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 <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> 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 > >> > >> > >> > > > > > >
