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Bug 2517

Summary: SDL2_mixer appears to not properly handle wav with frequency not matching MIX_OpenAudio argument
Product: SDL_mixer Reporter: pcpa <paulo.cesar.pereira.de.andrade>
Component: miscAssignee: Ryan C. Gordon <icculus>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2 CC: fran, i.gnatenko.brain
Version: 2.0.0   
Hardware: x86_64   
OS: Linux   

Description pcpa 2014-05-01 03:31:12 UTC 
$ rpm -q SDL2_mixer
SDL2_mixer-2.0.0-3.fc21.x86_64

I am making bindings to SDL2 and OpenGL to a language, and
to "validate" it, translating NeHe tutorials.
The sound in lesson 32 shows the problem.
http://nehe.gamedev.net/tutorial/picking_alpha_blending_alpha_testing_sorting/16005/

The problem does not happen with SDL_mixer 1.2, example:

$ file nehe/lesson32/Shot.wav
nehe/lesson32/Shot.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 8 bit, mono 22000 Hz

<<< works correctly >>>
$ playwave nehe/lesson32/Shot.wav 
Opened audio at 22050 Hz 16 bit stereo

<< plays only noise >>>
$ playwave2 nehe/lesson32/Shot.wav 
Opened audio at 22050 Hz 16 bit stereo

But I managed to get it to play correctly with SDL2 by passing
22000 instead of (MIX_DEFAULT_FREQUENCY) 22050 as first argument
to MIX_OpenAudio.
Comment 1 Francisco de la Peña 2014-09-23 16:45:55 UTC 
I guess this is a duplicate of bug #2389
Try with latest SDL Hg or wait until the SDL 2.0.4 release.
Comment 2 Sam Lantinga 2017-10-21 19:35:44 UTC 
Yes, this is fixed for the next release, thanks!