Re: Voltage follower for high-pass
Posted: Mon Mar 16, 2015 10:19 am
Hi Carlmart: The simplest way to get some low freq. roll off would be to have 2 values of coupling caps at the output of the 1510 mike pre; one to give flat response down to approx. 30 hz & another that rolls off the low end at 6db per octave starting the roll off at 150hz. This is the method used by Magnasync in their location film recorders & numerous mixers. I have at least 5 mixer schematics that use this approach. It is easy, effective & inexpensive to implement. I used to do on location mater taping in the 60's & now shoot & edit video professionally, trust me this is all you need to keep audio for video out of the mud.