vgmrips

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PostPosted: 2016-01-25, 23:22:10 
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PostPosted: 2016-01-27, 15:42:37 

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The volume command itself would be driver-specific. The chip itself only understands TL values for its operators, and in fact setting up instrument macros already include the TL values :P

So effectively the PMD driver does some equation to alter the carrier operators' TL values with respect to the desired volume value and their set TL values in teh instrument macro.

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PostPosted: 2016-01-27, 22:09:47 
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PostPosted: 2016-01-28, 7:20:47 

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I don't know how PMD calculates the volume, but SMPS does it in a pretty simple way:
For "modulator" operators it takes just the TL from the instrument.
For "carrier" operators it takes the instrument's TL and adds the channel volume.

There is a good chance that PMD does it in a similar way. I could also imagine that it uses some volume->TL conversion table then then adds the instrument's TL.


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