Custom sound settings in mame for ti99_4a for specific game

[spikey]

Hello everyone, I am using LaunchBox to play multiple different consoles with all my favorite games and love it, because I can use the best emulator for every console.

I tried in multiple ways to get MAME launched with custom parameters to emulate a TI99_4a with a per game specific setting, but failed.

All my TI99_4a games run perfectly, there is just one that I would like to increase its volume. With the sliders option in MAME I was able to change the ti99_4a.cfg file in the mame/cfg  folder. But I would like to only apply this channel volume for the game munchman.

What I tried:

1.  renaming the cfg file to munchman.cfg -> it looks like this only works for MAME arcade games not any console games
2. put a section in the config that was named <system name="munchman">
3. put a section in the config that was named <software name="munchman"> below the <system name="ti99_4a">
4. searched for command line arguments to override .cfg file settings
5. searched for ini parameters to control this slider setting

Thank you for your help.

PS: sorry, if this is the wrong category for the post, feel free to move and happy to be pointed to somewhere else.

<?xml version="1.0"?>
<!-- This file is autogenerated; comments and unknown tags will be stripped -->

<mameconfig version="10">

<system name="ti99_4a">

<image_directories>

<device instance="cartridge" directory="" />

<device instance="cassette1" directory="" />

<device instance="cassette2" directory="" />

</image_directories>

<input>

<keyboard tag=":" enabled="1" />

</input>

<mixer>

<channel index="1" value="1.800000" />

</mixer>

</system>

</mameconfig>

[JoeViking245]

6 hours ago, spikey said:

I tried in multiple ways to get MAME launched with custom parameters to emulate a TI99_4a with a per game specific setting, but failed.

All my TI99_4a games run perfectly, there is just one that I would like to increase its volume. With the sliders option in MAME I was able to change the ti99_4a.cfg file in the mame/cfg  folder. But I would like to only apply this channel volume for the game munchman.

You were on the right track.  You'll need to edit the specific game in LaunchBox and use game specific custom command line parameters.   In 'what you tried' #4, what you're looking for is -cfg_directory.  

This thread shows it being used for the NES softlist.