Options and their meanings are:
-I Identify program and its version number and exit.
-p Polarity change of input speech first - optimum operation is with POSITIVE pressure changes POSITIVE (default: no inversion of input speech first).
-g gain Set input gain. Value in fact represents a max voltage at a particular point in the system. This is equivalent to the gain control setting on the analogue device, which is usually set with reference to an output lamp (LED) indicating the presence of output pulses. This should be remembered when using pp - thus the gain should be user set with reference to the output Tx or Fx. Default 0.25.
-i item Select input item number.
1.xx Any speech item.
3 Peak-picker Tx.