MacOS Catalina running on Virtualbox 6.1, no sound

MacOS Catalina running on Virtualbox 6.1, everything works except the audio.

Anyidea how to fix this issue?

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https://preview.redd.it/k6j7p5utmpz51.png?width=679&format=png&auto=webp&s=2f477b84edea3f0984f13cea3523d8060a638fe6

https://preview.redd.it/v7syl2u0npz51.png?width=640&format=png&auto=webp&s=7bf9fcf3ba73a2ed5ea4b994079f7a8c90f6fefa