[ecasound] mixmode,sum bug?

I spent a lot of time tweeking everything I could think of. Is this a
bug in ecasound, or my setup?

In the following ECS file, when "Short.wav" ends (file ends), the chain
operators attached to "Long.wav" (seem) to take on the attributes of the
chain operators of "Short.wav". I can hear reverb of "Long.wav" in
channel 2. But also, it sound like there's some phase shifting in both
channels. With certain chain operators set a certain way (in
"Short.wav") it can even (loop possibly?) and feedback once "Short.wav"
ends.

I changed "-z:mixmode,sum" to "-z:mixmode,avg" and the problem (almost)
went away. I can hear reverb in channel 2 with "-z:mixmode,avg" set, but
not a lot.

I'm running ecasound v2.4.3 and Planet CCRMA (FC3)

Thanks,
Rocco

# general
-b:128 -r:50 -z:nointbuf -z:nodb -n:ChainSetUp -X -z:noxruns -z:nopsr
-z:mixmode,sum

# audio inputs
-a:1 -f:16,1,48000 -i:Long.wav
-a:2,2.1 -f:16,1,48000 -i:Short.wav

# audio outputs
-a:1,2,2.1 -f:16,2,48000 -o:alsa,hw:0

# chain operators and controllers
-a:1 -erc:1,2 -ea:74 -epp:50 -efl:20000 -efh:4
-a:2 -erc:1,2 -ea:80 -epp:0 -efl:20000 -efh:4
-a:2.1 -erc:1,2 -ea:68 -epp:100 -efl:20000 -efh:4 -ete:52,200,99

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Received on Mon Jan 2 12:15:04 2006