Re: [hatari-devel] Circuit Analysed YM2149 Sound is Here

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

On 18/12/2011 10:29, David Savinkoff wrote:
> Hi,
>
> This patch allows you to use the SDL Menu to select and compare:
> - Circuit analysed YM2149 in the ST/STE/TT/Falcon (best sound)
> - Volume Table method (second best sound)
> - Linear method - renamed to ZX 128 (best for Spectrum ZX 128)
>
>
> Listen to the sh11inv demo!
> Please include in Hatari.
>
> Thanks,
> David

Hello

thanks for this patch, I applied it after changing a few things :

 - I prefer keeping "linear" instead of ZX 128, as we're in Atari's 
emulation, I'm not sure it would make sense to many users

 - I replaced the YM_YM2149_MIXING with YM_MODEL_MIXING to better 
emphasize the fact that this is a mathematical model of the YM2149

 - I also had to make the sound dialog a little bit larger to put all 
the texts in it.

Hope that's fine with you ; result sound nice with YM50K (a little less 
noise sound than with "table" mixing).

Regarding low pass filters, musics from Count Zero often give 
interesting results to hear the filter. Some of his sounds are really 
high freq, for example the Decade Demo boot intro and then the main 
intro (after the countdown) ; after a while, there're some really sharp 
sound that take advantage of the filters.

Nicolas