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Sony VX2100 / PD170 / PDX10 Companion
Topics also include Sony's TRV950, VX2000, PD150 & DSR250 family.

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Old September 28th, 2004, 06:22 AM   #16
Inner Circle
 
Join Date: Feb 2004
Location: Brooklyn, NY, USA
Posts: 3,841
Bob,

The PD-170 "AGC" is actually NOT an AGC circut. It's simply a hard limiter so there is no pumping. It doesn't sound good to hit the "limit" constantly though but if you're using a wireless mic, you simply lower the level on the receiver.

Unfortunately NOTHING from Sony, that I've found, explains what the AGC actually is but from other geeks and from my own experience, it's not what most would call an "AGC" such as those found in consumer cameras.

Most experienced 150/170 users who have an audio background say leave AGC on unless you MUST control the level from the camera . . . and I've found most times you can leave AGC on even using a shotgun or wired mic since it seems the preamp can handle a fairly hot signal.

I think Sony misrepresents what the circut does by calling it an "AGC." It's simply a limiter.
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