The SD approach, same as the Shure approach and others is to use transformers and LDRs. I can't afford using transformers.ricardo wrote:You've posted your questions in several fora. The easiest is the Sound Devices approach.
This the path I will follow, and I'm trying to find out with THAT about using just the limiter parts and not the compander. The gain will be handled by a three position switch and a log pot just after the input 1501 and before the limiter stage.Next is to have limited gain mike amp and a limiter as the second stage. I posted suggestions on how to make this work (the stuff about gain structure) This still applies.
I did look for several rail to rail OPAs that could handle a 12v single supply and I didn't find any that did. I looked into AD, TI and LT.This is usable with correct choice of OPA. But you need to do some work eg study datasheets of possible OPAs. Have you looked at my suggested OPA and tried to understand what makes it suitable?
Of course I will get back with the final solution.When you come up with your final working circuit, please post it here too. I think you owe it to those who have tried to help you.
Have you told THAT EXACTLY what you want?
Since the very beginning.
Have you studied the 23 x THAT Design Notes?
You mean those using compressors? Not all, just those that included limiters.
My EE partner is now getting into the game and will probably be around here this week too.