269 Royalty-Free Audio Tracks for "Frequency Modulated"

Recording taken from a train at about 20 feet away. It was very windy, so consequently, the majority of the track was very much ruined. There is a small click near half-way, caused by a brief release of steam. It might prove annoying if you are planning on looping it. There is also not an even right/left balance throughout, due to my movement to avoid the wind.

Low frequency boom sound, great to hear on subwoofer!.

Microphone tap with ambient sound and mid frequency larsen effects. Recorded with rode ntg2 connected to motu ultralite mk4.

Tried to create an earthquake-sound with sounds i have recorded with my zoom h5.

This is static actually coming from my radio but its plugged into the same cord as my tv & they are very close together. So it's actually interference. Also the proximity of my phone gives more sound (ringy static). That really awesome modulating sound is the moment between clicking the on button & the picture coming on the screen. 2nd try was better after i adjusted the tuner a bit.

Foley sound effect of sub frequency noises;. Sample rate: 48 khzbit depth: 24 bits. Mfma_sonic.

Using a frequency filter by setting its oscillations in variable arrays i was able to make most of these sounds. Also vocoding and feedbacks and feed throughs were happening. Then they were altered in audacity.

A cool and very much slowed down guitar note, recorded not long before my guitar broke (it was old and it cracked). I accidentally made it and i thought it sounded cool i guessit can be used for a jarring moment or a suspenseful sound or something like that. Im sad rn (´。＿。｀).

A long series of granular synthesis glitch-style oddness, could be used for interrupted transmissions, tuning in an old radio, galactic strangeness, and the like.

Tibetan bells and sounds from outer space,a pathway to inner peace. Sounds for relaxation and meditation. 289,4 hz is attributed to mars, 841,68 hz is frequency of synodic moon. Hello,this is the very real horst from duisburg germany with another soundpiece of tibetan singing bowl attributed to planets of our solar system. The sounds of mars/synodic moon, were taken by me on february 25th, 2014 also as a modul used in our soundproject "tibetan bells and sounds from outer space" at youtube-channel :https://www. Youtube. Com/user/taochisoundthe singing bowl has frequency of mars/synodic moon [grundton: mars 289,4 hz / synodic moon 841,68 hz; durchmesser ca. 170 mm; höhe ca. 80 mm; gewicht ca. 790 gramm] and was treated with different mallets [drumsticks]. For more information about frequencies of the planets, please visit:. Http://www. Planetware. De/tune_in/frequenz. Htmlhttp://wiki. Astro. Com/astrowiki/de/planetenton. I share three excerpts of these pieces of 03 min, 07,45 min and variation with stretched sound 3,07 min here for you for your free usefor more information about tibetan singing bowls please visit:http://en. Wikipedia. Org/wiki/singing_bowlthanks for listening andfind true peace on your waythe very real horst. .

Recorded with htc u11 plus mobile and fixed in adobe audition.

Recorded with htc u11 plus mobile and fixed in adobe audition.

Recorded with htc u11 plus mobile and fixed in adobe audition.

Sound / noise of a spraycan, good for hi hat as well.

This is an example of a low-frequency sound often recorded through the hydrophone on the mars cabled observatory - an earthquake. Mars is located on smooth ridge (36. 7125n, 122. 1869w), west of monterey bay at approximately 900 m depth (http://www. Mbari. Org/at-sea/cabled-observatory/). This magnitude 3. 8 earthquake occurred on july 18, 2016 at 05:53:31 utc (usgs data). It was part of a small earthquake swarm along the san andreas fault, approximately 50 miles east of the hydrophone. All quakes in this swarm, with magnitudes as low as 1. 9, were detected by the hydrophone. We have recorded as many as 40 earthquakes within a single day. The original recording was normalized, and speed was increased 5x to make the low frequency sound more audible. Still, subwoofer or headphones are recommended.

Static on the radio as a result of tuning a few channels down on an existing radio station. A voice is heard but their words are undecipherable.

Little soundeffect which reminds of old videogame sounds. If you like this make sure to check my soundcloud: http://soundcloud. Com/beverlyhillsboy cheers!.

A loop made from traffic sounds recorded at the broadway tunnel san francisco ca.

Base layer for sound fx compositions for space, deep sea, volcanoes, and so on.

This is a 2 bar 120 bpm bassline with one dry and one wet play thru. The effect on the wet half is a simple filter morph, raising the cut-off on a low-pass filter thru-out the loop.

A recording made underneath a very busy highway overpass.

Noises from an old gdr tube radio (1966, oberon) when tuning through mw, lw and ukw bands. I tried to separate the different noises and let them be heard for a few seconds so you can edit the noises you need. First there's lw, then mw then a few noises from buttons on the radio then ukw at the end with fragments of some german radio stations in 2021.

