Does that mean you can improve NukedOPL to be exactly like the hardware?

James-F wrote:

Does that mean you can improve NukedOPL to be exactly like the hardware?

Yes, it is already fixed in upcoming NukedOPL3 v2.0.

If you can/want/will, please provide a patch in .diff form when it's ready so it can be implemented in DOSBox ECE.

The current iteration of nukedOPL is already remarkably close to the original even in RTF measurements, I thought it was bit perfect already.

I cannot hear a difference between the 3 sound cards I recorded from. I ran the program under Windows 98 SE command.com

Stretch wrote:

I cannot hear a difference between the 3 sound cards I recorded from. I ran the program under Windows 98 SE command.com

Interesting results. YMF744 has real OPL3 so no question here. CMI8738 is believed to have real OPL3 and this recording confirm it. But ESS1938 is surprising. Perhaps they were aware of this bug. Does this card use hardware FM synthesis, or FM is emulated in software?

nukeykt, ESS Solo-1 has hardware FM synthesis. Here's a screenshot of the FM port settings in device manager.

Stretch wrote:

nukeykt, ESS Solo-1 has hardware FM synthesis. Here's a screenshot of the FM port settings in device manager.

How accurate it is? Or it is just ESFM?

Stretch wrote:

ESS Solo-1 has hardware FM synthesis. Here's a screenshot of the FM port settings in device manager.

Is that 2K/XP w/ classic theme or Win9x ?
I owned a TT-Solo and FM sounded not so well with the built-in XP drivers.

Here's the ALS4000 PCI sound card, the FM synth should be the same as the ALS120. Sounds legit.

Edit: Also added the FM801-AU, doesn't come close to the real deal...

Kamerat wrote:

Here's the ALS4000 PCI sound card, the FM synth should be the same as the ALS120. Sounds legit.

Edit: Also added the FM801-AU, doesn't come close to the real deal...

Added, thanks.

Fascinating results! Thanks for all your hard work, nukeykt, and the rest of you for running these tests.

Jo22 wrote:

Stretch wrote:

ESS Solo-1 has hardware FM synthesis. Here's a screenshot of the FM port settings in device manager.

Is that 2K/XP w/ classic theme or Win9x ?
I owned a TT-Solo and FM sounded not so well with the built-in XP drivers.

Windows 98 SE. When I installed the unofficial service pack I picked the Win2k theme.

Here are some MP2 recordings for you. Opti 82C931 and MediaGX.

Stretch wrote:

Windows 98 SE. When I installed the unofficial service pack I picked the Win2k theme.

Ah, okay, thanks ! 😀
Edit: Quote fixed. 😅

Jo22 wrote:

Here are some MP2 recordings for you. Opti 82C931 and MediaGX.

MediaGX sounded just like the SiS 7018. 😳 In Doom there's actually some noise. 🤣

I uploaded 2 more. Not sure why my recordings are so much lower than the others.

EDIT: I think we have to disregard these 2 because it seems my PC with ISA slots is not grounded properly.

Now the last major missing cards are YMF-262 and CQM.

One more recording. ALS100+, with built-in OPL3 (the chip can also be paired with an external YMF262). It's the "fixed" card used in this thread.

Kamerat wrote:

MediaGX sounded just like the SiS 7018. 😳 In Doom there's actually some noise. 🤣

Cool, thanks for letting me know! 😀
I guess this chipset was also used in Pentium III machines, since my dad's "year 2000" PC had a SB16 setting in BIOS.
https://en.wikipedia.org/wiki/SiS_630/730

And another one, again. ALS300 w/ built-in OPL3 core..

Creative "OPL", CT1747..

Thanks!