NAME¶
lsconv - a program does Log Sweep convolution.
SYNOPSIS¶
lsconv [
parameters] sweepfile inversefile
Usage: lsconv sweepfile inversefile outfile [refsweep mingain [dlstart]]
Example: lsconv sweep.pcm inverse.pcm impulse.pcm refchannel.pcm 0.1 0.8
DESCRIPTION¶
This manual page documents briefly the
lsconv program. This manual page
was written for the Debian distribution because the original program does not
have a manual page.
lsconv is program to perform accurate time aligned impulse response
measurements.
lsconv is based on the log sweep method for impulse response measurement,
which is one of the most accurate, especially for acoustic measurements. This
method is based on a special signal, which is a logarithmic sinusoidal sweep,
that need to be reproduced through the system under test, and an inverse
filter, which, when convolved with the measured log sweep, gives back the
impulse response of the system.
Files used by
lsconv must be in the raw 32 bit floating point format. Use
for e.g. sox program for converting if needed.
PARAMETERS¶
sweepfile: sweep file name
inversefile: inverse sweep file name
outfile: output impulse response file
refsweep: reference channel sweep file name
mingain: min gain for reference channel inversion
dlstart: dip limiting start for reference channel inversion
Refer to html documentation for more details.
SEE ALSO¶
sox(1).
AUTHOR¶
This manual page was written by Jaromír Mikeš
<mira.mikes@seznam.cz>, for the Debian project (but may be used by
others).