audio-recorder-polyfill 0.4.1

`MediaRecorder (stream, config)`

Audio Recorder with MediaRecorder API.

parameter	type	description
`stream`	MediaStream	The audio stream to record.
`config`	any = `null`

Examples

navigator.mediaDevices.getUserMedia({ audio: true }).then(stream => {
  let recorder = new MediaRecorder(stream)
})

Static Members

`isTypeSupported (mimeType)`

Returns true if the MIME type specified is one the polyfill can record.

This polyfill supports audio/wav and audio/mpeg.

parameter	type	description
`mimeType`	string	The mimeType to check.

Returns

boolean : true on audio/wav and audio/mpeg MIME type.

`notSupported ()`

true if MediaRecorder can not be polyfilled in the current browser.

Type: boolean

Examples

if (MediaRecorder.notSupported) {
  showWarning('Audio recording is not supported in this browser')
}

`encoder ()`

Converts RAW audio buffer to compressed audio files. It will be loaded to Web Worker. By default, WAVE encoder will be used.

Type: function

Examples

MediaRecorder.prototype.mimeType = 'audio/ogg'
MediaRecorder.encoder = oggEncoder

Instance Members

`stream ()`

The MediaStream passed into the constructor.

Type: MediaStream

`state ()`

The current state of recording process.

Type: ("inactive" | "recording" | "paused")

`start (timeslice?)`

Begins recording media.

parameter	type	description
`timeslice`	number?	The milliseconds to record into each `Blob` . If this parameter isn’t included, single `Blob` will be recorded.

Returns

undefined :

Examples

recordButton.addEventListener('click', () => {
  recorder.start()
})

`stop ()`

Stop media capture and raise dataavailable event with recorded data.

Returns

undefined :

Examples

finishButton.addEventListener('click', () => {
  recorder.stop()
})

`pause ()`

Pauses recording of media streams.

Returns

undefined :

Examples

pauseButton.addEventListener('click', () => {
  recorder.pause()
})

`resume ()`

Resumes media recording when it has been previously paused.

Returns

undefined :

Examples

resumeButton.addEventListener('click', () => {
  recorder.resume()
})

`requestData ()`

Raise a dataavailable event containing the captured media.

Returns

undefined :

Examples

this.on('nextData', () => {
  recorder.requestData()
})

`addEventListener (args, type, listener)`

Add listener for specified event type.

parameter	type	description
`args`	...any
`type`	(`"start"` \| `"stop"` \| `"pause"` \| `"resume"` \| `"dataavailable"` \| `"error"`)	Event type.
`listener`	function	The listener function.

Returns

undefined :

Examples

recorder.addEventListener('dataavailable', e => {
  audio.src = URL.createObjectURL(e.data)
})

`removeEventListener (args, type, listener)`

Remove event listener.

parameter	type	description
`args`	...any
`type`	(`"start"` \| `"stop"` \| `"pause"` \| `"resume"` \| `"dataavailable"` \| `"error"`)	Event type.
`listener`	function	The same function used in `addEventListener` .

Returns

undefined :

`dispatchEvent (args, event)`

Calls each of the listeners registered for a given event.

parameter	type	description
`args`	...any
`event`	Event	The event object.

Returns

boolean : Is event was no canceled by any listener.

`mimeType ()`

The MIME type that is being used for recording.

Type: string