No audio in ScummVM game

[Alex St. Louis]

So using an old build of the Emscripten port of ScummVM (Done by Jukka Jylanki) managed to get a few games running:

Spy Fox

Pajama Sam

Curse of Monkey Island (demo)

All of them worked great, except for Curse of Monkey Island, which seems to have audio issues. Upon investigation, it seems like a custom audio engine called iMuse is used in this game. Either that, or the underlying audio API used in this old version of Emscripten could be causing the issue. Does anyone have any thoughts on this?

Thanks!

https://github.com/juj/emscripten-scummvm

[Floh]

If "audio issue" means that there simply is no audio, than the issue might be that the audio playback is blocked by browsers (at least Chrome is quite aggressive about this, with the original intent to block autoplaying videos and audio streams).

In Chrome you should see a message like this in the Javascript console:

cpc.js:53 The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://goo.gl/7K7WLu

In my own WebAudio wrapper lib I'm using this "hack", which resumes the audio context on the first mouse, touch or key event:

https://github.com/floooh/sokol/blob/d86d96625d6be0171c99909187e041ae699dbbf0/sokol_audio.h#L1333-L1343

Cheers,

-Floh.

[Alex St. Louis]

I think that might be it. Here's a demo that you can try out btw:

https://classic-arcade.itch.io/curse