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

audioop.ratecv(fragment, width, nchannels, inrate, outrate, state[, weightA[, weightB]]) Convert the frame rate of the input

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

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

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 '

Wave_read.close() Close the stream if it was opened by wave, and make the instance unusable. This is called automatically

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 '

Wave_read.getparams() Returns a

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