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GBA Audio: PSG sound channel 3 sounds different than on actual hardware in Battle Chip Gate Homebrew #2947

StraDaMa opened this issue Jun 12, 2023 · 0 comments


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StraDaMa commented Jun 12, 2023

I'm not sure how different the other PSG channels are, or if other games are affected. But the example I have is for PSG channel 3 of the start jingle in Battle Chip Gate Homebrew. I've recorded just PSG channel 3 of the start jungle on a real DS lite (using an aux cable), VBA, and mGBA 0.11-8127-17a549baf. The VBA and DS recordings are the most similar, while the mGBA one sounds off. I can't record a real GBA without the recording being super noisy, but it sounds like the DS one.

To reproduce this:

  1. Run the included homebrew that's been modified to only play PSG channel 3 of the start jingle.
  2. Pick any game
  3. Press Select to skip the "waiting for a connection" check
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