[LAU] Higher resolution video with sync'ed stereo audio

hollunder at gmx.at hollunder at gmx.at
Sun Dec 14 07:26:27 EST 2008

On Sat, 13 Dec 2008 22:17:27 -0800
Ken Restivo <ken at restivo.org> wrote:

> I was able to get the high-resolution video clip of Me and My
> Cronies, synced up with the high-resolution audio recorded on the
> Zoom H2, and both to upload to Vimeo.
> They're here:
> http://vimeo.com/2519799
> and here
> http://vimeo.com/2519825
> Funny how the Zoom that they're recorded on is visible in the video,
> but neither were synced up or otherwise connected until I imported
> the tracks in Ardour.
> So that'll solve the "AGC pumping" problem Frank noted. Sound quality
> is much nicer.
> Vimeo is great, but there's one slight annoyance: uploading to it
> requires Flash, which I despise, and which doesn't work with the free
> Flash swfdec package in Debian.
> Process used to sync the video to a Zoom H2 44.1/16 audio file:
> 1) mplayer -ao pcm:file=bad-audio.wav original-video.avi
> 2) mencoder -nosound -ovc copy -o muted-video.avi original-video.avi
> 3) Open an Ardour project and import the high-resolution WAV (from
> the Zoom) and the bad-audio.wav file. 4) Visually and aurally sync up
> the two audios-- easy at extreme +/- zoom levels. 5) Mute the
> "bad-audio" track. 6) Line up the start and end with the start and
> end of the "bad-audio" track (or use regions). Adjust the left/right
> panning to match that of the video if they're reversed (it was in
> this case). 7) Export the audio to highres-audio.wav (or regions). 8)
> lame -cbr 192 -m s -h highres-audio.wav 9) avimerge -o
> synced-video.avi -i muted-video.avi -p highres-audio.wav.mp3 10)
> mencoder synced-video.avi -o synced-video-small.avi -oac copy -ovc
> xvid -xvidopts bitrate=1500 (or do a two-pass version). 11) Find a
> machine with an Adobe Flash player, and upload the video to Vimeo.
> -ken

Well, Vimeo requires flash to watch the movie as well, and it also
does neither work with gnash (flash player alternative) nor with clive
(video downloader). Too bad :/


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