[linux-audio-dev] trouble binding multiple ice1712 devices

Hi folks, I'm having some trouble building a working asound.conf to get my soundcards functional using jack. The audio hardware consists of 3 Terratec ice1712 boards: 2x EWS88/D + 1x Phase88, hooked up using the EWS connect clock synchronisation cables. My goal is to get full duplex audio I/O for my home studio: 16 channels ADAT in/out and 8 channels analogue in/out. I verified that this configuration works from my old windows 2000 partition (using the terratec ASIO driver). Till now I did not succeed getting this gear fully working in my linux environment; it seems that I'm having trouble with the asound.conf to setup the binding for the devices. - running jack addressing the hw: devices directly works flawless; but that way I can only use one card at a time - as per descriptions from the mailing list archive I tried to setup an aggregate device using the alsa multi type plugin. Since Jack needs to mmap the buffer it needs an additional route type plugin to make the capture stream interleaved. However, at this stage I run into a few issues: * due to the different number of ports the ice1712 has for playback (12) and capture (10) I can't do full duplex I/O. * when I do a capture only from the route plugin I hear a distorted sound (quiet, metalic, you can hear the rhythm from the orignal track), which I suspect is caused by the route plugin. I can't verify if this effect is specific to my 64bit machine or also present on 32bit * I tried to setup different input/output for capture and playback using the asym plugin type, but this attempt caused jackd to kill the graph after a few seconds full of xruns. If anyone has a pointer to or copy of a working asound.conf for multitrack recording/playback using multiple ice1712 based cards I'd be very interested to see those. Some details about the software I'm running: Advanced Linux Sound Architecture Driver Version 1.0.9b. kernel 2.6.12-gentoo-r4 on AMD64 hardware Jackd 0.99.0 Here's my non-functional attempt at a asound.conf for binding 2 Terratec EWS88/D cards: ============================================================================= # card0 is the onboard via82xx / ac97 sound # # card1 is a EWS88/D (ADAT 1-8) # card2 is a EWS88/D (ADAT 9-16) # card3 is a Phase88 (analog 17-24) # # card4 is a Midiman Midisport 4x4 USB Midi interface #default pcm.!default { type hw card 0 } ctl.!default { type hw card 0 } # Terratec EWS88/D hardware # pcm.ews_0 { type hw card 1 } ctl.ews_0 { type hw card 1 } pcm.ews_1 { type hw card 2 } ctl.ews_1 { type hw card 2 } # Aggregate of the 2 EWS88/D cards # ctl.ews_16 { type hw card 1 } pcm.ews_16 { type multi slaves.a { pcm "ews_0" channels 12 } slaves.b { pcm "ews_1" channels 12 } bindings [ # adat 1-8 {slave a channel 0} {slave a channel 1} {slave a channel 2} {slave a channel 3} {slave a channel 4} {slave a channel 5} {slave a channel 6} {slave a channel 7} # spdif card 1 #{slave a channel 8} #{slave a channel 9} #{slave a channel 10} #{slave a channel 11} # adat 9-16 {slave b channel 0} {slave b channel 1} {slave b channel 2} {slave b channel 3} {slave b channel 4} {slave b channel 5} {slave b channel 6} {slave b channel 7} # spdif card 2 #{slave b channel 8} #{slave b channel 9} #{slave b channel 10} #{slave b channel 11} ] } # jack can't mmap the streams above since they are # scattered around at different memory locations ctl.ews_jack { type hw card 1 } pcm.ews_jack { # asym allows for different handlng of in/out devices type asym playback.pcm { type route slave.pcm "ews_16" ttable.0.0 1 ttable.1.1 1 ttable.2.2 1 ttable.3.3 1 ttable.4.4 1 ttable.5.5 1 ttable.6.6 1 ttable.7.7 1 ttable.8.8 1 ttable.9.9 1 ttable.10.10 1 ttable.11.11 1 ttable.12.12 1 ttable.13.13 1 ttable.14.14 1 ttable.15.15 1 #ttable.16.16 1 #ttable.17.17 1 #ttable.18.18 1 #ttable.19.19 1 } capture.pcm { type route slave.pcm "ews_16" ttable.0.0 1 ttable.1.1 1 ttable.2.2 1 ttable.3.3 1 ttable.4.4 1 ttable.5.5 1 ttable.6.6 1 ttable.7.7 1 ttable.8.8 1 ttable.9.9 1 ttable.10.10 1 ttable.11.11 1 ttable.12.12 1 ttable.13.13 1 ttable.14.14 1 ttable.15.15 1 #ttable.16.16 1 #ttable.17.17 1 #ttable.18.18 1 #ttable.19.19 1 #ttable.20.20 1 #ttable.21.21 1 #ttable.22.22 1 #ttable.23.23 1 } } ============================================================================= Cheers, Frank. -- +---- --- -- - - - - | Frank van de Pol -o) A-L-S-A | FvdPol(a)coil.demon.nl /\\ Sounds good! | http://www.alsa-project.org _\_v | Linux - Why use Windows if we have doors available?