SB16 Vibra +1 tone \ VOGONS

SB16 Vibra +1 tone

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First post, by broke303

broke303 Offline

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Rank: Newbie
Posts: 2
Joined: Yesterday, 14:46

Hello, long time lurker here.

I've recently bought an ISA SB16 Vibra - CT2501-TCQ (branded Acer Magic s30) with a Yahama YMF262-M OPL3 chip on board.
As I was testing it on Windows and Dos Games, I realized that something was wrong: every song is played with a higher pitch.
It's like everything is being pitched up by 1 tone. I've already tried with different drivers, Windows 98 and Dos 6.22 but I can't seem to find a solution.
Is anyone stumbled upon something like this?
Thank you.

Reply 1 of 2, by wbahnassi

Posted on Yesterday, 22:29

wbahnassi Offline

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Joined: 2020-06-03, 00:45

I don't have that same model. I have the CT2890 Vibra16 S, which also has OPL3 and is PnP. It plays fine and dandy though. Didn't notice any issues with pitch or speed of FM.
It could be some electronic component going off the mark (crystal oscillator or a cap maybe?) Is digital sounding alright?

Turbo XT 12MHz, 8-bit VGA, Dual 360K drives
Intel 386 DX-33, TSeng ET3000, SB 1.5, 1x CD
Intel 486 DX2-66, CL5428 VLB, SBPro 2, 2x CD
Intel Pentium 90, Matrox Millenium 2, SB16, 4x CD
HP Z400, Xeon 3.46GHz, YMF-744, Voodoo3, RTX2080Ti

Reply 2 of 2, by broke303

Posted on Today, 13:32

broke303 Offline

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Rank: Newbie
Posts: 2
Joined: Yesterday, 14:46

wbahnassi wrote on Yesterday, 22:29:

It could be some electronic component going off the mark (crystal oscillator or a cap maybe?) Is digital sounding alright?

Yes, my fear is that something is going on with the oscillator or a cap like you said... However, digital sounds perfect.
Man I was hoping that there was an easy solution, like a jumper that i didn't see ahah
Thank you for your reply!

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