3,133 Royalty-Free Audio Tracks for "Walking"

00:00
01:13
[bass_rhythm_40_rep. Wav]. Experimented late at night some days ago and got this interesting bass rhythm! sounds like background bass rhythm loops for fashion shows and show-ups. Imagine this being played in the background when a designer shows for example a tough, special made suit. This sound can for example be used in videos, for example tutorials - you name it!. If you enjoyed the sound, please rate, comment, spread! it really helps!. Note: make sure to check out the other matrixxx-sounds! the sound quality is always better when you download the sound(s)! ⛄ made this with bosca ceoil! ⭐. Enjoy!/matrixxx.
Author: Matrixxx
00:00
01:45
[bass_rhythm_56_rep. Wav]. Experimented late at night some days ago and got this interesting bass rhythm! sounds like background bass rhythm loops for fashion shows and show-ups. Imagine this being played in the background when a designer shows for example a tough, special made suit. This sound can for example be used in videos, for example tutorials - you name it!. If you enjoyed the sound, please rate, comment, spread! it really helps!. Note: make sure to check out the other matrixxx-sounds! the sound quality is always better when you download the sound(s)! ⛄ made this with bosca ceoil! ⭐. Enjoy!/matrixxx.
Author: Matrixxx
00:00
01:50
Recording of sea undertow on the beach of formicoli, vibo valentia, calabria, italy, the 19th agust 2022 16:44. The sound was recorder with a zoom h1n with windshield at a short distance from the crashing of the waves on the beach. The waves are driven by a light, gentle wind. The sound was recorded by holding the microphone in my hand while i dived knee-deep into the water and walk, filming the crashing of the waves (also on my legs). High-frequency sound details (the foam of the sea, the impact of waves on each other, etc. ) are much more audible here. Processing:* volume adjustment;* 120hz high pass filter (to reduce low some low frequencies rumble due to the wind);* cut and crossfade to eliminate very few mechanical noise of my hand on the mic;.
Author: Nicola Ariutti
00:00
07:03
It's a recording of a man operating a chainsaw in a forest near an underground repair station. I've been biking through the forest whe i heard the chainsaw, so i stopped and recorded 7 minutes of him cutting off branches, tembers and walking around a bit. You can heat the chainsaw, natural forest reverb, sometimes a plane flying by or an undergroud train. The recording was made from around 20~30 meters from the sound source. Recorded with a zoom h2 (rear mics, hi gain, 96/24). Originally a 96khz / 24-bit wav file. Converted to flac using audacity.
Author: Unfa
00:00
00:25
[bass_rhythm_16_rep. Wav]. Experimented late at night some days ago and got this interesting bass rhythm! sounds like background bass rhythm loops for fashion shows and show-ups. Imagine this being played in the background when a designer shows for example a tough, special made suit. This sound can for example be used in videos, for example tutorials - you name it!. If you enjoyed the sound, please rate, comment, spread! it really helps!. Note: make sure to check out the other matrixxx-sounds! the sound quality is always better when you download the sound(s)! ⛄ made this with bosca ceoil! ⭐. Enjoy!/matrixxx.
Author: Matrixxx
00:00
00:17
[bass_rhythm_12_rep. Wav]. Experimented late at night some days ago and got this interesting bass rhythm! sounds like background bass rhythm loops for fashion shows and show-ups. Imagine this being played in the background when a designer shows for example a tough, special made suit. This sound can for example be used in videos, for example tutorials - you name it!. If you enjoyed the sound, please rate, comment, spread! it really helps!. Note: make sure to check out the other matrixxx-sounds! the sound quality is always better when you download the sound(s)! ⛄ made this with bosca ceoil! ⭐. Enjoy!/matrixxx.
