HDMI->DVI and sound from Mini-plug output

Hello community

We currently have a set-up of several Raspberry Pis and Info-Beamers with monitors that have only DVI input. We are connecting to the monitors with HDMI->DVI cables.

Question: how to get ouput sound from this setup? We tried plugging a normal speaker to mini-plug port of Raspberry Pi, but that does not produce sound at all.

Any suggestions on how to get sound? We just need one Pi to produce sound.

I’d advise that you get HDMI audio extractors.

Something like this: https://www.amazon.co.uk/Neoteck-Extractor-Optical-Converter-Splitter-DAC-1080P/dp/B01GH4MEYC/ref=sr_1_1_sspa?crid=1VZUICN36X1JR&keywords=hdmi+audio+extractor&qid=1563281638&s=gateway&smid=AZV1Z18ZCU603&sprefix=hdmi+audio+%2Caps%2C141&sr=8-1-spons&psc=1

Assuming you have another input for your audio, such as an amplifier etc, you can change the audio output settings in the device configuration, although I have never got good sound from the 3.5mm audio output.