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Re: YM2149
Posted by: evil Jun,02.2024-16:50 

Paranoid is correct, you can do volume changes without mixing the internal pulse. So it's 100% software generated. Some sample players do that, some set the internal period to 0.

The two examples I wrote are 1) 4-bit sample with max 15 volume levels 2) 8-bit sample with volume setting to each channel. By converting the sample data to this code will run at the speeds I mention. No interrupts or anything, just a massive list of code.

But it's all useless with these high rates and/or large code it generates. However, I can't think of a faster way to do that (now waiting for tIn to arrive with a completely different idea that is much quicker :).

Anders Eriksson

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Topic Posted by  Date 
YM2149 AdamK May,31.2024-21:18
  Re: YM2149 evil Jun,01.2024-19:31
    Re: YM2149 Cyprian Jun,01.2024-23:09
      Re: YM2149 evil Jun,02.2024-10:57
        Re: YM2149 Paranoid Jun,02.2024-11:13
          Re: YM2149 AdamK Jun,02.2024-11:36
            Re: YM2149 Cyprian Jun,02.2024-13:11
              Re: YM2149 Paranoid Jun,02.2024-13:50
                Re: YM2149 evil Jun,02.2024-16:50
                  Re: YM2149 Cyprian Jun,02.2024-18:13

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