Wave_write.setnchannels(n) Set the number of channels.

oss_audio_device.mode The I/O mode for the file, either "r", "rw", or "w".

audioop.lin2ulaw(fragment, width) Convert samples in the audio fragment to u-LAW encoding and return this as a bytes object

audioop.findfactor(fragment, reference) Return a factor F such that rms(add(fragment, mul(reference, -F)))

aifc.setcomptype(type, name) Specify the compression type. If not specified, the audio data will not be compressed. In AIFF

audioop.add(fragment1, fragment2, width) Return a fragment which is the addition of the two samples passed as parameters. width

aifc.close() Close the AIFF file. After calling this method, the object can no longer be used.

audioop.maxpp(fragment, width) Return the maximum peak-peak value in the sound fragment.

colorsys.hsv_to_rgb(h, s, v) Convert the color from HSV coordinates to RGB coordinates.

oss_audio_device.fileno() Return the file descriptor associated with the device.