In article ,
Arny Krueger wrote:
A good inexpensive hardware tool for managing dynamic range that I've
had some experience is the Behringer 1424. I'm using it to front-end a
cassette machine that is being used for recording church services. It
has four major functions - a compressor with peak limiter, a noise gate,
a sonic enhancer, and a stereo enhancer.

I'm not convinced it will do the required job for the OP, Arny. I'd hire
one before buying.

Anyone who finally comes up with a mechanical method of subjective level
matching will make a fortune - and put me out of a job.

--
*Rehab is for quitters

Dave Plowman London SW
To e-mail, change noise into sound.