Author: Matrixxx
00:00
00:57
[bass_rhythm_32_rep. Wav]. Experimented late at night some days ago and got this interesting bass rhythm! sounds like background bass rhythm loops for fashion shows and show-ups. Imagine this being played in the background when a designer shows for example a tough, special made suit. This sound can for example be used in videos, for example tutorials - you name it!. If you enjoyed the sound, please rate, comment, spread! it really helps!. Note: make sure to check out the other matrixxx-sounds! the sound quality is always better when you download the sound(s)! ⛄ made this with bosca ceoil! ⭐. Enjoy!/matrixxx.
Author: Matrixxx
00:00
00:49
[bass_rhythm_28_rep. Wav]. Experimented late at night some days ago and got this interesting bass rhythm! sounds like background bass rhythm loops for fashion shows and show-ups. Imagine this being played in the background when a designer shows for example a tough, special made suit. This sound can for example be used in videos, for example tutorials - you name it!. If you enjoyed the sound, please rate, comment, spread! it really helps!. Note: make sure to check out the other matrixxx-sounds! the sound quality is always better when you download the sound(s)! ⛄ made this with bosca ceoil! ⭐. Enjoy!/matrixxx.
Author: Matrixxx
00:00
01:29
[bass_rhythm_48_rep. Wav]. Experimented late at night some days ago and got this interesting bass rhythm! sounds like background bass rhythm loops for fashion shows and show-ups. Imagine this being played in the background when a designer shows for example a tough, special made suit. This sound can for example be used in videos, for example tutorials - you name it!. If you enjoyed the sound, please rate, comment, spread! it really helps!. Note: make sure to check out the other matrixxx-sounds! the sound quality is always better when you download the sound(s)! ⛄ made this with bosca ceoil! ⭐. Enjoy!/matrixxx.
Author: Matrixxx
00:00
01:37
[bass_rhythm_52_rep. Wav]. Experimented late at night some days ago and got this interesting bass rhythm! sounds like background bass rhythm loops for fashion shows and show-ups. Imagine this being played in the background when a designer shows for example a tough, special made suit. This sound can for example be used in videos, for example tutorials - you name it!. If you enjoyed the sound, please rate, comment, spread! it really helps!. Note: make sure to check out the other matrixxx-sounds! the sound quality is always better when you download the sound(s)! ⛄ made this with bosca ceoil! ⭐. Enjoy!/matrixxx.
Author: Matrixxx
00:00
00:12
Large river rapids running strongly after winter rain. Recorded approximately fifty feet above water level. The river flows and turns through a narrow, high, partly exposed bedrock canyon which likely amplifies the sound of the rapids. The first nine seconds are unedited. The last two seconds have a fade out applied. In summer you can walk where the centre channel is in winter, so this is a lot of water moving swiftly down the cowichan river to the salish sea. Also see the companion audio posting "river-canyon-waters-edge-bottom-step. Wav" taken below the height of this recording. Recorder: zoom h1 n. Audio quality stereo 48000 hz.
Author: Software
00:00
16:17
The eerily quiet soundscape of a small midwestern town during the covid-19 shutdown. . . This was recorded in town, on a friday night (april 3rd, 2020) at a time when there is almost always more traffic, people and families walking and talking on the sidewalks. . This recording started at 11pm at night. . . What a strange, weird eerie feeling of this track. You will hear a lot of steady wind gusts, dry leaves being moved around by the strong southerly flow. . Equipment: sony pcm-m10 recorder sitting on a small tripod about 3 inches from the ground. . . I had to really crank up the gain on this one because everything was so quiet---almost as if the neighborhood was holding its breath. . . . Hope you enjoy this unique ambiance.
Author: Kvgarlic
00:00
04:16
I was awakened at about 3 am by a local thunderstorm. It was raining softly and lightning came regularly. I recorded over 4 minutes of it from my front porch using an iphone and added recording app, and nothing else. This file is unmodified. A young backpacker is walking along a country road but is kidnapped and bound. When caged, he comes to the realization that his mountain-dwelling captors are practicing cannibals. After escaping his bonds and getting out of the makeshift cage, he silently slips from the campsite into the hills, and after picking his way around rocks and waterfalls and through miles of forest, he is hopelessly lost. He sits and rests, then, alone in darkness and a summer thunderstorm. All he has other than the clothes on his back is a folding pocket knife. When you make it and it wins at cannes, let me know.
