Arthur wrote: > Ralf Mardorf wrote: >> Hi :) >> >> Sound is without noise and there are no XRUNS, but there are uncleared >> software crashes. >> >> jackd is set to: >> >> Frames/Period: 128 >> Sample Rate: 48000 >> Periods/Buffer: 2 >> >> I can imagine to set jackd to: >> >> Frames/Period: 256 >> Sample Rate: 48000 >> Periods/Buffer: 3 >> >> What are the usual settings for Envy24 cards with 2 analogue IOs? >> >> > Hi Ralf, > > I have a delta 44 which also has the ICE1712 chip > I'm set at: > > Frames/Period: 64 > Sample Rate: 48000 > Periods/Buffer: 2 > > 2.67 msec > > I only run two mics at a time but I have had no xruns on ardour. I > haven't tested it on rosegarden audio yet. > > Cheers, > Arthur
Thank you Arthur :) your Delta 44 might be better than my TerraTec EWX 24/96, because your's has got a DSP for a Mixer, but the TerraTec is fine for Windows with latencies around 5ms, I searched for this by Google and I also noticed that I also have no noise or XRUNS at smaller values than 128 Frames, 2 Periods, 48000Hz, so I don't think that I will have crashes because of 128 Frames, 2 Periodes, 48000Hz. When using my card with Reaper on wine, I had to increase the latency because of XRUNS, but even with XRUNS Reaper never crashed like Rosegarden and other Linux applications do, when there are no XRUNS. I'm afraid that the crashes have nothing to do with the settings for jackd. "Conventional low latency systems (e.g. ASIO) use n=2 all the time. ALSA is rather unusual in allowing other values." (http://lau.linuxaudio.org/jack/) Because I know that the TerraTec is fine with Windows and Cubase using the ASIO driver, I guess there shouldn't be the need to increase Periodes/Buffer to 3. I've enough CPU resources, but didn't use dither anyway. If ports means the number of clients jackd can handle, I also can't see wrong value for that for my settings. People from the Linux community often say my card should be a less good card, I should buy a new one and indeed the sound quality I've got with it using Linux, is less good than when in use with Windows, but on the other hand there seems to be a lot of people that seems to be fine with Envy24 cards for Linux. I can't remember the kind of crashes I've now, when using Linux with my old hardware, but non-audio Linux with my new hardware is fine and it wasn't with my old hardware. I'll try Frames/Period: 256 Sample Rate: 48000 Periods/Buffer: 3 or Frames/Period: 512 Sample Rate: 48000 Periods/Buffer: 2 I guess any higher settings are abstruse for a DAW. Using higher values for Reaper on wine makes Reaper unusable because of bad timing and bad sync, but even with less high values Reaper, wine or jackd didn't crash, just the sound was broken when using the mouse, changing the desktop etc.. Cheers, Ralf
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