AudioContextOptions.sampleRate - Web APIs
the audiocontextoptions dictionary (used when instantiating an audiocontext) may contain a property named samplerate, which indicates the sample rate to use for the new context.
... the audiocontextoptions dictionary (used when instantiating an audiocontext) may contain a property named samplerate, which indicates the sample rate to use for the new context.
...ns dictionary (used when instantiating an audiocontext) may contain a property named samplerate, which indicates the sample rate to use for the new context.
...And 5 more matches

AudioBuffer.sampleRate - Web APIs
the samplerate property of the audiobuffer interface returns a float representing the sample rate, in samples per second, of the pcm data stored in the buffer.
... the samplerate property of the audiobuffer interface returns a float representing the sample rate, in samples per second, of the pcm data stored in the buffer.
... the samplerate property of the audiobuffer interface returns a float representing the sample rate, in samples per second, of the pcm data stored in the buffer.
...And 3 more matches

MediaTrackSettings.sampleRate - Web APIs
the mediatracksettings dictionary's samplerate property is an integer indicating how many audio samples per second the mediastreamtrack is currently configured for.
... the mediatracksettings dictionary's samplerate property is an integer indicating how many audio samples per second the mediastreamtrack is currently configured for.
...or.
...And 3 more matches

MediaTrackSupportedConstraints.sampleRate - Web APIs
the mediatracksupportedconstraints dictionary's samplerate property is a read-only boolean value which is present (and set to true) in the object returned by mediadevices.getsupportedconstraints() if and only if the user agent supports the samplerate constraint.
...ean value which is present (and set to true) in the object returned by mediadevices.getsupportedconstraints() if and only if the user agent supports the samplerate constraint.
...rned by mediadevices.getsupportedconstraints() if and only if the user agent supports the samplerate constraint.
...And 3 more matches

BaseAudioContext.sampleRate - Web APIs
the samplerate property of the baseaudiocontext interface returns a floating point number representing the sample rate, in samples per second, used by all nodes in this audio context.
... the samplerate property of the baseaudiocontext interface returns a floating point number representing the sample rate, in samples per second, used by all nodes in this audio context.
...by all nodes in this audio context.
...And 2 more matches

MediaTrackConstraints.sampleRate - Web APIs
the mediatrackconstraints dictionary's samplerate property is a constrainlong describing the requested or mandatory constraints placed upon the value of the samplerate constrainable property.
... the mediatrackconstraints dictionary's samplerate property is a constrainlong describing the requested or mandatory constraints placed upon the value of the samplerate constrainable property.
...ue of the samplerate constrainable property.
...And 2 more matches

Index - Web APIs
iobuffer.length api, audiobuffer, property, reference, web audio api, length the length property of the audiobuffer interface returns an integer representing the length, in sample-frames, of the pcm data stored in the buffer.
...api, length the length property of the audiobuffer interface returns an integer representing the length, in sample-frames, of the pcm data stored in the buffer.
..., web audio, web audio api, latency the audiocontextlatencycategory type is an enumerated set of strings which are used to select one of a number of default values for acceptable maximum latency of an audio context.
...And 18 more matches

Creating a Web based tone generator - Archive of obsolete content
d so that we can fill a 500 ms buffer of audio samples.
...te example</title> </head> <body> <input type="text" size="4" id="freq" value="440"><label for="hz">hz</label> <button onclick="start()">play</button> <button onclick="stop()">stop</button> <script type="text/javascript"> function audiodatadestination(samplerate, readfn) { // initialize the audio output.
...value="440"><label for="hz">hz</label> <button onclick="start()">play</button> <button onclick="stop()">stop</button> <script type="text/javascript"> function audiodatadestination(samplerate, readfn) { // initialize the audio output.
...And 3 more matches

