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Junior Varsity
Lav mics?
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<blockquote data-quote="Art Welter" data-source="post: 88383" data-attributes="member: 52"><p>Re: Lav mics?</p><p></p><p></p><p>If you don't hear the mic self noise (mostly "hiss") over room noise, sensitivity is not a problem.</p><p>If actual mic self noise is not a problem you don't need a more sensitive mic, you simply need to turn up the gain on the console.</p><p></p><p>An omni mic has the advantage of being largely unaffected by mounting position, and generally smoother frequency response. </p><p>A cardioid can give better gain before feedback if mounted correctly, but can be very bad if the capsule gets turned sideways or pointed down, or if folds of clothing "cup" the mic.</p><p></p><p>"According to line6 the dynamic range of the system allows for instrument levels up to line levels (6 Vpp?) so no gain adjustment needs to be done on the pack side and the mixer operates it's headamp as normal."</p><p></p><p>Problem with this approach is poor signal to noise for low level inputs, such as a chest worn lav, where the gain should be at the source, not after the RF section.</p><p>It simplifies the design of the transmitter, and is a good idea for guitars with active pre amps and such, but not for lavs.</p></blockquote><p></p>
[QUOTE="Art Welter, post: 88383, member: 52"] Re: Lav mics? If you don't hear the mic self noise (mostly "hiss") over room noise, sensitivity is not a problem. If actual mic self noise is not a problem you don't need a more sensitive mic, you simply need to turn up the gain on the console. An omni mic has the advantage of being largely unaffected by mounting position, and generally smoother frequency response. A cardioid can give better gain before feedback if mounted correctly, but can be very bad if the capsule gets turned sideways or pointed down, or if folds of clothing "cup" the mic. "According to line6 the dynamic range of the system allows for instrument levels up to line levels (6 Vpp?) so no gain adjustment needs to be done on the pack side and the mixer operates it's headamp as normal." Problem with this approach is poor signal to noise for low level inputs, such as a chest worn lav, where the gain should be at the source, not after the RF section. It simplifies the design of the transmitter, and is a good idea for guitars with active pre amps and such, but not for lavs. [/QUOTE]
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