Add support for Metaltech Battledrome *.HMP / Manually change playback speed

[Jenetrix]

Metaltech Battledrome *.HMP files playback incorrectly, at roughly 2x the normal speed, in foo_midi compared to their Metaltech Earthsiege *.HMP counterparts. libADLMIDI also does not have the ES Expansion or BD soundbanks which are distinct compared to the stock ES one.

foo_midi 2.10.0.0, LibADLMIDI

see also: Wohlstand/libADLMIDI#279

[stuerp]

Without a copy of the files it is hard to fix this.

[Jenetrix]

ES Banks.zip
ES Music.zip
the games themselves have been freeware since 2015 so ill attach some examples here. contains *.hmp examples for all 3 as well as the sound banks.

[stuerp]

ES Banks.zip ES Music.zip the games themselves have been freeware since 2015 so ill attach some examples here. contains *.hmp examples for all 3 as well as the sound banks.

Thx. It seems the HMP/HMI don't have tempo information in them? Doubling the default tempo seems to fix the problem. I'll leave it like that for now.

https://github.com/stuerp/foo_midi/releases/tag/v2.11.0.0-alpha6

[Mohamed00]

Hi, this change caused issues with several HMP/HMI soundtracks. With this change, the soundtracks for games such as Descent, Descent 2 and Abuse now play at the wrong tempo. Here are some example files.
HMP.zip
References for how these tracks are supposed to sound.
Descent - game01.hmp
Descent - Game02.hmp
Descent 2 - Game01.hmp
Abuse - ABUSE01.HMI

[stuerp]

foo_midi adds a hard-coded tempo track before converting the sequence. Any tempo information coming after that should overrule the default.

Is there a way, that you know of, to determine the 'correct' tempo?

If there is none letting the user override the default seems to be the only solution.

[stuerp]

@Jenetrix ,

The default tempo for HMI/HMP sequences can be configured in alpha7.

[Jenetrix]

Setting tempo to 80 and setting the Bank to HMI (Earthsiege) gets it most of the way there. The Battledrome and ES Expansion tracks still sound slightly off due to using the incorrect bank as those are not options.

[stuerp]

Is there a more recent version that supports the banks? I'd rather not patch the code myself.