33.4 Audio Recorder

The following methods are used to create and use audiorecorder objects. These objects can be used to record audio data from various devices available to the system. You can use convenient methods to retrieve that data or audioplayer objects created from that data. Methods for blocking and non-blocking recording, pausing and resuming recording and much more is available.

: recorder = audiorecorder ()
: recorder = audiorecorder (fs, nbits, nchannels)
: recorder = audiorecorder (fs, nbits, nchannels, id)

Create an audiorecorder object recording 8-bit mono audio at 8000 Hz sample rate.

The optional arguments fs, nbits, nchannels, and id specify the sample rate, number of bits per sample, number of channels, and recording device ID, respectively. Device IDs may be found using the audiodevinfo function.

The list of actions for an audiorecorder object are shown below. All methods require an audiorecorder object as the first argument.

getRead audiorecorder property values
getaudiodataReturn audio data as a numeric matrix
getplayerReturn audioplayer loaded with data from audiorecorder
isrecordingReturn true if audiorecorder is recording
pausePause recording
playPlay audio stored in audiorecorder object
recordRecord audio in audiorecorder object w/o blocking
recordblockingRecord audio in audiorecorder object
resumeResume recording after pause
setWrite audiorecorder property values
stopStop recording

See also: @audiorecorder/get, @audiorecorder/getaudiodata, @audiorecorder/getplayer, @audiorecorder/isrecording, @audiorecorder/pause, @audiorecorder/play, @audiorecorder/record, @audiorecorder/recordblocking, @audioplayer/resume, @audiorecorder/set, @audiorecorder/stop, audiodevinfo, @audioplayer/audioplayer, record.