piecevintage very german very deutsch hohnerguitar / instrument amplifier ( so very big ) about900 km away direktionebavaria. . . The year was 2018. . . Ah, withthe train. . . 9h in the train one way , 9h back. . . Around the corner of the thomann. De huge onlinemusicstore , that’s what the seller told me. . . Btwi won this little auction on ebay & there was no wayi was going to let it ship, besides i travelled freeback in those days !. At a certain moment ! poef ! train packed withpeople. . . I thought, this must be my moment degloire ! a performance in a german packed train. . . So ipulled out my little phone, looked for the googletranslate app, searched for some inspiration &the rest is history , 25 oktober 2018 ! what aglorious day ! german people are so reservedmight i say polite ! no reaction whatsoever ??!!??. . . That’s why ladies &gentlemen, i put it on again but a little bit louder. . Kein ein without zwei !. 23. 11. 2020jj josé.

Trying to start a 1983 volvo 245 after a stop at a gas station. First we hear the seatbelt warning signal after the driver turns the ignition on. The first start attempt fails. The two following attempts fail because the starter fails to engage with the flywheel, creating a very loud and unpleasant sound. There is some reverberation from the metal roof of the gas station. At 00:24, the driver remarks "he's doing it again!". The fourth attempt succeeds in starting the engine after a rather long cranking. We then drive off and we also hear some squeaking from the steering wheel. Throughout the recording we hear breathing noises from the driver (80 year old man, smoker). The recording was made in the front passanger seat with the window open, that's why there a very noticable difference between the left and right channel. Recorder: edirol r-09, 48khz wave/24-bit, cropped with cool edit pro, re-saved as 48khz wave/24-bit and compressed with flac. No other pp. Edirol r-09 settings: low cut: off, mic gain: low, agc: off. Recorded on june 15, 2012 in åkersberga, sweden.

. . Inside an intercity express (ice) between stuttgart and mannheim, sitting in an almost empty (three passengers) second-class broad-spaced compartment at around 9 pm. After a shaky first minute an even part follows for around 90 seconds. Interrupted by some road holes the steady sound continues, now with the frequency of the engine sound rising until the beginning of the fourth minute. Here the "main part" begins, starting with several moments of acceleration, deceleracion and breaking. From minute 5:15 to 7:35 the train reaches it's peak velocity, with only few bumps. After a short deceleration the train inceases velocity again, reaching a second peak, this time noticeably bumpier. Once in a while you can hear some element of the fitments rattling nervously along the track, depending on the constitution of the railways and the overall situation. During the last two minutes the train keeps on decelerating slowly and continuously until the end. Recorded in stereo with a portable stereo recorder (zoom); enhanced in audacity using a parallel dynamic eq (tdr nova), a compressor (vos density mkiii) and a binaural spacializer (auburn panagement).

sigil reel 2: percussion. Created by nathan moody, formatted for use in the make noise soundhack morphagene. This is one of two morphagene reels made from one-of-a-kind handmade electro-acoustic instruments and found objects created by sound designer and musician nathan moody, an outgrowth of his 2018 album, "the right side of mystery. ". This reel is focused on percussive, inharmonic content from found objects and one-of-a-kind handmade instruments including metal table tops, perforated steel gongs, stretched springs, steel tubes, a drum made from packing tape, shakers made of tin cat food lids, and much more. They were struck with rubber mallets, carbon fiber rods, drumsticks, and woolen tympani mallets. They were recorded with a variety of microphones (sennheiser mkh50, dpa 4061, audio-technica at4050, shure sm57 and beta 52a), through awtac channel amplifier and neve 511 preamps. The hits are gritty, raw, and harmonically complex often with long decays, holding up well to varispeed manipulation, decay-tail looping, and filtering. For more information about nathan moody and the sounds and instruments used on this reel, visit nathanmoody. Bandcamp. Com and music. Noisejockey. Net.