Author: Nuncaconoci
00:00
01:32
Disclaimer: this may be loud. Check your volume. This sound is an experiment i did for a short film my crew and i are working on. I wanted to see if i could make a warning effect like the civil defense messages that play on the radio for storms and other emergencies, so i recorded my voice, and pitched it down, equalized it, put it through a high pass filter and lo and behold, i think it sounds pretty darn close. I then coupled it with a couple alert tones from my local noaa / nssl station and this sound was born. This effect could be used for an apocalyptic scenario or civil unrest, riots, looting, or anything else you desire. Not required, but it would be cool to hear if you use it for anything. Enjoy!.
Author: Mnslugger
00:00
00:02
Sounds like you are in a futuristic city terminal. This is of course meant to represent only one of many sounds - it is not complete without other futuristic sounds (if you want to make a futuristic city terminal atmosphere!). This sound reminds me of an old third-person shooter game which was released/published back in the days (year 2000!) -- messiah!. This sound can for example be used in sci-fi games, for example when the player is walking in a huge futuristic city terminal, or is interacting with an ai - you name it!. If you enjoyed the sound, please rate, comment, spread! it really helps!. Note: make sure to check out the other matrixxx-sounds! the sound quality is always better when you download the sound(s)! ⛄. Enjoy!/matrixxx.
Author: Matrixxx
00:00
17:12
A walk through ridley road market in dalston, east london. Lots of people chatting and music playing. As with many markets in london there are lots of languages being spoken. You can hear traders calling out what they're selling. This recording was made using a sound devices mixpre6ii and a stereo pair of fel em172 mics. Low cut on the sd which in basic mode is 80hz (i think). There is some processing to this recording to ‘normalize’ the levels and light eq-ing. I do not require any credit or attribution. If any of these sounds have been of help, and you are feeling charitable, please do consider donating to freesound to help keep the site running (a link is also on the home page). Any donations are greatly appreciated!.
Author: Walthamstow Walker
00:00
00:18
We have the movie "chronicles of riddick" starring vin diesel, and at one point thandie newton walks around him, seeking approval. She gets it, as vin growls, "it's been a long time since i smelled beautiful. " his voice is incomparable, as he exudes a touch of evil with that. Nevertheless i laugh every time i hear it, because it suggests he needs a shower. Try as we might though, we can't quite duplicate it. This was the most recent and possibly best effort. We can't publish vin's voice so here you go. Repeated it once with a bit of reverb. We tried this before and it was moderated and posted. Apologies to the moderator, there was a glitch in the file because i can't get him to say "i" instead of "i've" and i had tried to remove the letter "v. ".
Author: Nuncaconoci
00:00
04:11
A recording made around noon on the edge of a woods located right in the middle of a major midwestern university. Throughout this entire recording, you'll hear the everpresent hum of heating and air conditioner units running. You will also hear faint conversations and laughter of students as they walk to class, faint sounds from a nearby construction site, distant rumble of traffic, the distant droning of an airplane lazily floating through the april sky. From time to time you will also hear the well known "beep. . . Beep. . . . . Beep. . . . " of a piece of heavy equipment backing up. However, despite all of the dominating background of man and his machines, nature comes through. Sincei was sitting on the edge of a fairly large woods which sits in the center of all of the concrete and glass and steel, the sweet singing of birds lasts throughout much of this recording. Equipment used: zoom h4n recorder using the internal stereo microphones set on 180 degrees for the greatest sound capture.
