hi people.
im working in an installation using 4 audio+video channels, running in a quadcore, 2 nvidia9600gt, 4gbram, under ubuntu 9.10 and pd 0.43.
i built this installation last november in argentina. now, we bought a complete new setup (with some small differences) to replicate the work in a new museum in lima-peru.
my trouble is: in the last installation, i used a 7.1 onboard audiocard, with an Intel chipset. using an stupid "alsa force-reload", i had all the channels opened in PD 0.41 (in ubuntu 9.10) working great.
now i bought a new motherboard, without a 7.1 channels, and i've tried to use severals pci audioboard - a 4.1 crystal clear chipset, a 5.1 Via VT1724, and a m-audio 2496 4x4. all of then, in a pci slot.
ok, finally my trouble: i can get all channels working separated in pd, but, all the time i hear a kind of "metallic" sound instead my original sound. if i change back to a normal stereo, i can hear the audio normally.
i made all the test of 5.1, 4.1 and 3.1. i changed to Pd 0.41, 0.42 and 0.43. in all cases, i have the same trouble. i made some tests also, using vlc and speaker-test, and the multichannel looks working fine ou of pd.
somebody know how to solve this? i will have my opening in the next 24 feb, and would be amazing to have the 4 audio channels working with my 4 video channels (running in pdp+gem)
thanks a lot
palm