man lpanal (Commandes) - linear predictive analysis for the Csound lp generators

NAME

lpanal - linear predictive analysis for the Csound lp generators

SYNOPSIS

lpanal [options] infile outfile

csound -U lpanal [options] infile outfile

DESCRIPTION

lpanal performs both lpc and pitch-tracking analysis on a soundfile to produce a time-ordered sequence of frames of control information. This output is suitable for Csound resynthesis using the lp generators.

OPTIONS

-a
Use alternate storage format - filter poles values rather than the usual filter coefficient files.
-s<srate>
Override the soundfile header sampling rate. If neither is specified, the default is 10000.
-c<channel>
Default is 1.
-b<begin>
Beginning time, in seconds. Default is 0.0.
-d<duration>
Duration, in seconds. Default is 0.0 (the entire file).
-p<poles>
Number of poles. Default is 34, maximum is 50.
-h<hopsize>
Hop size, in samples, between frames of analysis. Default 200, maximum 500.

fps = srate/hopsize

analysis framesize = hopsize * 2 samples
-C<string>
Comments field of the lpfile header.
-P<mincps>
The lowest frequency, in Hz, of pitch tracking. -P0 means no pitch tracking. Default is 70.
-Q<maxcps>
Maximum frequency, in Hz, of pitch tracking. Default is 200. The narrower the pitch range is, the more accurate the pitch estimate will be.
-v[012]
Verbosity level. 0: none (default), 1: verbose, 2: debug.

SEE ALSO

csound(1), hetro(1), pvanal(1), cvanal(1).

Csound is documented fully by The Public Csound Manual, available at http://www.lakewoodsound.com/csound/

Csound is also documented by The Alternative Csound Reference Manual, available at http://kevindumpscore.com/docs/csound-manual/

AUTHOR

This manual page was written by Hans Fugal <hans@fugal.net>, for the Debian project (but may be used by others).