audioop.lin2alaw(fragment, width) Convert samples in the audio fragment to a-LAW encoding and return this as a bytes object

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

aifc.writeframes(data) Write data to the output file. This method can only be called after the audio file parameters have been

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

Wave_write.setparams(tuple) The tuple should be (nchannels, sampwidth, framerate, nframes, comptype, compname)

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

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

oss_mixer_device.reccontrols() Returns a bitmask specifying the mixer controls that may be used to record. See the code example

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

aifc.getparams() Returns a