-I Identify program and exit.
-l lofreq Select centre frequency of lowest channel. Default 50Hz.
-h hifreq Select centre frequency of highest channel. Default 5000Hz.
-w chanwidth Select width of channels in ERBs. Default 2 erb.
-c Select output of hair cell. Default is output of filters.
-s srate Select output as energy spectrum at specified frame rate. Filter output is rectified, windowed and averaged into frames.
-d srate Select output as spectrographic picture at specified frame rate. Filter output is rectified, windowed and averaged into frames and the top 50dB expressed as grey scale.
SP Any speech item.
SP One waveform per filter channel.
CO (Optional) Coefficient record of power spectrum.