Author: Kvgarlic
00:00
36:37
11/29/2018 - burbank, california. Rain, flooding, and mudslides come to california when a sudden storm hit today. Most people got off the freeways quickly and tried to protect their homes from water damage. This recording was recorded with a zoomh4npro (2018) set at 120 degree field-pattern mode. The zoom was placed on a tripod facing out a 3rd floor window into a dead-end alleyway below. This recording is great atmospheric sound. The water can be heard trickling off spanish tile rooftops and dripping from overflowing terracotta pots. From the passing cars on a distant highway, to the occasional cough of a homeless gentleman walking on the street below, this recording is genuine and clean. Imagine adding that sound of a metal garbage can and a shrieking cat in the night! a sound that's great for sleeping or portraying a dark alley in gotham!. Enjoy!. Christopher c. Courter.
Author: Courter
00:00
00:45
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.
Author: Napro
00:00
03:13
When i was eight years old my older brother told me to go play in traffic. I'm well-known for taking dares and mostly getting away with it, and i did! the only reason it freaked him out was because if i'd gotten hurt, he would have been in trouble. Ah, family. In honor of my stupid bro i decided to capture this sound for you. My friend asked if i'd gotten my recording and i, being myself, complained that although i'd gone out in daylight wearing a halter and short-shorts, no one had even slowed down to look. "take it to the next level," he said. "walk right out on the interstate in the nude. ”i smiled. "think i'd stop traffic?""oh, for sure. Truckers are curious, and most of them have never seen a dumb naked bitch smushed on the concrete, still clutching her iphone. "what fun is life if you can't laugh? coming soon: “fapping with sandpaper. Wav”.
Author: Nuncaconoci
00:00
18:05
It was time to mow the lawn, and it was a beautiful day for mowing. 80 degrees and sunny. Not much breeze at all. For the production: i took the zoom h1 out and set it by the porch about 2 feet up off the ground. Recorded at 96k 24bit. The low cut and agc were disabled. Once recorded, i finished it off with a small amount of airwindows "air" with the 22k tap opened all the way up. For the mower: i used a 21 inch 140 cc "550ex" series briggs & stratton gas walk behind push mower. When i finished mowing my yard, i approached the recorder up to about 2 feet, then i cut the engine. I start it again and let it idle in close proximity for about 8 seconds, still at a distance of about 2 feet, then cut the engine one last time. I'm sure this could potentially come in handy for those outdoor scenes where you could use some distant neighborhood activity or a close-up start/stop. Enjoy!.
Author: Soundstack
00:00
03:14
Binaural* recording of cathedral bells repeating over and over (not looped). Towards the end of the file the bells are heard from a distance (the recording continued while walking away). Recording notes:. 1. Recorded in the field using soundman okm ii binaural microphones with the h1 zoom recorder. Sunday 87/2/2015 mid afternoon. 2. The recording has been left unedited to allow the greatest amount of creative reworking. 3. Recordings are as long as possible for video usage (it's easier to shorten a sound than to expand it). 4. Volume in these series will be left unaltered to allow easier mixing as far as possible. You won't have distant birdsong louder than a closeup door slam. 5. Attribution is appreciated but not necessary. A "thanks" or smiley face in the comments below will be fine. Commercial use is okay. Any concerns, send me a message. *binaural is a recording method that allows surround sound over stereo headphones but over speakers can add depth when mixed with other sounds.
Author: Apinsent
00:00
02:13
Old session file. Check out the session here: https://www. Youtube. Com/watch?v=rk40_lg_vws. Went to the local grocery store to do some stealth recording for my library. This time i promised my self to make my cuts more musical, you guys know, good outside (or) inside recording can be esthetic in many ways. When you walk around and listen carefully, you can hear music everywhere. When i got home i began chopping, an then i realized i could turn this mini recording session into some cool loops as well. I think its a good way of practicing sound design(or anything musically), to just limit your self some times. Basically got the idea when i was studying musique concréte. (concrete music). Could upload the samples if some one is interested?. I used no effects at all, no panning (stereo recordings) or no limiters/compressors. Some of the recording where made by using binaural microphones. I recorded everything with my zoom h4.
