Required when you set Codec to the value AIFF.
Specify Bit depth, in bits per sample, to choose the encoding quality for this audio track.
Specify the number of channels in this output audio track. Valid values are 0, 1, and even numbers up to 64. Choose 0 to follow the number of channels from your input audio. Otherwise, manually choose from 1, 2, 4, 6, and so on, up to 64.
Sample rate in Hz.