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[Erick Neilsen]

Hi,

I'm new to this site and wanted to ask a question regarding an audio job that went terribly wrong. In a medium sized conference / meeting room at a local hotel, I was tasked to lav mic 5 panelists and have a handheld stick mic for q & a afterwards. The speaker was a built in podium speaker. I ran the lav mics to my mixer and out of the mixer to the podium speaker. I set my gains correctly, but as soon as I gave "any" volume from either the podium or the mixer I would get feedback.

The podium was at least 10 feet from the nearest panelist and pointing away from them.

The q & a stick mic, which had a cube transmitter on it with the receiver plugged into the mixer, also had terrible feedback. The only thing that worked was a hard wired stick mic. Please help me understand what happened so I can avoid it again in the future. My best guess is mic selection.

Thanks

[Dave Garoutte]

Please change you display name to your actual name, per the forum rules.
No one will reply until then.
We're very strict about this.

[John Roberts {JR}]

Feedback is caused by the mic picking up signal from the speaker, amplifying it, and sending it back to the speaker where the loop repeats.

JR

[Patrick Tracy]

I ran the lav mics to my mixer and out of the mixer to the podium speaker. I set my gains correctly, but as soon as I gave "any" volume from either the podium or the mixer I would get feedback.

Was the input on the podium meant for mic level or line level? Perhaps it was just too sensitive.

Or the people spoke so softly you had to give them too much gain.

Or the lavs were of low quality with response spikes that made them more prone to feedback.

Can you be more specific that "I set my gains correctly?"

[Tim McCulloch]

Hi,

I'm new to this site and wanted to ask a question regarding an audio job that went terribly wrong. In a medium sized conference / meeting room at a local hotel, I was tasked to lav mic 5 panelists and have a handheld stick mic for q & a afterwards. The speaker was a built in podium speaker. I ran the lav mics to my mixer and out of the mixer to the podium speaker. I set my gains correctly, but as soon as I gave "any" volume from either the podium or the mixer I would get feedback.

The podium was at least 10 feet from the nearest panelist and pointing away from them.

The q & a stick mic, which had a cube transmitter on it with the receiver plugged into the mixer, also had terrible feedback. The only thing that worked was a hard wired stick mic. Please help me understand what happened so I can avoid it again in the future. My best guess is mic selection.

Thanks

My experience with "powered podiums" has been many presenters can talk louder than the speaker system will get without feedback... with a regular SM58 and not a lav mic.

What's your experience level working with lavaliere mics?

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