1,291 Royalty-Free Audio Tracks for "Start"

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.

The coins drop in, there's the high-pitched digital ping to count them, and then the suck of one of those commercial drive-up vacuum hoses starts.

A shower is turned on and a person starts whistling while showering. After a while the shower is turned of and you hear a sound from the shower curtain.

It is a sound that has some pauses that starts a little loud but decreases in volume. It has to be activated by rubbing the broom with a flat surface.

Recording of a slow stroll on utica ave in brooklyn. It starts with gospel music spilling out onto the street.

Mono field recording of the subway - ttc - in toronto, ontario, canada. Station announcements can be heard, but aren't legible. Includes subway chimes. Subway car stops and starts at three stations.

Recorded on iphone 12 of a dual-blade window fan where on of the fans/blades starts off stuck, squeaks, until it catches up to the other.

A short on the fly rhythmic improvisation on ghatam and morsing. It starts out on a duple meter and slowly moves to a triple meter.

A sharp crack of thunder from an approaching storm, so there is no rain or wind in the recording. The kind of strike which starts fires in tinder.

Start sound of mac ii iix iicx iici se/30. Create by dissessemble rom code and use wave table algorithm write c program write wav file. C program below:. /* mac_ii. C *//* boot beep mac ii *//* 2558/09/06 */. #include. #define knumber_samples 30000#define kdelay_note 300#define kwave_table_value 0x30013f10#define ksample_rate 22257 // hz. Void preparewavetable( unsigned short *wavetable, unsigned int value );void updatewavetable( unsigned short *wavetable, unsigned short chiso );void savesound( char *filename, short *sounddata, unsigned int numberframes, unsigned int samplerate );. Int main () {. // ---- wave tableunsigned short wavetable[256];// ---- sound data, stereoshort sounddata[knumber_samples << 1];// ---- increment array (16/16 bit fix point integer)int arrayincrement[] = {3 << 16, 4 << 16, (3 << 16) + 0x2f2, 6 << 16};// ---- prepare wave tablepreparewavetable( wavetable, kwave_table_value );. // ---- array phase (16/16 bit fix point integer)unsigned int arrayphase[] = {0, 0, 0, 0}; // set all = 0. Unsigned int samplenumber = 0;while( samplenumber < knumber_samples ) {. // ---- calculate sampleunsigned int channelleft = 0;unsigned int channelright = 0;unsigned char notenumber = 0;while ( notenumber < 4 ) {// ---- see if should update phase for note, only do if play noteif( samplenumber >= notenumber*kdelay_note ) {// ---- up date phase beforearrayphase[notenumber] += arrayincrement[notenumber];// ---- not let out of range [0; 255]if( arrayphase[notenumber] > 0xff0000 ) // 0xff0000 == 255 << 16arrayphase[notenumber] -= 0xff0000; // return to begin of wave table}unsigned short mauvat = wavetable[arrayphase[notenumber] >> 16];. // ---- add sound componentsif( notenumber < 2 ) // ---- first 2 notes left channelchannelleft += mauvat;else // ---- last 2 notes right channelchannelright += mauvat;// ---- next notenotenumber++;}// ---- save left and right samplessounddata[samplenumber << 1] = (channelleft << 9) - 0x8000; // use << 1 for 16 bitsounddata[(samplenumber << 1) + 1] = (channelright << 9) - 0x8000; // use << 1 for 16 bitupdatewavetable( wavetable, samplenumber & 0xff );samplenumber++;}// ---- save wav filesavesound( "mac ii. Wav", sounddata, samplenumber << 1, ksample_rate ); // multiply 2 because stereo. Return 1;}. Void preparewavetable( unsigned short *wavetable, unsigned int value ) {. // ---- prepare wave tableunsigned short index = 0;unsigned short wavetablevalue = value & 0xff;while( index < 64 ) {wavetable[index] = wavetablevalue; // << 8; // for 16 bitindex++;}. Wavetablevalue = (value >> 8) & 0xff;while( index < 128 ) {wavetable[index] = wavetablevalue; // << 8; // for 16 bitindex++;}. Wavetablevalue = (value >> 16) & 0xff;while( index < 192 ) {wavetable[index] = wavetablevalue; // << 8; // for 16 bitindex++;}wavetablevalue = (value >> 24) & 0xff;while( index < 256 ) {wavetable[index] = wavetablevalue; // << 8; // for 16 bitindex++;}}. Void updatewavetable( unsigned short *wavetable, unsigned short index ) {// ---- get value from wave tableunsigned short value = wavetable[index];// ---- calculate new value for wave tableif( index == 255 ) { // careful at last element of wave tablevalue += wavetable[0];value = (value >> 1);wavetable[0] = value;}else {value += wavetable[index+1];value = (value >> 1);wavetable[index+1] = value;}. }. #pragma mark ---- save wavvoid saveheader( file *filename, unsigned int samplerate );void savesounddatainteger16bit( file *filename, short *sounddata, unsigned int numbersamples );. Void savesound( char *filename, short *sounddata, unsigned int numberframes, unsigned int samplerate ) {// ---- open filefile *file = fopen( filename, "wb" );if( file ) {// ---- "riff"fprintf( file, "riff" );// ---- length sound file - 8unsigned int lengthsoundfile = 32;lengthsoundfile += numberframes << 1; // một không có một mẫu vạt cho kênh trái và phải// ---- save file lengthfputc( (lengthsoundfile) & 0xff, file );fputc( (lengthsoundfile >> 8) & 0xff, file );fputc( (lengthsoundfile >> 16) & 0xff, file );fputc( (lengthsoundfile >> 24) & 0xff, file );// ---- "wave"fprintf( file, "wave" );// ---- save headersaveheader( file, samplerate );// ---- save sound datasavesounddatainteger16bit( file, sounddata, numberframes );// ---- close filefclose( file );}else {printf( "problem save file %s\n", filename );}}. Void saveheader( file *file, unsigned int samplerate ) {// ---- name for header "fmt "fprintf( file, "fmt " );// ---- header lengthfputc( 0x10, file ); // length 16 bytefputc( 0x00, file );fputc( 0x00, file );fputc( 0x00, file );// ---- method for encode, 16 bit pcmfputc( 0x01 & 0xff, file );fputc( (0x00 >> 8) & 0xff, file );// ---- number channels (stereo)fputc( 0x02, file );fputc( 0x00, file );// ---- sample rate (hz)fputc( samplerate & 0xff, file );fputc( (samplerate >> 8) & 0xff, file );fputc( (samplerate >> 16) & 0xff, file );fputc( (samplerate >> 24) & 0xff, file );// ---- number bytes/secondunsigned int numberbytessecond = samplerate << 2; // multiply 4 because short (2 byte) * 2 channelfputc( numberbytessecond & 0xff, file );fputc( (numberbytessecond >> 8) & 0xff, file );fputc( (numberbytessecond >> 16) & 0xff, file );fputc( (numberbytessecond >> 24) & 0xff, file );// ---- byte cho một khung (nên = số lượng mẫu vật * số lượng kênh)// ---- number bytes for sampleunsigned short bytesoneframe = 4; // short (2 byte) * 2 channelunsigned char bitsonesample = 16; // shortfputc( bytesoneframe & 0xff, file );fputc( (bytesoneframe >> 8) & 0xff, file );. Fputc( bitsonesample, file );fputc( 0x00, file );}. Void savesounddatainteger16bit( file *file, short *sounddata, unsigned int numbersamples ) {fprintf( file, "data" );unsigned int datalength = numbersamples << 1; // each sample 2 bytefputc( datalength & 0xff, file );fputc( (datalength >> 8) & 0xff, file );fputc( (datalength >> 16) & 0xff, file );fputc( (datalength >> 24) & 0xff, file );unsigned int sampleindex = 0;while( sampleindex < numbersamples ) {short shortdata = sounddata[sampleindex];fputc( shortdata & 0xff, file );fputc( (shortdata >> 8) & 0xff, file );sampleindex++;}}.

