I need a schematic of an audio compressor/limiter that uses a FET optocoupler like H11F1M used to control an automatic voltage amplifier or automaitc gain control. This will be used as a mic preamplifier.
Regards,
Fernando
Regards,
Fernando
also look up prodigy-pro forum:
http://www.prodigy-pro.com/forum/index.php?sid=db49bd060d6b571e1c5112b01722a8d6
http://www.prodigy-pro.com/forum/index.php?sid=db49bd060d6b571e1c5112b01722a8d6
Limiters
I found I could not get acceptable sound quality from FET limiters and switched to opto resistive ones several years ago. Using Vactec devices. THD in hard limiting dropped from the 0.2% range down to the .01% range. And even to get the 0.2% range with FETs took tricks that are considered proprietary.
I found I could not get acceptable sound quality from FET limiters and switched to opto resistive ones several years ago. Using Vactec devices. THD in hard limiting dropped from the 0.2% range down to the .01% range. And even to get the 0.2% range with FETs took tricks that are considered proprietary.
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