I combined an ambient bar crowd recording that i found here with a funky little back beat that i also found on this site and made a great cubicle noise blocker / filter. I use this at work with headphones on when i'm trying to concentrate and drown out conversations in the office. Also good for when i work from home and i'm trying to drown out the tv and other distractions. The crowd noise is excellent at diffusing regular office conversation and the little funky back beat keeps the crowd noise from getting boring. This works really well even at fairly low volume i. E. You dont have to crank it loud to drown out the distractions. Hope you like it and thanks to everyone for the great sounds on this site. Combination of the following two files - yet another bar crowd - june 2007. Wav (lonemonk)hip hop. Wav(ls)ps - i purposely let the crowd noise run out for a few seconds at the end so that you can appreciate the full groove of the hip hop. Wav. Has a nice effect when you loop the whole thing, gives you a little break from the crowd noise. Almost like you're stepping out of the room for a second.

This 6:17 minute cut from a 25:00 piv (penis in vagina) sex session that features loud doggystyle sexual intercourse between two young consenting adults. Recorded in september 2016 in a california dorm room: female is asian, 19 y. O. , male is white, 21 y. O. Both are rather slender, and have already had orgasms from oral sex. The slapping sound is made from the male's lower abdomen and testicles rhythmically striking the female's bum during rapid penetration -- the female is kneeling on the edge of a bed and the male is standing on the floor. There is no artificial birth control used -- the couple uses "natural family planning" meaning sex occurs only during infertile times of the female's ovulation cycle. Despite the loud sound of flesh slapping together, the couple is actually very slender -- the recording is natural with no effort to "act out" and there is a slight background music: classical. The parts edited out to make this 6:17 cut were aspects of piv sex that was too quiet to hear -- other sexual positions, i. E. , the female lying face-down with her stomach touching the bed, male atop, were at a much slower tempo so as to be nearly silent.

This intro was produced for the german "grinkenschmidter winterfest 2018" show and is now available for you. Text:ladies and gentlemen - may i have your attention please!the show starts in ten - nine - eight - seven - six - five - four - three - two - one - go. -----------------------------------------------due to recent events i would like to share this statement with you:no, i did not sold this countdown sample. It was - and of course still is - cc0 licenced and you are allowed to use it anywhere. If you receive a copyright claim from youtube or someone else this is generally because people used it in their productions and distributed them commercialy, which is ok, because this sample is cc0 licenced. But the "content id scanning system" of youtube thinks by mistake that the distributor is the exclusive copyright holder of that sample/track. Such systems are prone to errors and will probably never work perfect. . . If you run into such issue, please dispute the copyright claim and refer to this sample on freesound. Org and the cc0 licence:http://creativecommons. Org/publicdomain/zero/1. 0/. Regarding to all my sounds you are really safe when you do this and if you require any further assistance please do not hesitate to contact me!. You can find more information here:https://freesound. Org/help/faq/#a-freesound-sound-i-used-in-a-youtube-video-got-copyright-claimed-what-should-i-do-----------------------------------------------.

Burghrecords presentsthe dystopian future - sound effects pack. Download link : https://www. Edinburghrecords. Com/products/new-arrivals/dystopian-future/. The dystopian future effects pack is sampled from various synthesisers inspired by the cartoon animation series samurai jack. These samples & loops are designed to work in a range of movie editing software and daw programs contain a selection sounds that are guaranteed to bring life and character to any media production. All the samples are supplied as wav files and are recorded 24bit 96khz. They can be imported directly into your daw or program of choice or can be loaded into any software. You’re welcome to use the sounds in your project in any way you like. The sound effects are supplied in a zip file, so you’ll need to extract them before you can see them. You can use them in your music, as well as audio and video projects. The library contains three folder with one with single bass sounds and the other two are different sound effects all together pack contains more than 100 royalty free sound effects. Official site :https://www. Edinburghrecords. Com.

