or use 'vlc' or use any Video/Audio playback you have on your machine.Sigh, I may just reach out for alternative APIs instead of trying to convince people that this might be a bug in the simple API you provide.
On Sun, Aug 29, 2021 at 6:53 PM mindfsck <mindfsck@xxxxxxxxx> wrote:
I repeat myself...use 'paplay' or 'aplay' and the result is fine.On Sun, Aug 29, 2021 at 6:31 PM guest271314 <guest271314@xxxxxxxxx> wrote:How do we know what the expected result is?On Sun, Aug 29, 2021 at 5:01 AM mindfsck <mindfsck@xxxxxxxxx> wrote:you could try is making use of the buffering attributes in
pa_simple_new. Specifically, setting prebuf to a suitable value.I tried setting prebuf to -1, 0, 1, 2, 4, 16, and 320. Made no difference to me.Another thing to check is if there are a couple of silent samples at the
beginning of the problematic wav filesI checked. The first 20ms are silent samples.Attached is the file.On Sun, Aug 29, 2021 at 12:06 AM Sean Greenslade <sean@xxxxxxxxxxxxxxxxxx> wrote:On Fri, Aug 27, 2021 at 04:57:07PM +0200, mindfsck wrote:
> I seem to be to silly for it:
> # sox in.wav -r 22050 out.wav resample
> sox FAIL formats: can't open input file `out.wav': No such file or directory
>
> Of course there is no out.wav since that's what I want to create!
I would not bother with trying to change sample rates, that's very
unlikely to be the issue. Plus, a lot of sound cards only support 44.1
kHz and 48 kHz, so pulse would just have to resample it again on playback.
One thing you could try is making use of the buffering attributes in
pa_simple_new. Specifically, setting prebuf to a suitable value. There's
some helpful info in the buffer_attr docs page here:
https://www.freedesktop.org/software/pulseaudio/doxygen/structpa__buffer__attr.html
Another thing to check is if there are a couple of silent samples at the
beginning of the problematic wav files. If the first sample is non-zero,
that could potentially cause pops on playback.
--Sean
