[Openal] sound corruption when replaying buffers

[Garin Hiebert]

Copying the list on the email, and responding at the same time...

One more question, and then some debugging can begin:

1)  When the problem occurs, is the buffer format changing (sample rate is
what I'm most worried about..)?

Garin

-------- Original Message --------
Subject: Re: [Openal] sound corruption when replaying buffers
From: "vic viper" <megaz0ne23 at hotmail.com>
Date: Wed, June 30, 2004 10:19 am
To: garinh at turkeytrot.dhs.org


Hi, thanks all for the replies, here's what I've done:

- completely deleted openAl install from win/system  (openal.dll and
wrap_oal.dll)

- reinstalled OpenAlwEAX.exe from Creative Labs

- tested the game both with DirectSound3D and DirectSound devices.

environment:

alcGetString:
  vendor: Creative Labs Inc.
  version: OpenAL 1.0
  renderer: Software
  extensions: EAX 2.0, EAX 3.0, EAX 4.0, EAX Unified, and EAX-AC3   (I'm
not
using any yet)

DELL Pentium 2000mhz, windows XP, DirectX9.0b, SounBlaster Live!

results:

as you stated, MMSYSTEM and DirectSound does not have that problem, I
don't hear at all the artifacts I was hearing with DirectSound3D , so it
might be  a DirectSound3D device
bug.

to be more precise, and help try to recreate the problem, try playing a
source with a buffer, and when it has already played 30%, stop it, and
inmediately replace all the positional parameters with completely
different  ones (position, velocity, ref_dist), leave buffer data the
same... and play  it again... in my code this is very noticeable when I
have about 20 objects  trying to make noises (gunshots) in a 6 channel
pool, because they stop each  other continuosly.

I just noticed that "renderer: software" ... how can enable "hardware"
rendering?

Also, in the past I've tested with DirectSound the same channel pool I'm
 trying to use now, with good results... so unless I've done something
dumb,  I don't know what can be... (I've been working with openal for
only a week)

hope all that info will help solve the problem