Burghrecords presentsthe dystopian future - sound effects pack. Download link : https://www. Edinburghrecords. Com/products/new-arrivals/dystopian-future/. The dystopian future effects pack is sampled from various synthesisers inspired by the cartoon animation series samurai jack. These samples & loops are designed to work in a range of movie editing software and daw programs contain a selection sounds that are guaranteed to bring life and character to any media production. All the samples are supplied as wav files and are recorded 24bit 96khz. They can be imported directly into your daw or program of choice or can be loaded into any software. You’re welcome to use the sounds in your project in any way you like. The sound effects are supplied in a zip file, so you’ll need to extract them before you can see them. You can use them in your music, as well as audio and video projects. The library contains three folder with one with single bass sounds and the other two are different sound effects all together pack contains more than 100 royalty free sound effects. Official site :https://www. Edinburghrecords. Com.

I made this recording of ambient backgroud noise directly beneath the eiffel tower. The shape of the eiffel tower creates a unique acoustic environment in the vicinity of the tower, especially beneath it. You can hear a much higher level of background noise than you would hear in an open area, and the noise is unusual. The tower is made of thin pieces of iron arranged into a complex and very large lattice, which reflects and slices and dices sound in a unique way. Thus you have a high level of very even and unidentifiable background noise as noises from the ground and the platform get bounced around and distorted by the structure of the tower. This recording was made from the ground, with microphones pointed straight upwards about 2 meters off the ground. Noises from the ground travel upwards and bounce around the inside of the tower, then drift back down. There are noises in the tower itself as well, such as elevator motors and people on the platforms. The first platform, at 57 meters, is open in the center, whereas the second platform, at 116 meters, is completely closed and flat on the bottom. Wind moving through the tower also makes noise, and again the open structure of the tower changes the noise in a way that is specific to the eiffel tower. There wasn't much wind at ground level for this recording, but i don't know what the wind speed was at higher levels in the tower. Some voices in multiple languages are audible in the recording, as the area beneath the tower is awash in tourists. Recorded hand-held with a zoom h4n and a mini windjammer, using built-in mics, in stereo 96 khz / 24 bits, then converted to mp3 at 320 kbps because of the size of the file. Duration is about two minutes.

This sound is a superposition of two records. First, i recorded a coffee machine and cut it to extract just the sound of the money that falls in. Then, i recorded the sound of keys and mix it together on audacity. I wanted to make a sound that can be repeated in a loop. So, i copied the record of the coffee machine to give a rhythm to the sound. I tried to cut the sound of the key perfectly to make a loop with the help of the option “search for crosses with zero”. Then, i added view effects. I have changed the amplification in purpose to bring out more the sound of the coffee machine. I also change the reverberation. Gradually, my sound made me think of a music in a video game that i used to play, rayman. It was difficult to describe what the sound was like, but i liked the atmosphere, so i kept it. Then, a friend told me it made him think of a frog noise, and i liked the idea. Code typologie de schaeffer : v’’précisions morphologie :sur le principe de l’écoute réduite, la morphologie du son peut-être décrite comme étant un groupe tonique car nous entendons plusieurs hauteurs. Le son peut être qualifié d’acide et éclatant. Le son paraît plutôt rugueux. Je dirais que le son est dynamique mais que l’attaque n’est pas brutale mais graduelle au moment où l’on entend le son de la machine à café. Le profil mélodique présente des variations plutôt scalaires. Pour finir on entend des hauteurs de sons parmi d’autre son.

