The output file can be used by the convolve operator to perform Fast Convolution between an input signal and the original impulse response.
Analysis is conditioned by the flags below.
A space is optional between the flag and its argument. This will over-ride the srate of the soundfile header, which otherwise applies. If neither is present, the default is 10000. If omitted, the default is to process all channels. If a value is given, only the selected channel will be processed.