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avisync(1)							    avisync(1)

NAME
       avisync - adjust audio synchronisation

SYNOPSIS
       avisync [ -o file -i file -q -n num -b num -a track -f commentfile ]

COPYRIGHT
       avisync is Copyright (C) by Thomas Oestreich.

DESCRIPTION
       avisync shift audio on frame basis.

OPTIONS
       -o name
	      Specify the name of the output file.

       -i file
	      Specify the name of the input file.

       -q     be less verbose.

       -n count
	      shift audio by count frames. If count is positive, audio starts
	      with audio frame count at the beginning of the AVI-file. If
	      count is negative, audio is prepended count padding frames.

       -a track
	      Specify the number of the audio channel to shift.

       -b num Specify if avisync should write an VBR mp3 header into the AVI
	      file. Default is 1 because it does not hurt. num is either 1 or
	      0.

       -f commentfile
	      Read AVI tombstone data for header comments from commentfile.
	      See /docs/avi_comments.txt for a sample.

EXAMPLES
       The command

       avisync -i my_file1.avi -o out.avi -n -10

       puts 10 audio frames at the beginning of the AVI-file.

       E.g. if the audio is delayed about 200 ms (0.2 seconds) and you're
       working with a 25 frames per second AVI-File, you need to shift the
       audio 200/40 = 5 frames since one frame is 40 ms long.

AUTHORS
       avisync was written by Thomas Oestreich
       <ostreich@theorie.physik.uni-goettingen.de> with contributions from
       many others.  See AUTHORS for details.

SEE ALSO
       aviindex(1), avifix(1), avimerge(1), avisplit(1), tccat(1), tcde‐
       code(1), tcdemux(1), tcextract(1), tcprobe(1), tcscan(1), transcode(1)

avisync(1)			26th June 2003			    avisync(1)

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