1,920 Royalty-Free Audio Tracks for "Frequency Modulation Synthesizer"

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/.

Dead air static with a "singing" hum at 103. 3 on the fm radio dial, with the volume boosted and slight effect added.

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".

Buzzy patch of static from the am band of the radio dial. Slight flipping of the dial through the area adjusts the sound.

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.

Experimentation with the harmmod m4l plugin in ableton live. No effects or post-processing was applied to the sound except normalization.

My, rather extreme, attempt at creating a super-square sound on the d50. Only single notes played and, as always, no external effects and direct recording without overdubs (stereo 16 bit, 44. 1 khz).

One of many possibilities of zynaddsubfx.

Pulsewidth modulated analogue roland synth bassline.

Volca fm ambient sound.

Korg volca fm.

Preset 24 dimensional sawtooth, lead sample of alphatron oscillion, a polyphonic subtractive synthesizer in vst, vst3 and audio unit plugin format for windows and mac.

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.

Buzzy patch of static from the am radio dial slowed and with a filter and some digital reverb.

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.

911 dtmf dialing sound.

Sounds like it was a morse code sent by a human.

Radio motorola.

A sounds made with a microwave. High pitched sound looped 15 times. Enjoy!.

Noise processed with various audacity effects until it looked like stereotypical lips in the soundwave view. Http://farm9. Staticflickr. Com/8070/8213683889_517a10ef52_o. Pngon flac and ogg vorbis audio file formats. Contact me if you have interest in specific sounds for open source or commercial purpose.

Noise processed with various audacity effects until it felt like it could influence brain functions. Http://farm9. Staticflickr. Com/8070/8213683889_517a10ef52_o. Pngon flac and ogg vorbis audio file formats. Contact me if you have interest in specific sounds for open source or commercial purpose.

An artistic experiment searching for sound emissions and the limit of human hearing. Composed of infrasonic material that have a lot of harmonic distortion. Humans will be able to identify tones as low as 12hz. From 1000 hz the auditory system decreases. Natural and human produced infrasonic sounds is anywhere, all the time. The artistic idea was to use background noises, signal fidelity, harmonic distortion, low-frequency in order to foster a soundscape of infrasound that travels through space. Made for project that was never released. Think somebody might enjoy or use it.

I've scanned the radio frequencies with an old radio and recorded with my tascam dr-05 via the headphone jack. You can hear some weird looping patterns and sound fragments from random radio stations.

A recording of a synthesized harpsichord instrument recorded from my yamaha portasound ps-3.

In countries like japan and china the cherry tree blossom is known as the ultimate expression of beauty in nature. Also, the cherry tree blossom symbolizes the beauty of poetry, dance, music and love.

In hinduism and its many derived views of life, there are a number of "realms", each with their own forms of consciousness. The oldest of these is the realm of the minerals, the stones. This is followed by plants, animals, humans, angels and gods. Each kingdom is divided into layers, in the human realm the "caste's" or social layers. Hindus believe that through good works you can be born in a higher caste or even realm in the next life. Among the people who belong to the caste of brahmans, the priestly caste, it happens that some have memories of many past lives. This track represents the connection between the heartbeat of a brahman priest during his meditation and his energetic vibrations, long time ago, as crystal. He discovers that time is an illusion and that all his lives are layers one on another creating a building, the shape of his eternal existence. He has yet to build further but is well on his way. Right now, he should not be proud, or in the next life he will be certainly no angel but falls back to a previous level.

This track reflects how the brahman from the track crystal heartbeat continues his meditation. He discovers that the created connection is a gate between this world and the world of crystals. He is one little step closer to fully experience the infinite "unity of things", "the stream of life that flows in and through all things. ".

Who has ever experienced complete inner peace and tranquility knows the feeling of peace that remains for days in your system. Of course there are always those impressions around you that distract you from that. But by regularly absorbing that silence, that tranquility, this peace grows. Eventually the feeling of peace is ruling and there is only just an occasional little storm. That keeps you alert, so that is good as well. So, peace at last.