PP

NAME

pp - peak picker (Howard D.M. - PhD thesis, London University, 1985)

SYNOPSIS

pp (-I) (-p) (-g gain) (-i item) dbase_file

DESCRIPTION

pp is a speech fundamental frequency estimation algorithm, which operates in the time domain. It has evolved from patient prostheses developed in the EPI group for the profoundly and the totally deaf.

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.

INPUT ITEMS

1.xx Any speech item.

OUTPUT ITEMS

3 Peak-picker Tx.

VERSION/AUTHOR

2.1 - David Howard
3.0 - Mark Huckvale

SEE ALSO

tx, cep, gr, sift (ils).

PROPOSED IMPROVEMENTS

Automatic input speech polarity detection if (-P) not set. Automatic setting of an appropriate gain if (-G) not set.

BUGS

When you find them, you know who to call!
Fri Jul 09 14:54:35 2004