Author: Msxp
00:00
03:44
This is the sound of a viking electric lawnmower in action; mowing a piece of lawn. Today i got my audio equipment. This is my first contribution. When i was walking around today to catch sounds, i met a man who was mowing his lawn. I asked him if i could record him while he was mowing his lawn. He agreed and i was allowed to record him mowing. It's a viking electric lawnmower. Description: a man mows the lawn with an electric lawnmower. He drives the lawn mower over a piece of path to the meadow, mows and drives the lawn mower back. At the beginning of the recording, there is a short question asked if he should start now, which i confirm. The recording is unedited. Recording device: zoom h5microphone: xyh-5date: 31 july 2020place: schwanewede, northern germanytime: afternoon, about 4 pm. Weather: 25 °c, sunshine. Hardly any clouds in the sky. Wind from east-northeast, 2 bft.
Author: Eichhoernchensheriff
00:00
00:54
(recorder: zoomh4npro 2018)(microphones: binaural roland cs-10em in-ear monitors). As these are recorded using binaural in-ear mics, i purposefully don't turn my head to keep the sound clean and coming from the same direction. The amtrak pacific surfliner winds it'd way up and down the pacific coast coast. This train is known for spectacular coastal views. Here you can hear this high-speed train come screaming through burbank's downtown station (traffic can be heard on i-5 in the distance). You will hear a security guard walk behind me just before the train comes through. He was one of our trusty transpo officers making sure i wasn't up to no good with my zoomh4n device. Thanks for keeping us all safe officers!. The train makes a pass from right to left and i kept recording so you would have some room-tone at the tail. Enjoy!. Christopher c. Courter.
Author: Courter
00:00
00:01
One friday night, me and my partner were eating dinner, and we both heard a click. She perks up, "what was that?" and i said "the dryer is running, probably something in it" and she goes "no it was inside" (our dryer is like a back door outside porch kinda deal). I noticed it came from inside as well, in the kitchen, but mentally shrugged it off because lasagna. But now i know she heard it inside too, so i walk in the kitchen where the sound came from and don't see anything moving or on. I took note of where my cats were in case anything was being chewed on: one in bed, one on the couch, they aren't chewing on anything or are even near the clicking sound, so back to dinner. About 45 minutes later, dinner is wrapped up, my partner is asleep and i start turning off all the lights. When i turn the kitchen lights off, there is a light that stays on in the corner. I have a car battery recharger there: it has usb ports in case ya lose power, charger cables, and a flashlight attached on the side. . . . Which is on. I turn it off: exact same click that i heard earlier. Do i have a ghost?.
Author: Sweet Niche
00:00
18:07
(recorder: zoomh4npro 2018)(microphones: binaural roland cs-10em in-ear monitors). As these are recorded using binaural in-ear mics, i purposefully don't turn my head to keep the sound clean and coming from the same direction. Wow, this is a long one. . . But a good one. Let me set the scene for this audio because i am a nerd. . . Burbank, california. A large apartment/condominium complex with an open courtyard and a swimming pool and hot tub. Now, for some reason in la, nobody ever seems to actually use pools or hot tubs anymore so it's not hard to get clean audio. So, from beginning to end you will basically hear me turn the automatic shutoff dial on the wall, walk to the hot tub, get in the hot tub, and sit in various positions for extended periods of time. I was alone for the entire experience (wife was at work) and nobody joined. It's very clean audio and safe for all production. Recorded on 11/20/2018 in burbank, ca. Enjoy,. Christopher c. Courter.
