Thanks for reaching out, welcome to the community.
I am very sorry to hear that you are unable to get any audio from your Video Wave III. We'd love to assist you with this.
Can you please inform us of what the console and monitor LED states?
Do let us know!
Tegan M - Community Support
Thanks for updating us.
Can I please confirm what @Tegan_M has asked so that we can assist further?
I look forward to hearing back from you.