What happens when you resample to 22050? On Fri, Aug 27, 2021 at 7:18 AM mindfsck <mindf...@gmail.com> wrote:
> Why is the sample rate set to 48000? >> > > No idea! The sourcing of the file is outside of my hands.. > > On Fri, Aug 27, 2021 at 4:14 PM guest271314 <guest271...@gmail.com> wrote: > >> Why is the sample rate set to 48000? >> >> On Fri, Aug 27, 2021 at 6:40 AM mindfsck <mindf...@gmail.com> wrote: >> >>> Thanks Sean. I unloaded the suspend module but the plop is still there. >>> I don't really think it is HW related since the file plays just fine >>> with paplay and aplay. >>> >>> On Fri, Aug 27, 2021 at 5:49 AM Sean Greenslade <s...@seangreenslade.com> >>> wrote: >>> >>>> On Thu, Aug 26, 2021 at 09:43:23PM +0200, mindfsck wrote: >>>> > Hi there, >>>> > >>>> > I was using this example to simply play a WAV file without having >>>> much clue >>>> > of audio: >>>> > >>>> https://www.freedesktop.org/software/pulseaudio/doxygen/pacat-simple_8c-example.html >>>> > I changed the sources to match (IMHO) my settings, i.e. channels=1 and >>>> > rate=48000. >>>> > >>>> > I have two wavefiles, the first plays as it should (compared with >>>> command >>>> > line paplay or aplay) and the second one has an audible PLOP (but only >>>> > around 90% of the time) at the very beginning of playback: >>>> > >>>> > (1 - OK) >>>> > General >>>> > Complete name : out_clean.wav >>>> > Format : Wave >>>> > File size : 81.3 KiB >>>> > Duration : 866 ms >>>> > Overall bit rate mode : Constant >>>> > Overall bit rate : 769 kb/s >>>> > Audio >>>> > Format : PCM >>>> > Format settings : Little / Signed >>>> > Codec ID : 1 >>>> > Duration : 866 ms >>>> > Bit rate mode : Constant >>>> > Bit rate : 768 kb/s >>>> > Channel(s) : 1 channel >>>> > Sampling rate : 48.0 kHz >>>> > Bit depth : 16 bits >>>> > Stream size : 81.2 KiB (100%) >>>> > >>>> > (2 - NOK) >>>> > General >>>> > Complete name : out_short_clean.wav >>>> > Format : Wave >>>> > File size : 22.8 KiB >>>> > Duration : 242 ms >>>> > Overall bit rate mode : Constant >>>> > Overall bit rate : 772 kb/s >>>> > Audio >>>> > Format : PCM >>>> > Format settings : Little / Signed >>>> > Codec ID : 1 >>>> > Duration : 242 ms >>>> > Bit rate mode : Constant >>>> > Bit rate : 768 kb/s >>>> > Channel(s) : 1 channel >>>> > Sampling rate : 48.0 kHz >>>> > Bit depth : 16 bits >>>> > Stream size : 22.8 KiB (100%) >>>> > >>>> > I tried using different BUFSIZE and my systemload is also not an >>>> issue... >>>> > Any ideas? >>>> >>>> I've experienced something like this with a few built-in audio cards on >>>> various laptops. It's never bothered me enough to track it down, but I >>>> suspect it's due to the suspending and resuming of cards. Can you try >>>> disabling the autosuspend module and see if it still happens? Use this >>>> command to temporarily disable it until the next time pulse reloads: >>>> >>>> $ pactl unload-module module-suspend-on-idle >>>> >>>> --Sean >>>> >>>>