Recorded inside the fireplace while the bird hammered the metal cap on my chimney. He starts and stops a few times, and squawks once.

Robotic computer voice saying self destruct sequence has been activated, please evacuate this facility immediately, then a countdown starts. Created with natural reader text to speech software.

Male sounding "robot"-voice countdown from 10-1. Starts with the sentence "self-destruct in. . . "syncs to 115bpm.

Its night time in cambodia and a dog close by our house starts barkingthis file was recorded with an zoom h1.

Sound of tractor on landfill. Tracktor starts working crushing garbage. Sounds of beeps during reverse gear. Recorded on zoom h4n using røde ntg2 microphone. No post processing.

Group kmm-sample starts out with some noise from hitting a plastic case. After that the case is then slide down a metal pole. Recorded with a zoom h4 handheld recorder, high gain.

Stereo recording of a vintage race car. Engine starts and the engine revs.

You here crickets at night at wadi bani khalid in oman. Suddenly a muezzin starts singing far away and hardly to hear and all crickets stop.

Stereo-recording at home from my external hard-disk drive, power is switched on and the disk starts to spin until it stops.

Busy post work street in singapore. Starts with exit of underground onto street, walking footpath to wait at traffic lights and crossing street with traffic is stopped.

Footsteps lead up to pedestrian crossing, traffic comes to a halt at pelican crossing on king st, beeping starts, lights change, lorry takes off air-brakes and traffic resumes.

