Hi Chris, yes I did (I was using aplay to test), and both hw and plughw.
Cheers, Paul On Thu, 27 Oct 2022 at 10:42, chris hermansen <clherman...@gmail.com> wrote: > Paul and list > > On Wed, Oct 26, 2022, 14:34 Paul Dorman <paul.dor...@gmail.com> wrote: > >> Hi Ralf, >> >> thanks for your reply. Yes I have tried changing the USB ports, but there >> was no improvement. My system has both USB2 and USB3 ports so by switching >> I was also switching controllers. >> >> I have tested with plain ALSA, with S16_LE and S32_LE PCM sample formats, >> as well as direct digital streams using the DSD_U16_LE, DSD_U32_LE formats. >> The problem isn't resolved with any one of them, so it must be isolated to >> one or a combination of the snd-usb-audio kernel module, alsa-lib itself, >> or some issue with the device itself. >> > > When you were using "plain ALSA" did you: > > 1. Disable Pulse and Pipewire access to the device? > > 2. Use the "hw" and "plughw" devices? > >> >> Here are the audio streams available on the FiiO K5Pro. Perhaps there's a >> clue there as to what parameters I might try to tune next. >> >> cat /proc/asound/Pro/stream0 >> GuangZhou FiiO Electronics Co.,Ltd FiiO K5 Pro at usb-0000:06:00.0-1, >> high spee : USB Audio >> >> Playback: >> Status: Stop >> Interface 1 >> Altset 1 >> Format: S32_LE >> Channels: 2 >> Endpoint: 0x01 (1 OUT) (ASYNC) >> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, >> 705600, 768000 >> Data packet interval: 125 us >> Bits: 32 >> Channel map: FL FR >> Sync Endpoint: 0x81 (1 IN) >> Sync EP Interface: 1 >> Sync EP Altset: 1 >> Implicit Feedback Mode: No >> Interface 1 >> Altset 2 >> Format: S16_LE >> Channels: 2 >> Endpoint: 0x01 (1 OUT) (ASYNC) >> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, >> 705600, 768000 >> Data packet interval: 125 us >> Bits: 16 >> Channel map: FL FR >> Sync Endpoint: 0x81 (1 IN) >> Sync EP Interface: 1 >> Sync EP Altset: 2 >> Implicit Feedback Mode: No >> Interface 1 >> Altset 3 >> Format: SPECIAL >> Channels: 2 >> Endpoint: 0x01 (1 OUT) (ASYNC) >> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, >> 705600, 768000 >> Data packet interval: 125 us >> Bits: 32 >> DSD raw: DOP=0, bitrev=0 >> Channel map: FL FR >> Sync Endpoint: 0x81 (1 IN) >> Sync EP Interface: 1 >> Sync EP Altset: 3 >> Implicit Feedback Mode: No >> >> Cheers, >> Paul >> >> >> >> On Wed, 26 Oct 2022 at 20:58, Ralf Mardorf <ralf.mard...@alice-dsl.net> >> wrote: >> >>> On Wed, 2022-10-26 at 20:24 +1300, Paul Dorman wrote: >>> > one of the USB3 ports >>> >>> Hi, >>> >>> did you test different USB ports? >>> >>> > Whatever is causing it, the problem has persisted through OS upgrades >>> > and the switch from Pulseaudio to Pipewire. >>> >>> I'm in favour of using plain ALSA or jackd. For testing purpose don't >>> use a sound server, test with plain ALSA. >>> >>> Regards, >>> Ralf >>> >>> >>> _______________________________________________ >>> Alsa-user mailing list >>> Alsa-user@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/alsa-user >>> >> _______________________________________________ >> Alsa-user mailing list >> Alsa-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/alsa-user >> >
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