[ecasound] mixmode,sum bug?

From: LinuxMedia <linuxmedia2@email-addr-hidden>
Date: Mon Jan 02 2006 - 09:19:48 EET

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"

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)


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

# 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

This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
for problems? Stop! Download the new AJAX search engine that makes
searching your log files as easy as surfing the web. DOWNLOAD SPLUNK!
Ecasound-list mailing list
Received on Mon Jan 2 12:15:04 2006

This archive was generated by hypermail 2.1.8 : Mon Jan 02 2006 - 12:15:04 EET