This piece was produced using a text-to-speech program on a "rant" by francis e. Dec. Mr. Dec was a disbarred lawyer from new york state who spent the balance of his adult life writing and publishing rants against a global conspiracy that had removed him from the legal profession, controlled the white house for decades, performed clandestine medical operations on the entire population of earth and worked for a malevolent entity called the "world wide communist gangster computer god". Mr. Dec appears to have hated just about every religious, racial, ethnic, professional and political group that he was aware of. Although i have tried to maintain the syntax and general flow of this rant; i have taken the liberty of removing the more offensive passages and phrases. Since the development and widespread use of anti-psychotic drugs in north america, schizophrenic creativity of this level of complexity has become harder to find. Street ranters are an endangered species but my memories of them include the unusually stiff, declamatory and repetitious cadence of their speeches. Curiously, a speech-to-text program mimics some of these features. I hope that the irony in using a computer voice cuts two ways. Mr. Dec's rants are in the public domain. To his credit he was very open source with his work. My use of dec's writings should not be construed as advocacy for his views nor as an endorsement of how our society currently treats persons labeled as schizophrenic. The wikipedia entry on francis e. Dec is a good and balanced starting point if you are interested in the life and work of this very unique and unfortunate man. I leave the listener with this quote by g. K. Chesterton-. "the madman is not the man who has lost his reason, the madman is the man who has lost everything except his reason. ". --.

We develop iphone app that perform musical analysis on recorded audio from the iphone. Our app implementation make use of the audio queue service to receive raw audio buffers from the audio queue callback. In the first version of our app we had the problem of too much clipping on the recording which degrade the accuracy of our analysis. We also suspected that the noise canceling algorithm in iphone 5 produce distorted sound, which is not much noticeable by human ear but distorted enough to affect our sensitive algorithm. We found that the solution to our problem is to set the audio session mode to kaudiosessionmode_measurement. This session mode is supposed to give maximum freedom for us to control the microphone input, which include turning off the automatic gain control and probably noise canceling as well. The solution works very well except that it introduce a strange waveform pattern in the beginning of all recordings in iphone 5. It is very hard to explain the waveform we get, so i made two recordings at freesound so that you can see it visually. The first recording is made in an almost quite environment, and you can see the weird spike in the beginning of the recording. The second recording (this recording) is made with constant background noise, and you can see that the actual sound wave is offset from the strange curve and gradually increase to its original volume. This waveform only happens on iphone 5 devices that we tested, and there is no problem at all for iphone 4s and older generations. We have tried various settings and the glitch is still unavoidable as long as we set the audio session mode to kaudiosessionmode_measurement. We also find similar glitch in one of our iphone 5 devices, in which the glitch happens even if we try to set just the input gain level without changing the session mode. We are not sure if this is a hardware-related bug in iphone 5, or if it is fixable software glitch in the future version of ios. For the moment we are looking for workaround that can avoid this glitch while automatic gain control and noise canceling are disabled.

