Re: [hatari-devel] Audio/video sync regression in dev-builds

[Anders Eriksson <evldhs@xxxxxxxxxxxxxx>]

------- Original Message -------
On Friday, May 20th, 2022 at 2:25 PM, Nicolas Pomarède <npomarede@xxxxxxxxxxxxx> wrote:


> Le 19/05/2022 à 16:45, Nicolas Pomarède a écrit :
>
> > For the 2nd issue with STE DMA sound being not in sync too, this is in
> > fact similar to the same problem there was with your "More or less zero"
> > demo. It was fixed back then, but the new code in hatari dev doesn't
> > take into account that the STE has a slightly different clock for the
> > YM2149 compared to the CPU (on STF they're the same).
> > This should be fixed soon I think.
>
>
> Hi
>
> this issue should be fixed now too.
> Different clocks between CPU and YM2149/DMA Audio are now correctly
> handled when computing YM2149's clock changes.
>
> From what I hear with SMFX/DHS "The (fucking) (complex) Art of
> Profanity" demo, all the samples are correctly played now during the
> whole demo
>
> Note that precision is not optimal yet, I see a slight deviation that
> could be improved, but I think it's 99% good enough already and should
> not give hearable artefacts.
>
> Thanks for reporting theses 2 issues, I must admit that after rewriting
> the YM2149 emulation I did not run some precise enough tests/traces to
> show this slight change in number of samples per VBL (less than 0.2 %,
> but hearable after a while)

Hi!

I've downloaded Troeds latest build for macOS and I can confirm that both regressions are fixed (tested with macOS 10.14 x64).

Thanks a lot and awesome work Nicolas!


--
Anders Eriksson
ae@xxxxxx