Author: Courter
00:00
03:02
passeggiata viennese è una straordinaria canzone strumentale senza voce che crea una sensazione di serenità e tranquillità. La melodia accattivante e il ritmo rilassante sono perfetti per un momento di relax sia da soli che in compagnia. La musica ti invita a camminare per le vie di vienna, con una sensazione di leggerezza e di benessere che ti fa sentire oltre l'anima. L'atmosfera della città è magica, e questa canzone è la colonna sonora perfetta per sentirsi immersi in essa. Lasciati trasportare dalla bellezza di "passeggiata viennese" e goditi un momento di pace e armonia interiore. "passeggiata viennese" is an extraordinary instrumental song without vocals that creates a sense of serenity and tranquility. The catchy melody and relaxing rhythm are perfect for a moment of relaxation both alone and in company. The music invites you to walk through the streets of vienna, with a feeling of lightness and well-being that makes you feel beyond the soul. The atmosphere of the city is magical, and this song is the perfect soundtrack to feel immersed in it. Let yourself be carried away by the beauty of "passeggiata viennese" and enjoy a moment of inner peace and harmony.
Author: Angelorizzo
00:00
02:44
I recorded the last part of my travel to work, the first day after my vacation. Inside the train my recording equipment (soundman digital recorder dr2) generates a lot of digital noise – more than usual. Interesting. Therefore i upload from when the commuter train stops at gothenburg central station and the doors open and i walk away from the station. The digital noise is there all the time but just less audible. In the beginning of the sound file you hear the noise clearly. Don’t buy this little recorder… (it has a sigmatel recording chip. ). In the frequency analysis, and spectral view, i notice peaks at about 800 - 950hz, 7850 - 8350hz and 16100-16450hz. I guess this is part of the digital noise. Tried to eq this away with spectral edit. This did not improve the sound. The noise has a wider spectrum. Tried to download the “latest” firmware at www. Soundman. De. Had to open command prompt and use unzip to extract the files. What?! but the firmware downloader does not detect the “device”. I doubt there is a new firmware anyway. The year for this recording, according to the recorder, is 2002…. The recording starts about 07:50 monday, august 07, 2017. I took 2 seconds from the beginning of this file and used paulstretch. Resulting in a 20second digital noise drone, “dr2 digital noise”,https://freesound. Org/people/gis_sweden/sounds/399075/had a thought that i could use a file like this to cancel out these frequencies from the other file with an inverted digital noise file… but i cant invert frequencies – off course :-d.
Author: Gis Sweden
00:00
05:02
This is one of a set of voices created to be mixed together to form background ambiance for parties and other events. The walla project is the creation of jule hoverson of 19 nocturne boulevard and public domain for all to use without attribution. Script. Party crowd:well, look who's here!i thought you weren't coming?oh, i see. Well, put your coat over there and grab a drink. So, where were we?oh yeah, so my boss says to me i need to work late, and i tell him that if he wants me to work late he's going to have to pay me to work overtime. You think he likes that?what he do?he told me that he can get a college grad to do my job for half the price. Well, i told him- try it!hey, are those snacks fresh?let me have one!mmmm. . . . Tasty!ow!what is this? a snail?i think i chipped a tooth!excuse me. I better go call a dentist!oh no! look who just walked in!can you believe her? wearing a dress like that?that's not his wife. Mmm-hmm. I'm so excited, this is my first time at a soiree {swa-ray} like this!isn't that too too adorable?who's got the glasses?isn’t there anything to drink?i hope you don't mind, but we're going to have to leave early. I'm here! the party can start!i definitely need another one. That was the babysitter. We need to go. [plus - feel free to ad lib anything else you want. ].
Author: Ultrarob
00:00
07:20
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.
