audioop.lin2adpcm(fragment, width, state) Convert samples to 4 bit Intel/DVI ADPCM encoding. ADPCM coding is an adaptive coding

Wave_read.getparams() Returns a

audioop.mul(fragment, width, factor) Return a fragment that has all samples in the original fragment multiplied by the floating-point

aifc.aifc() Create an AIFF-C file. The default is that an AIFF-C file is created, unless the name of the file ends in '

oss_audio_device.post() Tell the driver that there is likely to be a pause in the output, making it possible for the device

oss_mixer_device.controls() This method returns a bitmask specifying the available mixer controls (“Control” being a specific

audioop.rms(fragment, width) Return the root-mean-square of the fragment, i.e. sqrt(sum(S_i^2)/n).

aifc.tell() Return the current frame number.

aifc.getnframes() Return the number of audio frames in the file.

aifc.aiff() Create an AIFF file. The default is that an AIFF-C file is created, unless the name of the file ends in '