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Defines the audio data characteristics that will be recorded in the AsRecorder
The samples recorded will be recuperated by a callback in the form of a character string, each of size '_size_', given in milliseconds.

AsRecorder asRecorderInit ( AsRecorder _recorder_ fun [AsRecorder u0 S] u1 _callback_ u0 _user_ I _size_ I _channels_ I _frequency _ I _resolution_ I _threshold_ I _flag_ )

_recorder_
	Object of type AsRecorder
_callback_
	Recording callback providing the recorded audio data. The additional parameter corresponds to the audio data.
_user_
	User parameter.
_size_
	Size of audio data transmitted to the callback in milliseconds.
_channels_
	Number of channels, 1 for mono, 2 for stereo.
_frequency _
	Sampling frequency between 5000 Hz and 48000 Hz.
_resolution_
	Sampling rate in bits, 8 or 16.
_threshold_
	Threshold volume for silence detection, between 0 (no silence detection) and 100. If the volume of the recorded sound is below the threshold volume, it will not be transmitted to the callback.
_flag_
	Unused, should be set to nil

The AsRecorder given as a parameter, or nil in case of a failure.

If the AsRecorder had previously been used, it will be reinitialized upon using this method.