Re: [ecasound] Problems with chains

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Subject: Re: [ecasound] Problems with chains
From: Kai Vehmanen (k@eca.cx)
Date: Fri Sep 01 2000 - 12:01:26 EEST

On Wed, 30 Aug 2000, Matthew Angell wrote:

> ecasound -t:15 -a:1,2 mp3/music.mp3 \
> -a:1 -ea:0 -kl2:1,0,100,0,5 -gc:0,5 \
> -a:2 -ea:100 -kl2:1,100,0,5,5 -gc:5,5

First of all, you should always use -i (input) and -o (output) when
specifying file names. For convenience, ecasound will handle "ecasound
somefile.wav" correctly, by outputting the file to default output device,
but with more complex setup you're bound to get unexpected results.

> ecasound -t:15 -a:1 voice.wav \
> -a:2,3 mp3/music.mp3 \
> -a:2 -ea:0 -kl2:1,0,100,0,5 -gc:0,5 \
> -a:3 -ea:100 -kl2:1,100,0,5,5 -gc:5,5
> Thats wierd- now the first half of the fade in is completely silent, and
> the last half jumps in out of no where. Through some experimentation, I

How about...

ecasound -t:15 \
        -a:1 -i voice.wav \
        -a:2,3 -mp3/music.mp3 \
        -a:2 -ea:0 -kl2:1,0,100,0,5 -gc:0,5 \
        -a:3 -ea:100 -kl2:1,100,0,5,5 -gc:5,5
        -a:1,2,3 -o /dev/dsp

'voice.wav' should be audible the whole 15 seconds. Between 0-5sec,
you should here music.mp3 faded in, and between 5-10sec, the same file
faded out. 

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 . http://www.eca.cx ... [ audio software for linux ] /\ . 
 . http://www.eca.cx/aivastus ... [ aivastus net radio ] /\ . 
 . http://www.eca.cx/sculpscape [ my armchair-tunes mp3/ra/wav ]

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