you can - so... a few questions and possibly some assumptions you can correct.
1) The camcorder was placed at the back of the theater. This means the built-in mics re back there, too. This was needed because if the camcorder were closer, that would block the view of the audience... so...
2) Since the camcorder has a mic jack - which is how you connected the mixer to the camcorder - that got some mics on stage closer to the audio but something else happened that caused and "awful result".
3) Can you describe what "awful result" sounds like?
4) Is connecting the mixer to the camcorder possible to record "better" audio? Maybe. We need to know what mixer (manufacturer and model) and which connections (XLR, 1/4", something else?) were used. If possible start at the mics and work back to their connection to the board, then from the board to the camcorder.
Was the connection from the mixing board using the Mains out, monitor, headphone, line-out or some other "discrete" monitor channel?
5) Which mics (manufacturer and model if possible) were used, how many, where are the mics placed relative to the stage or the actors, how many actors there are, is anyone actively working the board during the show (or are all the audio levels "set/forget")?
6) Had you tried this before - perhaps during rehearsal? Outside of this activity, what sort of use does the camcorder get? How successful are those video capture projects?
7) What is your expectation on the quality of the "project"?
There will be more - depending on your responses.
I'm a theatre teacher, and I just recorded a show at my school. I listened to the video and was saddened by the overwhelming volume of the ambient noise. I want to know if It's possible to record onto my video camera from my mixer. I tried this once with a different mixer, and had an awful result, and have not had the opportunity to figure it out.
Any suggestions?

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