Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Sound › Boost audio levels from mixer
- November 16, 2019 at 3:40 PM #72030152
I do live webcasting using prosumer Panasonic camcorders (UX90) and get an audio feed from the venue’s audio mixer directly into my cam via an XLR connection.
However, the audio levels coming out of the mixers are invariably so low – even when the mixer output level is turned up to almost full and the input line levels on my camera are also turned up to almost full, that I do not get good control of the audio when speakers speak in very low voices (which is all too often the case).
Question: Is there any way to boost audio levels coming out of the mixer, before it gets into my cam? Isn’t a mixer supposed to act like an amplifier?
- November 18, 2019 at 12:55 PM #72030287bobspezParticipant
Get a mic pre amp between the mic and the mixer. I use the TC Helicon Voice Tone. I picked up a used one on ebay for about $100. Better yet record your audio separately with a recorder and sync the camera audio to the recorded audio then mute the camera audio in the editor. Camera audio cannot compete with a separate recorder. I use the Zoom R16 which has 8 inputs.
- November 18, 2019 at 3:14 PM #72030297
Thanks for the suggestions.
Trouble is there are multiple wireless mics in the venue all going to the mixer so that would need multiple preamps (?)
Also I am trying to avoid any post editing which is not only time consuming and the client will.not pay extra
The audio quality is not critical in these conferences and what I get now is more than adequate. It’s just that I need more volume headroom to play with for speakers who speak way too softly.
- November 18, 2019 at 3:35 PM #72030300
Is there something that can go between the mixer and the camera?
- November 18, 2019 at 4:57 PM #72030317bobspezParticipant
If you were to boost all the audio levels at once, wouldn’t that be as much of a problem?
The loud talkers would be too loud. If you want to control the volume for each mic in real time, maybe you need another mixer. I use the Zoom R16, which is a digital recorder and mixer. It has 8 inputs and each input has it’s own gain and volume fader. It can output stereo in real time with two mono 1/4″ jacks. You can get an adapter at the other end to convert the stereo into mono and then to xlr to plug into your camera. It also has a master output volume fader. I can talk barely above a whisper a foot away from the mic and it is perfectly understandable.
- This reply was modified 8 months, 2 weeks ago by bobspez.
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