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snes9xgit / snes9x

Snes9x - Portable Super Nintendo Entertainment System (TM) emulator
http://www.snes9x.com
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Snes9x Noise #867

Open NEStalgia-BR opened 1 year ago

NEStalgia-BR commented 1 year ago

The emulator generates a short "high-pitched" noise in some moments of some games that are running.

To prove it, I'm adding 2 links to videos I recorded:

Game: Moto-X. Noise in the second countdown red light: https://youtu.be/rAp-3vZ_na0?si=K0k4lGRkDWzSp2X7

Game: Cybernator. Noise from the 10:29 minute of the video and at other times, such as at 24:16: https://youtu.be/oQqJB-nrCrc?si=Dq5rtnzTC6WL9o3t

The bug happens both in the mobile version of Snes9x Ex+ and in the PC version 1.62.3 of Snes9x, with the Moto-X game. To cause the bug, just start a race in the game and the noise will happen in the start countdown, as shown in the video👆. Thanks for your attention and congrats on the project.

bearoso commented 1 year ago

This might be because DMA causes more than a frame to run in S9xMainLoop and the synchronization is wrong and audio buffers collapse. This also happened in Chrono Trigger when you went to the menu. Snes9x Ex+ will have to fix that, but I thought I got all the cases in the PC version. Can you post your config file?