Re: ATEM switcher 1 M/E, Hyperdeck shuttel and Hyperdeck Studio questions

You seem to have two different (and likely independent) questions here.

Exactly what you you mean by "the audio doesn't work"?
Do you mean that the HDMI connection from the computer to the ATEM does not contain the computer audio?

How do you have the computer connected to the audio mixer?
Do you mean that the computer doesn't output audio when you are using the HDMI output? If so, that is really a computer question, and not a BMD or ATEM question.

How are you connecting your ATEM switcher to the HyperDeck?
Are you feeding the output of your audio mixer into the ATEM switcher?

Not enough information about how you have things interconnected, what computer/OS you are running, etc.