Introducing the Audio API extension - Archive of obsolete content
escribes a non-standard experimental api.
...tracts the data from an audio element: <!doctype html> <html> <head> <title>javascript metadata example</title> </head> <body> <audio id="audio-element" src="song.ogg" controls="true" style="width: 512px;"> </audio> <script> function loadedmetadata() { channels = audio.mozchannels; rate = audio.mozsamplerate; framebufferlength = audio.mozframebufferlength; } var audio = document.getelementbyid('audio-element'); audio.addeventlistener('loadedmetadata', loadedmetadata, false); </script> </body> </html> the mozaudioavailable event as the audio is played, sample data is made available to the audio layer and the audio buffer (size defined in mozframebufferlength) gets f...
...ent: <!doctype html> <html> <head> <title>javascript visualization example</title> </head> <body> <audio id="audio-element" src="revolve.ogg" controls="true" style="width: 512px;"> </audio> <pre id="raw">hello</pre> <script> function loadedmetadata() { channels = audio.mozchannels; rate = audio.mozsamplerate; framebufferlength = audio.mozframebufferlength; } function audioavailable(event) { var framebuffer = event.framebuffer; var t = event.time; var text = "samples at: " + t + "\n"; text += framebuffer[0] + " " + framebuffer[1]; raw.innerhtml = text; } var raw = document.getelementbyid('raw'); var audio = document...
...And 3 more matches

BaseAudioContext.createBuffer() - Web APIs
ing other code execution.
...integer representing the number of channels this buffer should have.
...senting the number of channels this buffer should have.
...And 3 more matches

AudioContext() - Web APIs
ncyhint optional the type of playback that the context will be used for, as a value from the audiocontextlatencycategory enum or a double-precision floating-point value indicating the preferred maximum latency of the context in seconds.
...e of playback that the context will be used for, as a value from the audiocontextlatencycategory enum or a double-precision floating-point value indicating the preferred maximum latency of the context in seconds.
...ue latency after creating the context.
...throws a typeerror exception with the message "the provided value '...' is not a valid enum value of type audiocontextlatencycategory".

BiquadFilterNode.getFrequencyResponse() - Web APIs
encyarray, magresponseoutput, phaseresponseoutput); parameters frequencyarray a float32array containing an array of frequencies, specified in hertz, which you want to filter.
...seoutput, phaseresponseoutput); parameters frequencyarray a float32array containing an array of frequencies, specified in hertz, which you want to filter.
...ue is outside the range 0.0 to samplerate/2 (where samplerate is the sample rate of the audiocontext), the corresponding value in this array is nan.
...nge 0.0 to samplerate/2 (where samplerate is the sample rate of the audiocontext), the corresponding value in this array is nan.

OfflineAudioContext.OfflineAudioContext() - Web APIs
the offlineaudiocontext() constructor—part of the web audio api—creates and returns a new offlineaudiocontext object instance, which can then be used to render audio to an audiobuffer rather than to an audio output device.
...ndividual parameters are the same.
...e number of channels the resulting audiobuffer should have.
...frames, samples and channels from our basic concepts guide.

Advanced techniques: Creating and sequencing audio - Web APIs
se numbers into, however, one that the web audio api understands.
...tands.
...to a buffer (we'll get to that later on in the tutorial), or you can create an empty buffer and fill it with your own data.
...; durcontrol.addeventlistener('input', function() { noiseduration = number(this.value); }, false); let bandhz = 1000; const bandcontrol = document.queryselector('#band'); bandcontrol.addeventlistener('input', function() { bandhz = number(this.value); }, false); the final playnoise() function here's the entire playnoise() function: function playnoise() { const buffersize = audioctx.samplerate * noiseduration; // set the time of the note const buffer = audioctx.createbuffer(1, buffersize, audioctx.samplerate); // create an empty buffer let data = buffer.getchanneldata(0); // get data // fill the buffer with noise for (let i = 0; i < buffersize; i++) { data[i] = math.random() * 2 - 1; } // create a buffer source for our created data let noise = audi...

AudioBuffer() - Web APIs
the audiobuffer constructor of the web audio api creates a new audiobuffer object.
...nherits parameters from the audionodeoptions dictionary.
...to 96,000 hz (but are allowed to go farther outside this range).