Recorded in my dad's bedroom with lifecam hd3000 webcam. This is a much better recording than my previous oxygen concentrator file, as i hauled my desktop into the bedroom at the other end of the apartment where the machine now is, when i was home alone. The webcam is on the bed about 3 or 4 feet from the machineat the beginning of the file you hear me flip the big switch and the machine comes on with a long on beep and thumps. I edited it to start then. At 00:1. 8 what i suspect is the water pump comes on, though i may be wrong. That's when the gurgling starts though. The machine has a small reservoir for distilled water to moisten the airflow. A cup or two lasts several daysyou'll hear various hisses and thumps in a 15. 6 second cycle as it runs. At 03:03 i flip the big switch to shut the machine off, and it bubbles and gurgles away for the rest of the file, as water i assume slowly perculates back into the reservoir, the bubbling getting quieter and quieter until it doesn't even sound like bubbling anymore, until it finally ticks to a stop. At 03:16 you hear me step as i get my foot loose from the mic cord lol. At 04:13 the furnace shuts down as a car finishes going by outside in the bass register, faint traffic noises and the furnace being the only background noises you'll hear aside from my moving around a couple times, and a faint bluejay at the end. At about 07:00 you can barely hear the machine anymore, but i could hear a faint ticking with my own ears. At 07:04 the furnace comes back on. At 07:08 you'll hear a bluejay faintly calling outside and a car going by outside after, which finishes the file at 07:20. I edited out my walking to the computer to shut the recording down. From wikipediaoxygen concentrators typically use pressure swing adsorption technology and are used very widely for oxygen provision in healthcare applications, especially where liquid or pressurised oxygen is too dangerous or inconvenient, such as in homes or in portable clinics. Oxygen concentrators are also used to provide an economical source of oxygen in industrial processes, where they are also known as oxygen gas generators or oxygen generation plants. Oxygen concentrators utilize a molecular sieve to adsorb gasses and operate on the principle of rapid pressure swing adsorption of atmospheric nitrogen onto zeolite minerals and then venting the nitrogen. This type of adsorption system is therefore functionally a nitrogen scrubber leaving the other atmospheric gasses to pass through. This leaves oxygen as the primary gas remaining. Psa technology is a reliable and economical technique for small to mid-scale oxygen generation, with cryogenic separation more suitable at higher volumes and external delivery generally more suitable for small volumes. [1]at high pressure, the porous zeolite adsorbs large quantities of nitrogen, due to its large surface area and chemical character. After the oxygen and other free components are collected the pressure drops which allows nitrogen to desorb. An oxygen concentrator has an air compressor, two cylinders filled with zeolite pellets, a pressure equalizing reservoir, and some valves and tubes. In the first half-cycle the first cylinder receives air from the compressor, which lasts about 3 seconds. During that time the pressure in the first cylinder rises from atmospheric to about 1. 5 times normal atmospheric pressure (typically 20 psi/138 kpa gauge, or 1. 36 atmospheres absolute) and the zeolite becomes saturated with nitrogen. As the first cylinder reaches near pure oxygen (there are small amounts of argon, co2, water vapour, radon and other minor atmospheric components) in the first half-cycle, a valve opens and the oxygen enriched gas flows to the pressure equalizing reservoir, which connects to the patient's oxygen hose. At the end of the first half of the cycle, there is another valve position change so that the air from the compressor is directed to the 2nd cylinder. Pressure in the first cylinder drops as the enriched oxygen moves into the reservoir, allowing the nitrogen to be desorbed back into gas. Part way through the second half of the cycle there is another valve position change to vent the gas in the first cylinder back into the ambient atmosphere, keeping the concentration of oxygen in the pressure equalizing reservoir from falling below about 90%. The pressure in the hose delivering oxygen from the equalizing reservoir is kept steady by a pressure reducing valve. Older units cycled with a period of about 20 seconds, and supplied up to 5 litres per minute of 90+% oxygen. Since about 1999, units capable of supplying up to 10 lpm have been available.

Ok, i don't know how many of you might be interested in this, but i figure there's no harm in posting it. I'm working on some original songs. Laptop-based, electronic songs, with many orchestral parts, including violin, viola, cello, and string bass. Presonus studio one has some very nice vst string instruments, and i have some really great ones for kontakt. But they all are missing one thing, and i couldn't find the (admittedly esoteric) sound that i'm looking for anywhere on the internet. Being a viola player myself, i recorded myself playing these very particular incidental sounds. Let me explain-. There's this 'grabby' sound that a well-rosined bow makes just is it is first being drawn across the string. Listen carefully to any of the pros and you'll hear it. In your laptop sequences, if used subtly, right at the point where the first note of a phrase is initiated, this sound can give the string part a marked sense of realism*. This, combined with vibrato, reverb and a nice warm/tube/tape saturation setting, nobody will be able to tell the difference between your vst and the real thing. About the audio-i tried to keep them as pitchless as possible, thus not limiting their utility. I recorded two sets of all four open strings (c, g, d, a), first close mic'ed, and once from a few feet away, in stereo. Or to say it another way, the sounds are as follows-1. Open c close2. Open g close3. Open d close4. Open a close5. Open c far6. Open g far7. Open d far8. Open a far. It's totally overkill for me to record all the different versions, but i suppose somebody out there might find one more appropriate than another for their purposes. They work pretty effortlessly for violin and viola, but you might have to pitch them down for cello and string bass. I added no processing whatsoever, apart from normalizing each individual sound. Aiff, recorded at 44/16. Nady scm-2090 stereo condenser mic, focusrite saffire pro 24 interface, recorded in logic. Not the quietest room, but these sounds will be so far down in the mix that it won't matter. Free for all to download, no attribution necessary. Http://www. Freesound. Org/people/bruce%20burbank/sounds/220917/. As an example, here's the part i'm working on that motivated me to record these sounds, with the grabby sound in place. See if you can spot the three times i used it. *pro tip- much the same way i'll insert an inhale breath right before horn or oboe phrases.

