[linux-audio-user] looking for help with ecamegapedal 0.4.3

Kai Vehmanen kai.vehmanen at wakkanet.fi
Mon Dec 15 14:45:25 EST 2003

On Sun, 14 Dec 2003, Paul Berry wrote:

> I have recently compiled and installed ecamegapedal v0.4.3 - [libecasound 
> 2.3.0]. and I'm having some problems getting it to work right. I thought I'd 
> post my questions to this list as I'm assuming Kai Vehmanen subscribes to 
> this list as well.

You assumed right. :) 

> First off, ecamegapedal is exactly what I am looking for - an easy way to turn 
> a computer into an effects box. Realtime reverb, delay, LAPSPA plugins... 

Also check out JACK-Rack:

> First is that I'm getting a lot of backround distortion/ static. I can hear my 
> input signal fine and the selected effects work as they should. The level 
> meters are quite active when there is no signal input/ quiet passage and the 
> distortion is a low level buzzing/ static that is totally related to running 
> the program.

Does the same happen with ecasound? Here's a few things to try:

# basic ecamegapedal style rule
ecasound -i alsa,default -o alsa,default
# ...the same but with an effect 
ecasound -i alsa,default -o alsa,default -pn:time_phaser1
# ...more buffering
ecasound -i alsa,default -o alsa,default -pn:time_phaser1 -z:intbuf
# ... 8bit only
ecasound -f:8,2,44100 -i alsa,default -o alsa,default -pn:time_phaser1 -z:intbuf
# ... use ALSA hw-interface
ecasound -f:8,2,44100 -i alsa,hw:0 -o alsa,hw:0

... you can also try running both as root and as normal user, and see if 
there is any difference.

> The other problem is periodically the computer totally locks up, GUI, mouse, 
> keyboard, everything freezes and I have to do a hard reset (no other program 
> that I've run seems to cause this on my computer but the computer is old and 
> flakey in other respects...).

Hmm, running as root...?

> Creative SB AWE64 ISA soundcard

Now this is problematic. I have one and it is a pretty lousy card 
unfortunately. :( For example, you cannot do simultaneous 16bit playback 
and recording. One of the streams has to be 8bit.

 Audio software for Linux!

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