Android high latency

[kraftwer1]

I'm playing a short sound effect on touch. It plays immediately on iOS, but has a noticable lag on Android (I estimate around 300ms). The same happens using the default Bevy audio (which uses rodio I believe). I've seen that there might be a way to fiddle around with buffer sizes in kira, see: https://docs.rs/kira/latest/kira/manager/backend/cpal/struct.CpalBackendSettings.html#structfield.buffer_size. The page even mentions that "the default buffer size might be surprisingly large, leading to latency issues". (It seems this is even being discussed on Bevy: bevyengine/bevy#13876).

However I'm not sure how to access those settings from within Bevy or the plugin.

Or there might be other solutions as well? Do you have any tips or hints?

Possibly related: #79

[kraftwer1]

Hmmm I've tried kittyaudio which allows to override the cpal buffer size and the sample rate. I've tried 8bit and 22_100hz without any noticable difference. It might even be cpal or oboe. Found this: RustAudio/cpal#890.

[NiklasEi]

Have you tried patching cpal with RustAudio/cpal@master...Rodrigodd:cpal:oboe-low-latency from the issue above?

[kraftwer1]

Thanks. I gave it a try and indeed it plays a bit sooner – I estimate an improvement of 300ms => 200ms. However, it's still unusable for my use case (SFX when shooting a laser). Meanwhile I think this probably does not belong here but either to cpan, oboe-rs, or even oboe. If you don't have any other ideas, I'll close the issues.

(cc @Rodrigodd).