Broadcast made by the Russian composer Dmitri Shostakovich from the besieged city of Leningrad in 1941. The work he refers to here is Symphony No. 7 in C Major, opus 60, subtitled Leningrad. Transcript: An hour ago, I finished the score of two parts of a large symphonic composition. If I succeed in writing this composition well, if I succeed in completing the third and fourth parts, then it will be possible to call this composition the seventh symphony. Why do I announce this? So that the radio listeners who are listening to me now will know that the life of our city goes on as normal. We are all now doing our military duty. Soviet musicians, my dear friends and numerous brothers-in-arms, my friends! Remember that our art is now in great danger. Let us defend our music, let us work honestly and selflessly! Hace una hora, he terminado la partitura de dos partes de una composición sinfónica de gran tamaño. De tener éxito en escribir bien esta composición, de tener éxito en completar las partes tercera y cuarta, entonces se hará posible llamar a esta composición la sinfonía sétima. ¿Por qué les anuncio esto? Para que los radioescuchas que me están escuchando ahora sepan que la vida en nuestra ciudad prosigue como de costumbre. Todos estamos ahora haciendo nuestro deber militar. ¡Músicos soviéticos, queridos amigos y numerosos hermanos de armas míos, mis amigos! Recuerden que nuestro arte está en gran peligro ahora. ¡Defendamos nuestra música, trabajemos honesta y desinteresadamente! Час тому назад я закончил партитуру двух частей большого симфонического сочинения. Если это сочинение мне удасться написать хорошо, удасться закончить третью и четвертую части, то тогда можно будет назвать это сочинение Седьмой симфонией. Для чего я сообщаю об этом? Для того, чтобы радиослушатели, которые слушают меня сейчас, знали, что жизнь нашего города идет нормально. Все мы несем сейчас свою боевую вахту. Советские музыканты, мои дорогие и многочисленные соратники по оружию, мои друзья! Помните, что сейчас нашему искусству грозит великая опасность. Будем же защищать нашу музыку, будем же честно и самоотверженно работать.

No pain no gainshort storyby: maqsood hasnitranslated by: najamfree abuzar barqi kutab'khanafeb. 2019owing to the intensity of heat and thirst, the crow was very enervated but there was no water and shade. He went on roaming about in search of water. He was thinking that, he would definitely die, if he could not find water in a short time. He neither wanted to die nor he was disappointed. He was determined to seek water and shady tree till the last breath of his life but, in fact, the intensity of thirst was creating problem for him. Now he had two choices either he must continue seeking water or leave it and wait for death. He mustered courage and flew east in search of water. He had covered a short distance when he saw a garden and hurriedly started flying towards it he wanted to live and was sure of hisexistence in future. Quite surprisingly, he seemed to be more active now. He wanted to reach the garden very soon and every cost. Though he was flying very speedily yet the garden seemed to be very far off. He got tired and thought that the garden be an illusion of his mind. He was shaken about the entity of garden. He thought it might be an illusion and he must seek any other way which could rescue his life. But he had not any other choice. To chase the illusion was better than to leave seeking water because there was the possibility of life. If he died while searching, it would be a courageous step. He stopped for awhile and the garden was quite at short distance. He hopefully started marching towards the garden and felt that it was not too far. He felt grief for wasting a precious moment. He would have been ahead if he had not stopped. He felt ashamed ofhis negative thinking because they could bring about demise. These negative feelings were equal to pessimism. A devoted definitely finds his goal at last because god helps those who helpthemselves. He took on fling with great zeal and now he appeared to be fresh. He was spiritually exalted and was flying without difficulty. Now he reached the threshold of the garden. The garden was in the urban area and it meant that it was for pastime but he was surprised to see that there were no bower. Birds had left this garden when men himself neglected it. He flew over the garden but there was no water. He deplored his labor. Suddenly, he found a pitcher in the garden and felt rejoiced and hurriedly went to it. There was very little water in the pitcher and he made very attempt to drink water but failed due to the low level of water. He hatched a plan and caught a pebble with the help of his beak and put it into the pitcher. Owing to heat, the pebble was dry and it seemed that it had liked it. In a short time, the crow poured another pebble and the first pebble did not like this sharer. Although it had not liked thesecond one yet the bitter fact was that the wise crow imposed his will by throwing more pebbles into the water. The crow was gallantly doing his job and, at last, the pitcher became full of wet pebbles and he drenched his thirst by sucking wetness of them.

