Re: [pygame] vista testing...

["René Dudfield" <renesd@xxxxxxxxx>]

Thanks for your testing Bo.

I guess if you used 1024 * 3 * 2 for 44K sound then it wouldn't be
scratchy too.  This is because you need twice the buffer size to avoid
scratchyness as compared to 22K sound - which is half the size of the
44K sound.

Thanks for the tip about the Sound object not raising an exception.
I'll add a few more unit tests for the sound stuff.


cheers,


On Mon, Mar 24, 2008 at 8:27 AM, Bo Jangeborg <bo@xxxxxxxxxxx> wrote:
> The buffer setting doesn't seem to make a differens.
>  The key seem to be the sampling rate. Lots of scratching at 44k sound
>  but OK at 22k. But even then I get scratches if I start some way into
>  the music
>  rather then at the start. The later problem I had in pygame 1.7 too.
>
>  In pygame 1.7 music worked OK in Vista at 44k.
>  I have tried both ogg and mp3 in pygame 1.8.
>  Have you tried playing music at 44k on XP machines?  Maybe this is a more
>  general problem.
>
>  Another thing that seem to have changed is that if a path to a sound file
>  is wrong it doesn't cause an exception. Instead it returns an empty
>  sound object..
>  Is that really intended ?
>
>
>
>  René Dudfield skrev:
>
>
> > yeah, I think generally increasing the buffer size helps people.
>  >
>  > For rc5 I increased the default buffer size to 1024 * 3... which has
>  > worked in the past to fix things up on most peoples computers.
>  >
>  > Unfortunately increasing it over 3*1024 starts to make the sound lag
>  > noticable... at least to me.  So I think it will have to be a per
>  > game, or per user setting until it gets fixed propperly.
>  >
>  >
>  > If someone could lodge a bug report at:
>  > http://bugzilla.libsdl.org/
>  >
>  > That would be greatly appreciated.
>  >
>  > I think it's best to fix this properly in SDL_mixer... but for now the
>  > work around is to increase the default buffer size on a per computer
>  > basis.
>  >
>  > cheers,
>  >
>  >
>  >
>  > On Sun, Mar 23, 2008 at 8:54 AM, FT <chester_lab@xxxxxxxx> wrote:
>  >
>  >> Hi!
>  >>
>  >>     I think there was also an issue of pre-init for any init would wipe out
>  >>  any settings. So the pre-init was setup to prevent the loss of any settings
>  >>  besides the size of the buffer to hold the data. The issue comes up all the
>  >>  time and is in the specs on the mixer and sound. Where it recommends
>  >>  increasing the buffer size and warns about the init of pygame and any mixer
>  >>  settings.
>  >>
>  >>         Bruce
>  >>
>  >>
>  >>
>  >>
>  >>  Did you get scratchy sound playback with the same application on the
>  >>  same computer but pygame 1.7?
>  >>
>  >>  does it make a difference if you set the SDL_AUDIODRIVER environment
>  >>  string to waveout ?
>  >>
>  >>  On Sat, Mar 22, 2008 at 6:37 AM, Bo Jangeborg <bo@xxxxxxxxxxx> wrote:
>  >>  > I have just tried the RC5 build from
>  >>  >  http://www3.telus.net/len_l/pygame.htm .
>  >>  >  Graphicly everything seem to work well so far but the music output
>  >>  >  sounds really awful. Very scratchy sound.
>  >>  >  I am running on python 2.5 , Windows Vista, and the machine is
>  >>  >  an Intel core 2 cpu 6700 2.66 Ghz. Soundcard is a Soundblaster X-Fi.
>  >>  >
>  >>  >  My standard setting is pygame.mixer.pre_init(44100, -16, 2, 2048)
>  >>  >  Been trying different setting but it does not sound good, default
>  >>  settings
>  >>  >  was a bit better but still very scratchy. Any ideas ?
>  >>  >
>  >>  >  Regards
>  >>  >  Bo Jangeborg
>  >>  >
>  >>
>  >>
>  >>
>  >>
>  >> --
>  >>  No virus found in this incoming message.
>  >>  Checked by AVG.
>  >>  Version: 7.5.519 / Virus Database: 269.21.8/1338 - Release Date: 3/21/2008
>  >>  5:52 PM
>  >>
>  >>
>  >>
>  >
>  >
>
>