Subject: Re: [ecasound] mixing
From: Kai Vehmanen (email@example.com)
Date: Wed Apr 05 2000 - 21:21:30 EEST
On Wed, 5 Apr 2000, Jan Stary wrote:
> I recorded files bass.wav and guitar.wav, both 16,1,44100.
> Now I want to mix them together into a (new) file song.wav
> (16,2,44100) so that bass.wav starts playing at 0.0sec of song.wav with
> -epp:30 and guitar.wav starts playing at 1.7sec of song.wav, in the left
> Do I have to convert bass/guit to stereo (-erc:) before I can
> mix it into some file with -epp: effect? It worked OK if I made huge
Yep, you need to use -erc before -epp or else the second channel
is always silent.
> ecasound -f:16,1,44100 -i:bass.wav [?-epp:?] -f:16,2,44100 -o song.wav
> [?-y: -epp:?]
Well, mixing is no problem, but offsetting the guitar track is bit
of a problem without ewf (only in 1.7.x). But it's possible:
ecasound -i guitar.wav -erc:1,2 -epp:70 -f:16,2,44100 -o song.wav -y:1.7
ecasound -a:1 -i song.wav \
-a:2 -i bass.wav -erc:1,2 -epp:30 \
-a:1,2 -o song.wav
If this doesn't work, try updating to 1.7.4d11. There were some -erc,
-erm and -epp related bugs fixed in 1.7.2d11.
-- Kai Vehmanen <firstname.lastname@example.org> ---------------- CS, University of Turku . . audio software for linux ... http://www.eca.cx . . armchair-tunes mp3/wav/ra .. http://www.wakkanet.fi/sculpcave .
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