[linux-audio-user] Removing voice

Eric Dantan Rzewnicki rzewnickie at rfa.org
Wed Mar 30 18:53:27 EST 2005


On Wed, Mar 30, 2005 at 03:33:46PM -0800, Brad Fuller wrote:
> Kai Vehmanen wrote:
> >On Wed, 30 Mar 2005, Brad Fuller wrote:
> >>>sh> ecasound -i foo.wav -o alsa -el:karaoke,-3
> >>Kai, how do you input multiple args for a plugin? I could never get 
> >>this to work. I'm sure it's something really silly that I'm missing.
> >Just list them one by one, separated by commas:
> ># to process foo.wav with SC4 LADSPA compressor
> >sh> ecasound -i foo.wav -o alsa -el:sc4,0,40,40,-18,6,6,6,0,0 -c
> ># set 5th SC4 parameter to 9 (ratio) in real-time ecasound> cop-set 1,5,9
> AH.... NO SPACES! I didn't think whitespace would be a problem.
> ok, thanks
> Here are two more questions (gee, aren't you glad you replied :-) )
> 
> 1. I have an input file that is MONO, but the output defaults to STEREO. 
> Why?

ecasound defaults to stereo objects. You can set the default audio
format in your ecasoundrc if you so desire. Or specify it for each
output file something like this:

ecasound -i:somemonoin -f:24,1,48000 -o:somemonoout

If your chain contains a stereo effect you might want to combine the two
channels with -erm:1, or not.

(somehow I think I might be wrong about this ... Kai will correct me if
I am, I'm sure.)

> 2. See below warnings I receive when running ecasound. Why do I receive 
> these? And, can I get rid of them?
> 
> 
> [bfuller at ives test]$ ecasound -i BAT2013_8k.wav -o BAT2013_8k_TEST.wav 
> -el:triplePara,0.7,20,0.5,3.0,336,3.6,0.5,672,4,0,10,0,0,10,0

Not sure about this one. What if you put the -el: arguments in ""s?
(shot in the dark ... )

> ****************************************************************************
> *               ecasound v2.3.5 (C) 1997-2004 Kai Vehmanen
> ****************************************************************************
> - [ Session created ] ------------------------------------------------------
> - [ Chainsetup created (cmdline) ] -----------------------------------------
> (eca-object-map) Warning! Keyword dahdsr_g+t_audio doesn't match to 
> regex ^dahdsr_g+t_audio$ for object 'DAHDSR Envelope with Gate and 
> Trigger (Audio-Rate Inputs)' ().
> (eca-object-map) Warning! Keyword dahdsr_g+t_control doesn't match to 
> regex ^dahdsr_g+t_control$ for object 'DAHDSR Envelope with Gate and 
> Trigger (Control Inputs)' ().
> (eca-object-map) Warning! Keyword dahdsr_cg+t_control doesn't match to 
> regex ^dahdsr_cg+t_control$ for object 'DAHDSR Envelope with Control 
> Gate and Trigger (Control Inputs)' ().
> (eca-object-map) Warning! Keyword Phaser1+LFO doesn't match to regex 
> ^Phaser1+LFO$ for object 'Phaser1 with LFO' ().
> (eca-object-map) Warning! Keyword adsr_g+t doesn't match to regex 
> ^adsr_g+t$ for object 'ADSR Envelope with Gate and Trigger' ().
> (eca-object-map) Warning! Keyword plate doesn't match to regex ^plate$ 
> for object 'Plate reverb' ().
> - [ Connecting chainsetup ] ------------------------------------------------
> (eca-chainsetup) 'nonrt' buffering mode selected.
> (eca-chainsetup) Audio object "BAT2013_8k.wav", mode "read".
> (audio-io) Format: s16_le, channels 1, srate 8000, interleaved.
> (eca-chainsetup) Audio object "BAT2013_8k_TEST.wav", mode "read/write".
> (audio-io) Format: s16_le, channels 2, srate 8000, interleaved.
> - [ Chainsetup connected ] -------------------------------------------------
> (eca-controller) Connected chainsetup:  "command-line-setup".
> - [ Controller/Starting batch processing ] ---------------------------------
> - [ Engine init - Driver start ] -------------------------------------------
> - [ Controller/Batch processing finished ] ---------------------------------
> (eca-controller) Disconnecting chainsetup:  "command-line-setup".
> - [ Chainsetup disconnected ] ----------------------------------------------
> 
> 
> 

-- 
Eric Dantan Rzewnicki  |  Systems Administrator
Technical Operations Division  |  Radio Free Asia
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