Various recordings of a real noise of a small radio. Fm-noise is at the beginning of the file and am starts at 1:08 till the end. Recorded with zoom h4n pro.

Recorded on zoom h4n inside a tent and underneath a nylon tarp during a heavy rain fall. It starts off light, and gets heavy around the 4min mark.

Coming out of the far end of my steve reich obsession, this starts as a pretty simple two violins and piano thing but layers up quite big. I like it quite a lot.

Stereo recording of a birthday sparkler. Starts with a match being struck. Very close up. Recorded on a sony tcd-d3 dat with a sennheiser mke 2002 binaural mic.

You know the sound effect when you bump into a microphone and it starts acting out. I decided to digitally create the effect in audacity! feel free to use!.

While working on a timestretching algorithm something went wrong in the calculations. This little piece of fine glitchyness happened. Wait for somewhere in the middle when it starts really going wrong.

Used h4n for recording. Ambience high park toronto early evening august 19, 2021. Cricket and insect buzzing. Background traffic. Helicopter above starts around 1:21.

Mellow type of lick, good for an intro, sorta blues sorta doom/stoner rock, clean tones, lick starts to build up near the end.

Sounds of the squeaking and creaking wooden floor in goethe's house in weimar, germany. The recording starts with the staircase, then some recordings in rooms, almost without any other human sounds.

A quick recording of two eastern whip birds, the male starts the call and the female answers. Recorded at sunset (7pm) at terrey hills, sydney.

Sound of wooden musical spoons being clapped; recorded in the lab sound booth at confederation college. Sound has a clunky feel to it, as well as starts slowly and progressively gets faster. Recorded at 48,000 hz. .

It starts with a kick and then a bass, similar to an 808 , this is a custom sound if you want to use it for an official song contact me at loamazon123@gmail. Com and we will talk.

Recording from a swamp trail in west alabama in the united states. Starts with a bird cawing then other songbirds come to the fore. Also a constant trill from a singing cricket.

Yuasa yhy-80p steam humidifier is turned on and the inside water starts boiling, after which it's turned off and stops making a strange noise. Recorded with zoom h2n.

A walking recording, starts off with a very noisy garbage truck, then all sorts of other street sounds in east village, nyc. Ends with me entering my apartment building through a double door. Explicit content starts at around -2:00 where a guy wants the *whole* world to hear his drama and he uses some explicit language while i'm waiting to cross the avenue to my building. File also edited a little bit for time.

The couple seconds of crackle before the music starts on an old vinyl record. Recorded through usb into audacity from a sony pslx300usb usb stereo turntable.

Starts with sound of tossing and rolling in bed. Later adds moaning and screaming of a young woman. Recorded for my horror podcast. Mic - rode nt1-a.

Leaves-recording with: dynamic glissando, frecuency glissando, panning and acceleration sounding at the same time with a noise. Ends with a white noise which starts at 0 hz and grows until 7500 hz and go back again at 0 hz.

A quiet high speed train starts from a stand-still and gradually gathers speed. Recorded from interior.

A man wakes up in a strange dark place and starts asking questions. Good for haunted house scene possibly. . . Use this accompanied quickly by the sound of a chainsaw maybe?.

Gas boiler in my kitchen starts up, you can hear the piezo ignition inflaming the gas and the subsequent burning gas. This version is processed (compressor, eq). Recording by a zoom h2n.

Running finger along the rim of a wineglass, producing a c#. Starts with a slow build, and ends abruptly when the glass is silenced by grabbing it. Recorded with zoom h4n, built-in mics.

A thunderstorm rolling through. Starts off with heavy rain and then lightens up. Some cars drive by and at one point a group of people on bicycles makes their way past.

Stereo recording of a honda element idling made from the inside of the car. Starts with the windows closed. Windows open halfway through the recording.

Power switch is pressed, computer starts up, plays a sound effect through the internal speaker, power switch is pressed again and the computer shuts down. Recorded with a zoom h4n, placed inside the computer.

The sound of a coffee-machine (krups©) for a famous brand of espresso coffee in capsules. Starts with switching on the machine to end of process. Recorded by me on a tascam dr-05 16bits 44. 1khz.

Train rides, stops, doors open, people come in, doors close, train starts moving again. Recorded in a renfe train in barcelona spain with a tascam dr 40.

One set of footsteps, wearing dress shoes (loud heel, but not necessarily high heel) in a quiet corridor. No external noise, low room tone. Also starts and stops. Good for adding reverb for an echoey feel.

A very noisy intersection with buses and cars in rio de janeiro, brazil. It's the moment where the lights change, one street stops and the other starts to move. Recorded with an iphone, converted to aiff.