A few cycles of my dad's home oxygen machine with a ticking battery operated clock in the background recorded in the early morning in the living room with lifecam hd3000 webcam at the end of about 16 feet of usb cable dragged out of my bedroom. He's about 6 feet away, i was with my back to the room with my camera pointed at my chest so he wouldn't think i was filming. It would seem this is the first and only oxygen machine on freesound. A full cycle seems to last from between 7 to 10 seconds. From wikipediaoxygen concentrators typically use pressure swing adsorption technology and are used very widely for oxygen provision in healthcare applications, especially where liquid or pressurised oxygen is too dangerous or inconvenient, such as in homes or in portable clinics. Oxygen concentrators are also used to provide an economical source of oxygen in industrial processes, where they are also known as oxygen gas generators or oxygen generation plants. Oxygen concentrators utilize a molecular sieve to adsorb gasses and operate on the principle of rapid pressure swing adsorption of atmospheric nitrogen onto zeolite minerals and then venting the nitrogen. This type of adsorption system is therefore functionally a nitrogen scrubber leaving the other atmospheric gasses to pass through. This leaves oxygen as the primary gas remaining. Psa technology is a reliable and economical technique for small to mid-scale oxygen generation, with cryogenic separation more suitable at higher volumes and external delivery generally more suitable for small volumes. [1]at high pressure, the porous zeolite adsorbs large quantities of nitrogen, due to its large surface area and chemical character. After the oxygen and other free components are collected the pressure drops which allows nitrogen to desorb. An oxygen concentrator has an air compressor, two cylinders filled with zeolite pellets, a pressure equalizing reservoir, and some valves and tubes. In the first half-cycle the first cylinder receives air from the compressor, which lasts about 3 seconds. During that time the pressure in the first cylinder rises from atmospheric to about 1. 5 times normal atmospheric pressure (typically 20 psi/138 kpa gauge, or 1. 36 atmospheres absolute) and the zeolite becomes saturated with nitrogen. As the first cylinder reaches near pure oxygen (there are small amounts of argon, co2, water vapour, radon and other minor atmospheric components) in the first half-cycle, a valve opens and the oxygen enriched gas flows to the pressure equalizing reservoir, which connects to the patient's oxygen hose. At the end of the first half of the cycle, there is another valve position change so that the air from the compressor is directed to the 2nd cylinder. Pressure in the first cylinder drops as the enriched oxygen moves into the reservoir, allowing the nitrogen to be desorbed back into gas. Part way through the second half of the cycle there is another valve position change to vent the gas in the first cylinder back into the ambient atmosphere, keeping the concentration of oxygen in the pressure equalizing reservoir from falling below about 90%. The pressure in the hose delivering oxygen from the equalizing reservoir is kept steady by a pressure reducing valve. Older units cycled with a period of about 20 seconds, and supplied up to 5 litres per minute of 90+% oxygen. Since about 1999, units capable of supplying up to 10 lpm have been available.