audio.AudioBuffer — clojure-interop/cljs-web-api 1.0.0

The AudioBuffer interface represents a short audio asset residing memory, created from an audio file using the audio.AudioContext.decodeAudioData() or from raw data using audio.AudioContext.createBuffer(). Once into an AudioBuffer, the audio can then be played by being passed an audio.AudioBufferSourceNode.

constructor cljs

Constructor.

The AudioBuffer constructor of the Web Audio API creates a new audio.AudioBuffer object.

Inherits parameters from the audio.AudioNodeOptions dictionary.

options Options are as follows:

length: The size of the audio buffer in sample-frames. To determine the length to use for a specific number of seconds of audio, use numSeconds * (sampleRate * numberOfChannels). numberOfChannels: The number of channels for the buffer. The default is 1, and all user agents are required to support at least 32 channels. sampleRate: The sample rate in Hz for the buffer. The default is the sample rate of the context used in constructing this object. User agents are required to support sample rates from 8,000 Hz to 96,000 Hz (but are allowed to go farther outside this range).

Deprecated parameters

context A reference to an audio.AudioContext. This parameter was removed from the spec.

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/AudioBuffer

copy-from-channel cljs

(copy-from-channel this destination channel-number start-in-channel)

Method.

The copyFromChannel() method of the audio.AudioBuffer interface the audio sample data from the specified channel of the AudioBuffer a specified web.Float32Array.

myArrayBuffer.copyFromChannel(destination, channelNumber, startInChannel);

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/copyFromChannel

copy-to-channel cljs

(copy-to-channel this source channel-number start-in-channel)

Method.

The copyToChannel() method of the audio.AudioBuffer interface the samples to the specified channel of the AudioBuffer, from source array.

myArrayBuffer.copyToChannel(source, channelNumber, startInChannel);

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/copyToChannel

duration cljs

(duration this)

Property.

A double.

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); myArrayBuffer.duration;

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/duration

get-channel-data cljs

(get-channel-data this & args)

Method.

The getChannelData() method of the audio.AudioBuffer Interface a web.Float32Array containing the PCM data associated with channel, defined by the channel parameter (with 0 representing first channel).

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); var nowBuffering = myArrayBuffer.getChannelData(channel);

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/getChannelData

length cljs

(length this)

Property.

The length property of the audio.AudioBuffer interface returns integer representing the length, in sample-frames, of the PCM stored in the buffer.

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); myArrayBuffer.length;

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/length

number-of-channels cljs

(number-of-channels this)

Property.

An integer.

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); myArrayBuffer.numberOfChannels;

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/numberOfChannels

sample-rate cljs

(sample-rate this)

Property.

A floating-point value indicating the current sample rate of buffers data, in samples per second.

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); myArrayBuffer.sampleRate;

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/sampleRate

set-duration! cljs

(set-duration! this val)

Property.

A double.

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); myArrayBuffer.duration;

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/duration

set-length! cljs

(set-length! this val)

Property.

The length property of the audio.AudioBuffer interface returns integer representing the length, in sample-frames, of the PCM stored in the buffer.

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); myArrayBuffer.length;

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/length

set-number-of-channels! cljs

(set-number-of-channels! this val)

Property.

An integer.

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); myArrayBuffer.numberOfChannels;

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/numberOfChannels

set-sample-rate! cljs

(set-sample-rate! this val)

Property.

A floating-point value indicating the current sample rate of buffers data, in samples per second.

var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); myArrayBuffer.sampleRate;

See also: https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/sampleRate