On July 24, 2010 06:44:40 pm you wrote: > For the alsa "default" device, as used by web-apps and other things > where you haven't explicitly set the device, consider using a "dmix" > device such as done in http://nielsmayer.com/npm/dot-asoundrc.txt I've battled with .asoundrc before so I know my way around a bit. Been a while since I looked at dmix. If I run at say 128 Jack frames, will dmix slow things appreciably, particularly with a complex .asoundrc ?
> > What would be more interesting, and I haven't explored yet, would be > to combine the "dmix" and "dshare" examples from the file above, which > would allow reserving a single stereo pair for "default" that would > resample to 44.1K no matter what the sample rate -- thus no diddling > around between playing web video @ 48K versus audio @ 44.1K. > See 66ch12 66ch34 66ch56 66ch78 66spdif for the dshare devices made > out of a single ice1712 device (Delta 66). So if "default" is assigned > to channels 1+2, I could still use > devices 66ch34 66ch56 66ch78 or 66spdif to access other outputs, > independently of whether a web browser has tied up channels 1/2. (too > bad jackd won't work (?) with such a configuration of "sharing" part > of a card via ALSA dshare -- last time I tried it treated the card as > "busy" until I released resources associated with the remaining > dshare'd part of the card) > > Another example of a dmix'd default device -- an ICE1724 -- > http://nielsmayer.com/npm-dynex-asoundrc.txt which also duplicates the > stream to both analog (i.e. headphone out) and SPDIF outputs > simultaneously. Although now that I understand this card better, for > the particular example of a dynex dx-sc51 I'd run it at 48K because of > the particular AC97 codec used on this $0.99 best-buy special. This would be handy. > > Niels > http://nielsmayer.com > > PS: ob-envy24: I'm close to releasing my improvements of > envy24control. Just one more bug to fix. Some screenshots: > http://nielsmayer.com/envy24control/Screenshot-Envy24Control-AnalogVolume.p >ng > http://nielsmayer.com/envy24control/Screenshot-Envy24Control-MonitorInputs. >png > http://nielsmayer.com/envy24control/Screenshot-Envy24Control-MonitorPCM.png Holy crud that's nice !!! You really went to town on this ! How the heck did you manage the slider markings, after I posted I thought it was impossible to satisfy, especially with different cards ? Cheers. Tim. _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
