Gameboy Development Forum

I couldn't find any instructions directly pertaining to GBDK, but I found an .edu with instructions on playing samples using ASM. Downloaded an old DOS tool, converted a wav to mod and mod to gbw, output  hex from the gbw into the sample data and it played a bunch of distorted noise rather than the actual sound I was trying to play.

Evidently I have ZERO idea what I'm doing, could somebody help me understand how the process works from wav/mp3 to 16k samples in the code?

Thanks!

Edit: I can hear SOME remnants of the sound I'm trying to play when I listen closely, beneath the distorted mess. The samptest that came with GBDK works fine, so I took that hex, converted to binary, exported it as a wav and did the same process to that wav as I did to the previous wav. The resulting sound in the ROM was as crystal clear as before. Evidently the problem is in the sounds, so I guess my new question is what can and can't be used? Is it to do with the frequencies in the sound? The sample rate and bitrate are the same between all files I've been using. 4096hz, 32-bit float, exported as an 8-bit raw file, converted to hex.

Last edited by rail5 (2018-01-16 14:55:36)