Mt32-pi zero, no sound.

Karmeck
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Mt32-pi zero, no sound.

Unread post by Karmeck »

So I bought this, supposedly pre-configured.
https://ultimatemister.com/product/mt32 ... or-mister/

And plugged it in, but get no midi sound. Using the Ao486 shareware pack. No sound without the mt32-pi either.

Trying to play some music in the built in midi player, the osd works and the bars jump up and down. So music is playing. But I hear nothing.

I had the fortune to have a few pins missing on my 6.1 io board. But I fixed pin 10. My understanding is that pin 3 is not needed.

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espo83
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Re: Mt32-pi zero, no sound.

Unread post by espo83 »

Do you see it in the OSD in the Ao486 core?
Karmeck
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Re: Mt32-pi zero, no sound.

Unread post by Karmeck »

espo83 wrote: Tue Mar 22, 2022 7:32 pm Do you see it in the OSD in the Ao486 core?

Yes.
rhester72
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Re: Mt32-pi zero, no sound.

Unread post by rhester72 »

Resolder all 9 P7 connection points *and* all 9 USB 3 connection points on the I/O board. Trust me.
bbond007
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Re: Mt32-pi zero, no sound.

Unread post by bbond007 »

Karmeck wrote: Tue Mar 22, 2022 6:12 pm And plugged it in, but get no midi sound. Using the Ao486 shareware pack. No sound without the mt32-pi either.

Trying to play some music in the built in midi player, the osd works and the bars jump up and down. So music is playing. But I hear nothing.
did you set this in the mt32-pi.cfg?

Code: Select all

[audio]
output_device = i2s
Karmeck
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Re: Mt32-pi zero, no sound.

Unread post by Karmeck »

bbond007 wrote: Tue Mar 22, 2022 10:11 pm
Karmeck wrote: Tue Mar 22, 2022 6:12 pm And plugged it in, but get no midi sound. Using the Ao486 shareware pack. No sound without the mt32-pi either.

Trying to play some music in the built in midi player, the osd works and the bars jump up and down. So music is playing. But I hear nothing.
did you set this in the mt32-pi.cfg?

Code: Select all

[audio]
output_device = i2s
I have yet to check this. Bought it from ultimatemister, and it's described as a pre-configured. Will have to check configuration file tomorrow.
Karmeck
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Re: Mt32-pi zero, no sound.

Unread post by Karmeck »

Possible issue has been identified.

The previous owner of this mister clearly did no use the serial port.

I have no jumper between the pins next to the serial port. Clearly this is standard issue on any newly purchased board, but with missing pins to being with, I guess this io board was not bought from any reputable seller.

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Mr. Encyclopedia
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Re: Mt32-pi zero, no sound.

Unread post by Mr. Encyclopedia »

I had a similar problem with my IO board, the SNAC port was missing the pins connecting it to the DE-10 nano. This seems to be a very common problem with boards bought from unknown sellers; I bought a MiSTer daughterboard kit from Amazon and have had problems with nearly every piece.
Karmeck
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Re: Mt32-pi zero, no sound.

Unread post by Karmeck »

Putting the jumper back on the pins in the image above, solved the issue.

Psa: mt32-pi does not come with mt32 roms, as they are copyrighted. Thees are needed for munt/mt32 mode. Google and you find them.
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