GP32 Different Samplerates In Mirkos

[Blah]

My program has some sound effects that are 11.025khz, 8bit mono, and the gp_addsample function only supports 22050khz 16bit mono or stereo. I know some of you must have modified Mirko's code to support more samplerates, I know DrMD does it. I don't think I'd need to keep the mod support, so if its just a quick hack that just happens to break that part of the code, it'd work for me. I *could* just convert the files, but I don't want a 5mb fxe Any help?

 

[mr.mirko]

Look at mixermod.c,

change gp_initSound(22050,16,SEGMENTSIZE*2);
to: gp_initSound(11025,16,SEGMENTSIZE*2);

So you can now use 11.025khz samples, 16 bit, mono or stereo.

 

[Blah]

What about 8bit? That would help a lot. I tried modifiying it to 8 bit in the same way, but it didn't work.

 

[pea]

dunno if I need to ask, but did you recomile the SDK (src.lib) and (lib) after you modified the source?

 

[Blah]

Well, no. What I did instead was include mixermod.c, that should work, right?

 

[Blah]

Well, now 11.025khz 16bit works, but not 11.025khz 8bit. Changing 16 to 8 just makes garbage come out of the speakers.

edit:
Hmm...Telling it that it is 5512.5 (11025/2) 16bit seems to work. But it sounds a little muffled...weird.

 

[mr.spiv]

you could use mlib sample playing functions.. they are for 8bits mono samples at any rate :blink:

 

[mr.mirko]

Well, now 11.025khz 16bit works, but not 11.025khz 8bit. Changing 16 to 8 just makes garbage come out of the speakers.

edit:
Hmm...Telling it that it is 5512.5 (11025/2) 16bit seems to work. But it sounds a little muffled...weird.

​

Yes, the Problem is that i wrote only a 16Bit mixer, just changeging it to 8Bit is not working
But why not add the missing 8Bit to 16Bit conversion ? Its only (i think) <10 lines of code

 

[Blah]

Well, I'll try MLIB when I get around to it, and if I can't get that to work, then I'll modify the mixer.