Richard Evans - 2015-08-03

PS. Sorry I made a mistake in the title of this post.
The extra utility is to correct equalisation.
I can't find any way to correct this title.

I found I had made a mistake in calibrating DolbyB.
Hence I have recalibrated, and the results sound better.
I also realised that by changing the parameters on the FET, I could improve the treble a little. So I have done that.

I also worte a utility to correct equalisation, if a tape was recorded at EQ 70u but played back using EQ 120u

 

Last edit: Richard Evans 2015-08-04