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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] Jam-player on Falcon mono?
- From: Anders Eriksson <evldhs@xxxxxxxxxxxxxx>
- Date: Tue, 20 Aug 2024 20:10:45 +0000
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On Tuesday, 20 August 2024 at 21:46, Eero Tamminen <oak@xxxxxxxxxxxxxx> wrote:
> Hi,
>
> On 15.8.2024 18.39, Anders Eriksson wrote:
>
> > On Tuesday, 13 August 2024 at 01:00, Eero Tamminen oak@xxxxxxxxxxxxxx wrote:
> >
> > > I tested Jam-player: https://www.creamhq.de/jam
> > >
> > > And while it works otherwise fine, music timings are broken in Falcon
> > > mono mode (-m), regardless of which plugin [1] is used.
> > >
> > > Music sounds OK both with Falcon + color, and STE + mono, but not with
> > > Falcon + mono. Is that Hatari emulation or Jam-player issue?
> > >
> > > [1] Tested with SID, SNDH, MIDI and MOD (PT 3.0) plugins, last one both
> > > with CPU and DSP plugin versions.
> >
> > The latest version of Hatari have Falcon audio regression. I made a report before it was released.
> > It's more noticeable in some VBL frequencies than other, but the sound skips or repeats (hard to tell). I didn't try with a 71 Hz mono back then, but it's likely that it will give similar results.
> >
> > Perhaps worth to try Hatari 2.4.1 and see if JAM works better?
>
>
> It's possible there's some minuscule difference in Jam playback between
> Hatari 2.4.1 and Hatari Git, but it all pales between the differences
> between using color & mono monitor with Falcon emulation.
>
> In Falcon mono, Jam sound is completely broken regardless of Hatari
> version => somebody either knowing whether Jam is supposed to work OK in
>
> Falcon mono, or being able to test it on real HW would be nice...
Jam works fine with a 71 Hz monochrome monitor on a real Falcon.
I don't have a SM124 but I'm using Ataris DIN13 (ST video) adapter with a ST-VGA adapter set to mono. The monitor shows 71 Hz refresh on it's resolution info and in TOS all options in the resolution selector are greyed out, I'm confident it's running real ST MONO mode.
The diff in Hatari 2.4.1 and 2.5.0 is pretty big, I've reported this several times and Nicolas confirmed it prior to 2.5.0 release (skipping and/or repeating audio). But it has to do with Falcon PCM sound, not MIDI timing.
As for monochrome monitor and Falcon emulation in Hatari, I found that the emulation slows down immensely compared to RGB and VGA setting.
I replied you on the the Atari forum with a video etc.
https://www.atari-forum.com/viewtopic.php?p=467927#p467927
--
Anders Eriksson
ae@xxxxxx