Re: [pygame] Pygame Mixer Crackle noise not an SDL_Mixer problem

[etrek]

I removed SDL_AUDIODRIVER  and then  set SDL_VIDEODRIVER=directx, but the 
crackling and wierdness came back.


  ----- Original Message ----- 
  From: Brian Fisher 
  To: pygame-users@seul.org 
  Sent: Sunday, April 20, 2008 10:55 PM
  Subject: Re: [pygame] Pygame Mixer Crackle noise not an SDL_Mixer problem


  I wonder if it could also be related to a mismatch between audio driver and 
video driver?
  does SDL_VIDEODRIVER=directx also fix things?


  On Sun, Apr 20, 2008 at 8:23 PM, etrek <[EMAIL PROTECTED]> wrote:

    Yeah, don't mess with your DirectX 8 setup.

    I tried setting the env var SDL_AUDIODRIVER=waveout  as you mentioned in
    your previous email.  Yes it does clear up the audio in Pygame.  I'm still 
new to Pygame/SDL,
    so correct me if I'm wrong:  Setting this variable to wavout causes Pygame 
Mixer
    to use software audio instead of hardware?

    While the crackling noise is gone, there is a slight delay now in 
bouncesound.py (Chap 10)
    when the ball hits the ground/wall and the bounce sound plays.

    Do you have Pygame 1.8 on your Win98 machine?

    Let me know if I can help or anything I can do.  Just keep in mind that I'm 
new
    to Python/Pygame; I'm starting to play around with Boost.Python.

    -Ethan
    Python ROCKS!





    ----- Original Message ----- From: "Lenard Lindstrom" <[EMAIL PROTECTED]>
    To: <pygame-users@seul.org>

    Sent: Sunday, April 20, 2008 6:34 PM

    Subject: Re: [pygame] Pygame Mixer Crackle noise not an SDL_Mixer problem



    I tried jukebox.py on my slow Windows 98 computer with DirectX 8 and it 
sounded
    fine. I also altered waveIt to initialize SDL like Pygame would:

    SDL_Init(SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE);
    SDL_InitSubSystem(SDL_INIT_VIDEO);
    SDL_InitSubSystem(SDL_INIT_AUDIO);

    This also sounds fine on the XP machine. I also reversed the order of
    video/audio initialization. So that leaves these three factors: Windows
    XP/Vista, Pygame 1.8 and DirectX 9. I am hesitant to install DirectX 9 on my
    Windows 98 box in case it breaks everything and I am unable to revert back 
to
    DirectX 8. So I am out or ideas for the moment.

    Lenard


    Quoting Lenard Lindstrom <[EMAIL PROTECTED]>:



      Thanks. I tried the jukebox.py example. It sounded awful (getout.ogg).

      Python 2.5
      Pygame 1.8.1pre
      XP Professional (51., Build 2600)
      Dell DM051
      Phoenix ROM BIOS PLUS Version 1.10 A05
      Intel Pentium D CPU 2.80GHz (2 CPUs)
      1014MB RAM
      DirectX 9.0c (4.09.0000.0904)
      Intel 82945G Express Chipset Family video (Internal) 224.0 MB
      SigmaTel Audio

      It crackled and played at half-speed. Changing the audio driver to waveout
      "set
      SDL_AUDIODRIVER=waveout" cleared everything up. Could it be a DirectX 9
      problem
      (not properly DirectX 5 compatible). I will try this on my Windows 98 Dell
      with
      DirectX 8 for comparison.

      One thing I noted, Pygame initializes the video and audio separately while
      all
      the C/C++ programs I have seen so far do everthing in the call to 
SDL_Init. I

      will try instializing SDL subsystems instead to see what happens.

      Lenard




      Quoting etrek <[EMAIL PROTECTED]>:

      > Hi Lenard,
      > You can download the media/Pygame scripts for the Book from:
      > http://apress.com/book/downloadfile/3765
      >
      > Chapter 10 has the audio example scripts; a bouncing balls script, and a
      > jukebox.py script that plays .ogg files.
      > The jukebox.py script is very simple, it comes with "please put some > 
.ogg
      > file in the music folder", you can add the getout.ogg file to the media
      > folder for the jukebox.