Time stretch audio/asyncmix feature in future build

[kenobizero]

What should happen

It would be better if ppsspp have this option to eliminate choppy sound on low specs

Who would this benefit

Developers

Platform (if relevant)

Android

Games this would be useful in

All psp games

Other emulators or software with a similar feature

Aethersx2,
mupen64fz, dolphin, citra. Pcsx2

Checklist

• Check the latest git build in case it's already implemented.
• Search for other requests of the same feature.

[anr2me]

If i'm not mistaken, you just need to change the pitch to follow the performance percentage, thus the sound will be low pitch on slow performance and high pitch when fast forwarded.

[kenobizero]

So you mean I have to change the volume about 30 percent to reduce the crackling sound ?

[hrydgard]

No, ANR2ME is suggesting what PPSSPP could do. PPSSPP actually already does this to a small extent to cover up small deviations from the intended emulation speed, but limits itself to a few percent, then the sound starts breaking up instead. Larger frequency shifts will sound odd, instead we'd need a chop-and-overlap time stretcher or similar.

[ghost]

Duplicate of #8412

[kenobizero]

Maybe this will take a time, I hope this feature will be added on ppsspp thank you for explanation
I will close this

[ghost]

There's is an attempt #8717 but no good results :(