Author: Kbclx
00:00
29:21
Calm ambient track. Winter woods / pinewood february 12. 41 pm (noon) in the netherlands near village giersbergen. Bram’s admin request-text and my answer in audio. Hello freesounders,it happens very infrequently that i post requests. However, i have an extraordinary sad reason to do so today. I don't want to go into detail in this public forum, but someone incredibly important and incredibly young in my life and my wife's just passed away. I am thus looking for an extra long recording of a peaceful "forrest ambience" to play during the good-bye ceremony. Something with some birds and perhaps some wind through the leaves,. . . . Currently the ceremony is planned for april 6th so i would need this before then. I know i can look through freesound, but i would like something specifically recorded with this in mind, something we will be able to listen to later as well, remembering this important and sad time in our life. . . Yours in grief,- bram & familywhat you hear;general-noise; soft wind in woods, sometime a bit increasing. A far kid at the edge of hamlet giersbergen. Far hum of the woods. Remark that the far high altitude planes are on a very lo noise level. Off and on craws and woodpeckers. 00. 00-02. 18 clean background-sound02. 18-06. 57 far high altitude plane- 04. 08-05. 42 people passing06. 05- 08. 13 clean background-sound- 07. 15-08. 12 woodpecker08. 16-10. 33 far high altitude plane10. 33-11. 44 clean background-sound- 10. 44-11. 32 (far) woodpeckers11. 33-12. 53 far police serine12. 55-14. 11 clean with some far yelling kids and woodpeckers14. 15-16. 14 far high altitude plane16. 14-26. 11 clean background-sound with some friendly increasing wind gusts- 23. 06-23. 56 woodpeckers- 25. 53-26. 08 woodpecker26. 08-end far high altitude plane and people. More recordings here search: giersbergen. About the area, national park loonse en drunense duinen. (text by irma de potter,ranger of this area) dutch website: https://www. Natuurmonumenten. Nl/natuurgebieden/nationaal-park-loonse-en-drunense-duinen. In the loonse en drunense duinen you will find forest, heathland and especially a lot of sand. It is one of the largest shifting sand areas in western europe. The wind can blow undisturbed in many places, resulting in an ever-changing landscape. By purchasing it in 1921, it has been protected for 100 years and we can still enjoy this brabant sahara today. You can roam freely on the sand plain. So there is plenty of room to explore extensively. Marvel at the submerged trees, enjoy the chirping field crickets and quench your thirst at one of the many cafes or restaurants on the edge of this nature reserve. Walking, cycling or on horseback: it's all possible here. With the wind in your hair and the sand in your shoes. You may even come across the sheep herd. The sheep keep the heath short and eat away saplings. This is how they keep the area open. The loonse en drunense duinen still has 270 hectares of shifting sand. That sand creates rather extreme conditions: the soil is dry and nutrient-poor. The difference in temperature between day and night can be as much as 50 degrees celsius. This ensures a unique flora and fauna. The animals and plants have adapted or feel at home in drought, aridity and temperature fluctuations. Sand sedge and various lichens, for example. And the viviparous lizard, sandpit beetles and sand bees. All species that love sand. In the last ice age, the polar winds blew sand from the north to brabant, where it remained in thick packages. For a long time this sandy plain was covered with primeval forests. Until the fourteenth century the trees were felled by people. They used the wood as fuel. The bare plain was filled with heather, where the farmers grazed their cattle. This intensive grazing and the sod cutting of the soil depleted the soil. This gave the sand free play. For a long time, the sand was a major problem for the residents. Villages and fields threatened to disappear under it. Trees were planted to stop the advancing sand. You can still see the traces of this today: find the submerged trees that only peak above the sand hills with their crowns. Date/time: february 15th tuesday 2017, start 12. 44 pm. Weather: 13c, clear sky, wind se 2-3bft , 1023 hpa. Mic pointed ne. Location; soft-wood-forest giersbergen (drunen), national park “loonse en drunense duinen”, drunen, noord-brabant, netherlands (holland), europe geo 51. 65566 5. 15774. Gear chain: sennheiser mkh30/50 ms, in rycote cyclone small, windjammer > sound devices 302 >tascam dr-100 mk2. Low cut 140hz 6db/octave. Level around -33db for background. Decoded mid-side to stereo.
Author: Klankbeeld
3101 - 3133 of 3,133
/ 63