Audio crackling/dropout (or micro-freezing game?) in Legend of Kyrandia 1

[mrmatteastwood]

Steps to Reproduce:

1. Get latest ScummVM build from here: https://github.com/hunterk/libretro_builds
2. Get latest ScummVM system files from here: https://github.com/hunterk/libretro_builds/raw/master/scummvm_system_files.zip
3. Run LoK1 on latest RA (1.12.0)

Current Results: There are very noticeable audio dropouts, crackling audio and what appears to be micro-freezing during the game's intro (first minute or so) and also, to a lesser extent, later in the intro and during gameplay. Video: https://youtu.be/Esje0_IlCAs

Expected Results: The game should run without issues.

Notes:

• @hizzlekizzle suggests increasing the audio buffer here: https://github.com/diablodiab/libretro-scummvm-backend/blob/main/libretro.cpp#L474. See his post here: https://github.com/libretro/scummvm/issues/179#issuecomment-1288315200
• Audio issues are worst during the first minute or two, but dropouts still occur later in the game as well, e.g. in the scene with Kallak and Malcolm.
• Encountered on my two PCs running Linux Mint 21 and Windows 10.
• Issues also occur when I turn off the fancy shader seen in the video.
• You can see from the shader's noise filter that the game actually micro-freezes, at least at some points.

[mrmatteastwood]

Closing. I just realized this belongs on libretro-scummvm-backend. Reported there: https://github.com/diablodiab/libretro-scummvm-backend/issues/27