Re: [hatari-devel] Improved YM2149 cycle accuracy

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 27/07/2021 à 21:48, David Savinkoff a écrit :
> On Tue, Jul 27, 2021 at 6:01 AM Nicolas Pomarède wrote:
> > Hi
> >
> > I tried your patch and the sound is slighly less "sharp", as if some
> > high freqs were more filtered, but the difference is not huge (you can
> > check in STF mode with syncsqu.snd I attached earlier)
> Here is a sharper sounding STF
> The only lines changed are:
> (line 448 of sound.c)
>
> +    /* R8 Pull down: fc is approx 3000.0 Hz (at 250 KHz rate) */
> +        y0 = ( 37*(x0 + x1) + 950*y0 ) >> 10; /* b= 37/1024 a= 950/1024 */


I tried this change, but this sounds like previous patch from you 
sound.c.2.diff, I can't really hear it's sharper.