Re: Sound glitch when using libvorbisfile and libao

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Hi Gunter,
I think this problem started happening when I upgraded from Debian Wheezy
to Debian Jessie. If nothing looks amiss in my code, it probably is a sound
driver problem. But since it works 100% of the time in ogg123, I feel I
must have missed some corner case.

My audio driver is almost always active. I usually have my music player
going in the background when I do my testing. The problem surfaces more
reliably after watching a bunch of YouTube videos, but not consistently
enough to use it as a test case.

I'll keep poking at it, and will give an update if I figure it out.

Thanks for your responses.

Marshall

On Sun, Jun 14, 2015 at 12:51 AM, Gunter K=C3=B6nigsmann <gunter@peterpall.=
de>
wrote:

> Dear Marshall,
>
> I spent most of yesterday finding out that wxWidget's wxStringArray
> sometimes drops whitespace in a new entry depending on the character the
> last entry ended with - so I know what you mean. But your code looks clea=
n
> and after listening to the bell for what felt too long I started using yo=
ur
> program as a regular audio player.
> I too assume the problem lies in the audio driver your soundcard is using
> and has to be triggered by using some exact timing. One potential way to
> test for this would be keeping the audio driver active between running
> instances of your program: You said the problem always turns up when
> starting the playback. Is it possible for you to constantly play back
> silent audio in the background while testing? Alsa can be configured to
> automatically mix all streams that are being played back simultaneously a=
nd
> the sound servers all support this feature, too.
>
> Kind regards,
>
>      Gunter.
>

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<div dir=3D"ltr">Hi Gunter,<div>I think this problem started happening when=
 I upgraded from Debian Wheezy to Debian Jessie. If nothing looks amiss in =
my code, it probably is a sound driver problem. But since it works 100% of =
the time in ogg123, I feel I must have missed some corner case.</div><div><=
br></div><div>My audio driver is almost always active. I usually have my mu=
sic player going in the background when I do my testing. The problem surfac=
es more reliably after watching a bunch of YouTube videos, but not consiste=
ntly enough to use it as a test case.</div><div><br></div><div>I&#39;ll kee=
p poking at it, and will give an update if I figure it out.</div><div><br><=
/div><div>Thanks for your responses.</div><div><br></div><div>Marshall</div=
></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Sun, Ju=
n 14, 2015 at 12:51 AM, Gunter K=C3=B6nigsmann <span dir=3D"ltr">&lt;<a hre=
f=3D"mailto:[email protected]" target=3D"_blank">[email protected]</a>&=
gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 =
0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear Marshall,<div><br>=
</div><div>I spent most of yesterday finding out that wxWidget&#39;s wxStri=
ngArray sometimes drops whitespace in a new entry depending on the characte=
r the last entry ended with - so I know what you mean. But your code looks =
clean and after listening to the bell for what felt too long I started usin=
g your program as a regular audio player.</div><div>I too assume the proble=
m lies in the audio driver your soundcard is using and has to be triggered =
by using some exact timing. One potential way to test for this would be kee=
ping the audio driver active between running instances of your program: You=
 said the problem always turns up when starting the playback. Is it possibl=
e for you to constantly play back silent audio in the background while test=
ing? Alsa can be configured to automatically mix all streams that are being=
 played back simultaneously and the sound servers all support this feature,=
 too.</div><div><br></div><div>Kind regards,</div><div><br></div><div>=C2=
=A0 =C2=A0 =C2=A0Gunter.</div></blockquote></div><br></div>

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