MiSTer FPGA Forum

...just me.

Hi all,

I am hoping for a little help here please as I am completely stuck after an afternoon of searching and no luck.

I got myself an MT32pi, second hand.

It seems to be configured ok, but I am having all kinds of trouble trying to get Midi to work.

I am using the excellent 300 image from Flynn with the latest update as of today from GitHub ( in terms of updated today ).

The MT32pi is detected and can be seen as I've set the audio to be showing on the virtual LCD.
My setup is running from the USER I/O port to the MT32pi and the LCD on the screen shows audio - yet I hear nothing.
When running Doom, I hear the sound effects of picking up ammo etc but it seems the audio from the MT32pi is not being passed back to teh MiSTer.

Can anyone advice please ?

Thank you.

Most common issue is the USB cable, the digital audio feed is very very length sensitive. You need a very short USB3 cable, everything over 12 inch screwup the I2S audio connection. This is the one I use: https://www.amazon.ca/-/fr/gp/product/B07QMPJ9V1/

BigMac2 wrote: ↑Sun Apr 04, 2021 4:58 pm Most common issue is the USB cable, the audio feed is very very length sensitive. You need a very short USB3 cable, everything over 12 inch screwup the I2S audio connection. This is the one I use: https://www.amazon.ca/-/fr/gp/product/B07QMPJ9V1/

Thank you - it did come with a USB3 cable, but I will replace that one just to be sure.

Reg wrote: ↑Sun Apr 04, 2021 5:00 pm

BigMac2 wrote: ↑Sun Apr 04, 2021 4:58 pm Most common issue is the USB cable, the audio feed is very very length sensitive. You need a very short USB3 cable, everything over 12 inch screwup the I2S audio connection. This is the one I use: https://www.amazon.ca/-/fr/gp/product/B07QMPJ9V1/

Thank you - it did come with a USB3 cable, but I will replace that one just to be sure.

Strange, make sure you have this following line in your mt32-pi.cfg:

Perfect - that fixed it - the change to the config file.

Thank you VERY MUCH.