I’m playing the video but is has no audio.
I’ve tried playing the video on different computers and it still has no audio.
There is a hissing or noise in the video.
Solution #1: Replace the microphone battery.
Often, the hissing that you are hearing in the recording is a result of a failing battery in the studio’s microphone. Remove the microphone from its shock mount after first removing the wind screen. Unscrew the two halves of the microphone body and replace with a fresh AA battery.
Solution #2: Minimize electromagnetic interference.
If the noise sounds like 60 Hz hum, try turning the overhead lights off. If that works the cables will need to be moved away from the lights or any elctrical conduit that may be running through the ceiling. If the cables must run in proximity to electrical lines, they should cross perpendicular to the lines rather than parallel to reduce any noise induced by magnetic fields.
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Solution #3: Set volume levels correctly.
Is the audio distorted or clipping? If so, adjust input levels on the mixer or adjust the mixer output. You want to make sure that the input is not set so low that the output has to be set very high, as this will increase amplifier noise or hiss.
Also make sure that camera input is set to match the output of the mixer. This is typically listed as line input settings vs. mic input. Consult your equipment manuals for appropriate settings.
Ensure that audio levels on the camera are set to manual and not auto or AGC.
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