[hatari-devel] New ST(e) tracker bad audio

[Anders Eriksson]

On Wed, 15 Jun 2011, Nicolas Pomarède wrote:

> yes I think there're still some rounding errors or things like in ste dma 
> sound code. I'm trying to improve the precision for others bad quality in 
> some demos, so this will certainly benefit to this program too.
>
> By the way, could you test on a real STE the program DMA_TEST that Paulo 
> posted on http://atari-forum.com/viewtopic.php?f=28&t=20760&start=25 ?
> The value slightly change on each run, but I'd like to know what you get on a 
> PAL STE.


Hey hopp Nicolas!

I've run the DMA_TEST program ten times and got the same value each time: 
50016.

Additionally here are recordings from a real STe with Hextracker for 
comparison:

http://files.dhs.nu/party/outline2011/Dma_Sc-Hextracked-STe_Mono_12517Hz.mp3
http://files.dhs.nu/party/outline2011/Dma_Sc-Hextracked-STe_Stereo_10013Hz.mp3
http://files.dhs.nu/party/outline2011/Dma_Sc-Hextracked-ST_YM2149_Mono_10072Hz.mp3

As you can see it's the Dma-Sc zik he made for Outline music competition, 
16 channels.

http://files.dhs.nu/party/outline2011/ol2011stmod-dmasc-hextracked.zip

--
Anders Eriksson
ae at dhs.nu     http://www.dhs.nu/
ae at atari.org  http://www.atari.org/