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May 3rd, 2007, 09:42 PM | #1 |
Regular Crew
Join Date: Jan 2004
Location: ACT Australia
Posts: 148
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Mic attenuation?
Is there a MIC attenuator on the A1? With my ME66/K6 I sometimes need to use MIC ATT and manually lower the audio to maintain proper levels...ME66 supplies a 'hot' signal and cam clips excessively otherwise.
If the A1 doesn't have MIC ATT, do the manual audio levels give me more lattitude than a Sony PD-170P (w/o using MIC ATT)? |
May 3rd, 2007, 11:05 PM | #2 |
Major Player
Join Date: Aug 2006
Location: Glasgow/Scotland
Posts: 626
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Yes...there is a Mic Att switch located under the flip out screen.
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May 3rd, 2007, 11:10 PM | #3 |
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Join Date: Dec 2006
Location: Los Angeles, CA
Posts: 959
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May 4th, 2007, 04:56 AM | #4 |
Major Player
Join Date: Jan 2007
Location: Tampa,Florida
Posts: 236
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I use the me66/k6 on my A1 and found I do not need the Att sw on, just need to use the manual gain controls. If you are in VERY loud condidtions you may need it. DO NOT USE THE AGC. It will ramp up terribly when the is no dialog or other sounds! lots of noise.
I have to use ATT constantly on my DVX100 |
May 4th, 2007, 08:19 AM | #5 |
Wrangler
Join Date: Sep 2001
Location: Northern VA
Posts: 4,487
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Use MIC ATT with the ME66 and the noise will not ramp up nearly as much with AGC. The ME66 is a hot mic, and this can cause soem intersting issues with AGC.
With a hot mic, during average level program material the AGC is reducing gain significantly, but during period of quiet in the program material the AGC brings up the gain and you can hear the mic's self noise. Depending on the particulars, this could result in a noise floor that is perhaps 39 or so dB below progam material. With MIC ATT on, the self noise input is efectively cut by 20 dB, and program material will cause smaller overall excursions of the AGC resulting in improved signal to noise ratio. Gain controls are after the input preamp. A hot mic with loud sound can drive the preamp into clipping even if gain controls reduce redcord level. Using MIC ATT reduces the chance of preamp clipping with loud sounds and hot mics. THe user has to judge results with thir setup and program material to detemine which works best for them.
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