Nice work!

- Alex

Cool stuff! Thank you for adding this feature! It's very nice to have an alternative to emulated FM music(which I have no complaints about).

What kind of cables and other hardware is needed to use this with and without SOFTMPU?
If anyone could add some photos, I would appreciate it.

vico wrote on 2024-01-12, 17:06:

What kind of cables and other hardware is needed to use this with and without SOFTMPU?
If anyone could add some photos, I would appreciate it.

One needs a 8-pin Mini-DIN to DE9 cable like Hosa DBK-103 which is compatible with Roland, Yamaha and Korg synthesizers.
Details of the cable https://hosatech.com/wp-content/uploads/2013/ … -100_Pinout.pdf

Serial can to sent direct to an mt32-pi
I’ve used it with softmpu

Would it be possible to implement port remapping for real OPL and MPU-401 interfaces like RemapCMI does?

This would be useful for when using a sound card like the CMI 8738 or the Yamaha YMF744 on a PCI bus not supporting subtractive decoding.

Would it be possible to implement port remapping for real OPL and MPU-401 interfaces like RemapCMI does?

Yes, I got it working with a YMF744. It probably isn't possible with a 724.

Try the attached SBEMU.EXE (for YMF744/YMF754 only)
You should try a lower volume than usual, since the volume setting only works for your other card (usually HDA)
Something like this:
sbemu /MCOM1 /I7 /VOL5

Analog out isn't working, but S/PDIF out is!
You can mix (externally) the normal SBEMU sound effects from HDA with the hardware FM output from the YMF744.
MIDI will be output through the game port, but you might still need an actual serial port or sbemu won't start.
EDIT: you can use FM (but not MIDI) without a serial port, if you omit the /MCOM option

jiyunomegami wrote on 2024-01-17, 23:07:

Yes, I got it working with a YMF744. It probably isn't possible with a 724.

Thanks! Now I have to pick up one of me YMF744 cards from storage.

You are right about the YMF724, it doesn't seem to make OPL3 and MPU-401 available in the PCI address range when I tested. No mention of it in the datasheet either.

Analog Line-out works now, and you can use /MCOM9 to not use a serial port.

I made some improvements:
(1) Now the S/PDIF status bits are set correctly. The copyright bit is set
to OFF, so you should not have any trouble recording.
(2) Enabled the ADC for the analog inputs.
(3) Unmuted Mic, Video, and Aux analog inputs.

On my card, Mic, CD, Video, and Aux all get mixed into the digital S/PDIF output, although the volume is rather low.
When mixing in the SBEMU sound blaster output from HDA, I use the maximum SBEMU volume /vol9 for S/PDIF, and /vol6 for analog.

Analog input volume levels are set as below.
On my card, Line-in doesn't get mixed into the output.

Microphone 70% (mono)
Line-in 70% but may not work
CD 70% (stereo)
Video 100% (stereo)
Aux 100% (stereo)

BTW, don't try and use the Yamaha drivers with this.
They won't work with QPIEMU.DLL loaded.

Hello, can you help me? I have old laptop IBM ThinkPad 760E and I want to use sbumu only for redirecting MIDI to COM port for protected mode games (DOOM ....)
When I execute hdpmi32i and then sbemu /mcom2 or sbemu /mcom:2 I see, No supported sound card and qemm not installed, disabling real mode support

Is it problem only in qemm or I must have some compatible PCI sound card, even if I want only redirect MIDI to COM port?

BTW, my toolchain EMM386 + softmpu /mpu:330 /output:com2 + non protected mode games like lost vikings is working perfect.

Thank you.

My Roland for this setup is small nice device Roland PMA-5 (GM/GS compatible)

jiyunomegami wrote on 2024-01-21, 17:44:

I made some improvements: (1) Now the S/PDIF status bits are set correctly. The copyright bit is set to OFF, so you should n […]
Show full quote

I made some improvements:
(1) Now the S/PDIF status bits are set correctly. The copyright bit is set
to OFF, so you should not have any trouble recording.
(2) Enabled the ADC for the analog inputs.
(3) Unmuted Mic, Video, and Aux analog inputs.

On my card, Mic, CD, Video, and Aux all get mixed into the digital S/PDIF output, although the volume is rather low.
When mixing in the SBEMU sound blaster output from HDA, I use the maximum SBEMU volume /vol9 for S/PDIF, and /vol6 for analog.

Analog input volume levels are set as below.
On my card, Line-in doesn't get mixed into the output.

Microphone 70% (mono)
Line-in 70% but may not work
CD 70% (stereo)
Video 100% (stereo)
Aux 100% (stereo)

BTW, don't try and use the Yamaha drivers with this.
They won't work with QPIEMU.DLL loaded.

I second the question above. Would be very useful to have the ability to redirect only the MIDI portion on computers without a sound card compatible with sbemu

@jiyunomegami would it be okay if we added you as a maintainer/developer to the SBEMU project on GitHub?

I admit, the project has gone quite neglected lately, since @crazii went off the radar again.

I should really be taking a look at any pending Pull Requests. But I've also tried to set up a reliable CI/CD pipeline and got stuck at some point there. Maybe I should dust that off and help breathe new life into the project.

To be honest, however, @baron-von-riedesel has been doing a lot of good work on VSBHDA in the meantime. It made me wonder what added value SBEMU might still have.

But it would be a shame if your improvements went unmerged.

Let me know, and thank you for your work on improving SBEMU!