FXAC
NAME
fxac - estimate fx from sp using autocorrelation
SYNOPSIS
fxac
(-i item) (-d) (-l lofreq) (-h hifreq) (-w wintime) (-s steptime) file
DESCRIPTION
fxac
estimates FX from a speech or Laryngograph waveform by the following process: (i) cubing waveform
sample values, (ii) autocorrelation, and (iii) voicing & fundamental frequency
decision. The output FX is estimated
in 25ms windows with a repetition time of 5ms.
Options
and their meanings are:
-I
Identify program and exit.
-i item
Select input item number and type.
-d
Output autocorrelation function as DISPLAY item.
-l lofreq
Set lowest Fx value used in search. Default 60Hz.
-h lofreq
Set highest Fx value used in search. Default 500Hz;
-w wintime
Specify analysis windowsize in seconds. Default 0.03s;
-s steptime
Specify analysis window stepsize in seconds. Default 0.005s;
INPUT ITEMS
1.xx
Speech waveform.
2.xx
Laryngograph waveform.
OUTPUT ITEMS
4
FX estimate by autocorrelation.
9
Autocorrelation display.
VERSION/AUTHOR
2.2 - Mark Huckvale.
SEE ALSO
fxcep(SFS1)
Wed Jul 17 22:31:34 2013