This is a part of the longer file "escalator hissing 1".

Sweeping through frequencies of an old analogue radio, german radio stations. Recorded with tascam-dr40.

Sweeping through frequencies with an old analog radio, german radio stations. Recorded with tascam dr-40.

Free! really high annoying white noise. Use it for tv and/or high disturbed signal or whatever. Ripped, recorded, worked and mixed with audacity. (mp3 - 11:39 mins).

Dead air from the fm dial at 107. 3, volume boosted.

Could be used as moving sounds for something large or machine-like. Produced by manipulating this sound: http://www. Freesound. Org/people/soundcollectah/sounds/158479/.

Dl0ksc in cw qso of mar 10th, 2012, at 11. 50 utc on 10116 khz. Stable high frequency but multiple tone - spectrum. Audio frequency changes are due to my tuning of trx to hear multiple tone.

This is taken from (and an answer to) mxsmanic's "trip on métro line 9 in paris, france", at 2:20 exactly: metro on rails through the tunnel, which resonance creates this sound (very familiar to me as i live here). Interesting to notice that the sound's frequency stays around 483hz, which was (in the ancient solfeggio frequency science attributed to pythagoras) the frequency of "opening consciousness".

Created using lmms and the zynaddsubfx plugin with loads of automation on the filters.

Radio noise on short wave. Compilation of sounds.

Recording of the 560 kilohertz frequency of the am radio band. Has a high-pitched singing whine in it.

Noise with a lot of low frequencies.

Interesting interference sound made with analog modular synth.

This is a recording of very low frequency hum of a steel mill. The sample has been low pass filtered. The main frequency is about at 25hz. The sound was recorded some distance away of the steel mill area, where it mixed with other sounds as a constant hum, which could be felt in body too at certain spots.

Noise from a switched-off radio frequency receiver connected to an active recorder.

Electromagnetic signal emanations from the power supply of a landline phone. Recorded with a small pickup coil using a tascam dr-05x.

Dual tone multi-frequency (dtmf) dialing 1-2-3-a-4-5-6-b-7-8-9-c-*-0-#-d in this order. Made with audacity.

I don't remember making this, but i'm pretty sure all i did was run some white noise through bassboost a couple times. It works for earthquakes, distant tiger roars, and other subsonic sounds.

Are there a million of these sounds in film trailers? are there a million of these sounds on freesound? not sure. Started with 100k tone - pitched it down over time - it was too low, so then i pitched the whole file up a bit. Insert to make any slow mo sweeping matrix style scene look even more awesome. . . Or not.

Electronic snare sound made by an opl3 chip #1.

Same as "badass minimoog bass c7" but c4 note is played.

Humming and whistling through my teeth, granulated and highpassed.

A white noise / sine wave noise.

Recording of someone reading psalm 118:1 on a really old radio.

Freezing rain recorded falling underneath a tree at night. Some unfortunate rumble from a nearby airport, could be eq'd out (or left in for something spooky!).

Turning on and off an old tube tv.

Appended series of different recordings of neighbours slamming their doors. Noise reduction and reverb applied.

This is a recording of myself sleeping, beginning ~ 1:00 am local time (~ 3hrs after going to bed) on january 10th, 2020 (which i later discovered was a full moon). I was in the midst of experimenting with recording myself all night long out of curiosity, using a laptop placed near the head of my bed. This particular recording was the only anomalous one (the rest consisting mostly of just breathing or snoring with occasional sleep-talking). This ~2 hour recording has several interesting properties, which make it hard for me to believe that these sounds were actually going on while i was sleeping. On the other hand, i don't have a memory of editing this file if i did. Either way, i find it unsettling. I found the file in oct 2021 while organizing my samples. As far as i can remember, this is the original raw recording. On further inspection, i discovered that it has some additional peculiar properties that make it even harder to believe i could have made it without remembering doing so. The audio spans almost exactly 118min (7080s). There’s a frequency sweep with a cycle-length of 6480ms that repeats throughout the entire recording. Dividing the 118min by 6. 48min (60 cycles) results in 18 parts containing exactly 60 cycles and a remainder of 12 cycles. If you think you know the source of the strange sounds or if you've ever heard anything similar, please let me know in the comments or email me at storyofthelie@protonmail. Com. I collected the most interesting bits into this pack:https://freesound. Org/people/storyofthelie/packs/33653/. Approximate times of weird stuff:. 25min - stretched cough41min - voice & sounds45min - metal hit & voice47min - call response55min - door latch1hr 3min - portal1hr 7min - more portal1hr 11min - open portal1hr 20min - echo voice1hr 23min - echo voice, tones, portal1hr 36min - stomp into breathing1hr 51min - echo voice1hr 53min - cycle tone change into crazy.