Michael Jarosch <riotsound@xxxxxxxxxxxx> writes: > It's me, again! > > Using a realtime kernel, I struggled with xruns on my Focusrite > Scarlett 2i4 (1st gen) and just wasn't able to work it out. Guess, I > didn't manage to include the device into rtirq's list of interrupts > with high priority… > > Surprisingly, using a standard debian kernel solved it. Still, I would > love to understand, how to configure rtirq to make a usb audio > standard device just work… I ended up setting the interrupt numbers > [16,23] to RTIRQ_NAME_LIST without any success on the xrun front. But > maybe I should have done anything else? I configured my system doing > all the things mentioned in > https://wiki.linuxaudio.org/wiki/system_configuration AND verified > this and more with the rtcqs scripts. > > The linux-show-player issue is also persistent… Which sample rate, which period size and count? Personally I have found that using a period size of the form 3*2^n rather than 2^n can surprisingly improve results at 48kHz or 96kHz of sampling frequency, likely due to the timer interval becoming better expressible in terms of system ticks and/or milliseconds. That can lead to a period size of 256 being problematic and a size of 48 samples working fine, depending on the device and drivers in question. -- David Kastrup _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
