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Right here in the preferences: 
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O som dos micros não saem no both. como posso resolver?
Right here in the preferences: 
Post ist für Kommentare geschlossen.
Do you mean the sound isn't coming out of the booth?
If tou are using BOTH as sound output, the sound of the micro does not came out.
Sorry, what is micro here?
I mean microphone.
MIcro to Both, how I can turn on?