Option to timestretch audio, keeping it smooth(er) when running slowly

[hrydgard]

Simply grabbed the timestretcher that Citra are using now, and integrated it in a hacky way.

TODO: Make it an option, make it more stable (it's quite "drifty"), make it smarter when ratio changes very quickly like during a load or sudden slowdown.

Alternatively, try to implement a different algorithm. The interface to Soundtouch is not really what we want - I want to be able to say "I gave you these samples, now I want this other number of samples to fill the gap" and it should give it to me, instead I need to dynamically adjust the ratio. Maybe that's equivalent though...

[unknownbrackets]

Not sure what this is but I think you don't want it.

-[Unknown]

[hrydgard]

No idea. Force-pushed it away now.

[daniel229]

Crash on reopen game.

[finansar222]

เล่นเกมติดขัด และเสียงแตก

[zminhquanz]

Please update this in next version ( 1.4.0) , to improve game experience when emulator speed is slow on older device

[zminhquanz]

please merge and approve this 👍

[hrydgard]

I think I'm gonna make it an option. It has some drawbacks (worse latency, etc).

[zminhquanz]

I think so :)

[hrydgard]

Rebased.

[iOS4all]

@hrydgard when you'll merge this please? Maybe it could help somehow.
And yeah it's better to make this merge like an option to avoid some issues maybe. I mean if you feel you need it you have to enable it. If you don't just disable it.
Thanks.

[hrydgard]

So, this does not work fantastically well yet, but I'll merge soon anyway so people can play around with it.

It's not very quick at adapting to changing rates, not sure what I'm doing differently to what Citra is.

[hrydgard]

Well, at least in 1.6.3 less games will run slow than in 1.5.4 , reducing the problem a little :)

But yes, this needs work. I don't think I'm gonna use that resampler library, it was unwieldy, unstable and high latency..

[ghost]

So it will look like this?😮

[NotUnknownbrackets]

Can't wait for 1.8.

[hrydgard]

Yeah I know I've just been pushing this forward but it's a tricky one. It will happen in one form or another eventually.

[Narugakuruga]

Why Citra but not Dolphin 🤔?

[marosis]

We Are still waiting

[ghost]

Sad I thought this is gonne go through v1.9.0 :(

[hrydgard]

I haven't been able to get it to work well and stable unfortunately.

[ghost]

@hrydgard Sir will you release v1.9.0 this month or September?

[hrydgard]

September is more likely.

[Panderner]

What about v1.10.0 or the future @hrydgard? You forgot it

[TheRobis]

Please, kind sir @hrydgard I really really need this :(

[orbea]

@hrydgard When you have time would you mind rebasing this PR so I can test to see how much it does or does not help issue #12705?

Or am I barking up the wrong tree?

[hrydgard]

I never could get this to work stable (it would always crash after a while). Dunno if I was misusing the time stretcher library or what.

I'll make another try someday if noone else beats me to it - maybe it's possible to get fairly close with simpler approaches, too.

[hrydgard]

Closing this one, will do another attempt at some point.

[NotUnknownbrackets]

😢