Re: [linux-audio-dev] question re: hammerfall cards

Hi Paul, thanks for the quick answers, I tried things as soon as I got back. I've been experimenting some more (sometimes analogue audio is so much easier to debug), and I'm slowly learning stuff, but I haven't been able to actually record things yet. So, on to some more questions ... That seems to work as you says it does (apart from the fact that I can't verify it actually works yet :)). I haven't seen this in any of the ALSA docs I read through (granted, most of those were updated and seemed to be pre-0.9, so I can't even tell how relevant some of those docs are) - did I miss some more important document, or a most recent version of it ? Or did I just miss it in my eagerness ? After connecting S/PDIF input to the two cards, I wanted to try and record stuff to see if I actually got the signal in. I'm using arecord with various options. arecord -l gives me [root@framboos tmp]# arecord -l card 0: 15 [RME Digi9636 (Rev 1.5)], device 0: RME Digi9636 (Rev 1.5) [RME Digi9636 (Rev 1.5)] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: 15_1 [RME Digi9636 (Rev 1.5)], device 0: RME Digi9636 (Rev 1.5) [RME Digi9636 (Rev 1.5)] Subdevices: 1/1 Subdevice #0: subdevice #0 arecord -L gives me a whole lot of output to stderr which I can't fully understand at this point. -d should allow me to specify a device, but I have no idea in what syntax this is for which card. I tried a few things: - specifying 0 and 1 - specifying 15 and 15_1, the card ids - specifying "spdif" (based on output of arecord -L, but I don't know how I would choose between cards in that case) - specifying random numbers, which seems to do something even though I can't imagine what it would be recording from in those cases. In some cases it terminates after a second, which probably means I specified an invalid device, but I don't get errors. I have run with -v as well, but that seems to give information about internal (software) plugins to do the recording. All of the files I recorded I encoded with oggenc as a quick hack - if the bitrate is 0.8 kb/sec, I'm pretty safe in assuming that I recorded silence :) So basically, my questions are : a) is there some alsa-enabled recorder that allows me to choose devices easily and allows for monitoring the incoming signal ? b) what is the correct way (or a doc describing it) to specify devices for arecord ? Is arecord using the "ALSA-standard" way of doing this, as is done in other applications ? c) could I have forgotten anything else here when trying to record stuff ? I assume that, since the Hammerfall doesn't have a mixer chip, the channel is always-on. If there isn't any Hammerfall quick how-to, I wouldn't mind writing my experiences down if that could be helpful for anyone. Thanks in advance, Thomas -- The Dave/Dina Project : future TV today ! - http://davedina.apestaart.org/ <-*- thomas (dot) apestaart (dot) org -*-> Now I find myself redeemed 'cos no one's seen the bad in me or been where I've been <-*- thomas (at) apestaart (dot) org -*-> URGent, the best radio on the Internet - 24/7 ! - http://urgent.rug.ac.be/