lost world jurassic park music problems

[yoshi200214]

hello
the video game lost world jurassic park has problems with the music
the music is incorrect compare to real hardware and previous versions of supermodel
emulator:
https://youtu.be/JZkoVeL0jkU?si=o3hfvL7iNjyCU8gE
real hardware:
https://youtu.be/37jLjtLNCeQ?si=QrGg1cEpmxImNHGN

[BloodRaynare]

Works fine here

https://streamable.com/r3fvfh

Check your audio "Balance" settings.
You're probably set it to something negative. Set it to 0 and the music should play fine.

[ghost]

Warning:
When I got a new laptop with Dolby sound, I found adjusting the balance no longer helped. Eg. The pit crew boss in Daytona was quiet again. Turning off Dolby processing fixed the problem.

[yoshi200214]

I put the balance to 0 but did not fix the problem.
this problem is a regression
i test other games and the music is fine
but this game not

[trzy]

Can you identify the commit at which this broke?

[yoshi200214]

I don't know

[yoshi200214]

I tested in the last version of supermodel

[yoshi200214]

I tested with speakers but did not fix the problem I have a windows 11 computer without license

[trzy]

Please identify the build in which it broke. You can go through the old builds using a binary search strategy. Otherwise, there’s not much we can do here to help you.

[yoshi200214]

It is broke in the build 0.3a-git-21e1485

[trzy]

Thank you. There was indeed a commit right before that which changed the behavior of MIDI IRQs: 7d32bde

We will need to look at this further.

[ghost]

I had another play with this, it does seem to be a sound processing issue on the host machine.
I have a newer slimmer laptop with crappy smaller speakers, so it has Dolby Sound to compensate.
Dolby sounds bloody awful, but it's better than not having it, as you can barely hear anything otherwise.

It seems Dolby must set up some kind of virtual surround that tricks Supermodel into thinking you have 4 speakers.
Supermodel must then split the channels for a quad set up, instead of downmixing to stereo.
You end up losing the rear channel sounds in some games, the music 'fullness' in Lost World, or the pit boss in Daytona etc.

Rather than turning off Dolby or whatever sound processing you might have, the simple solution seems to be to force the stereo downmix with the command

-channels=2

Adding that to your launch command seems to bring the sounds back.