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In Reply to: RE: Multiple kinds of distortion... posted by SteveBrown on January 16, 2017 at 16:55:35
"seems like you should put a test signal in both the amp and analyzer"
No, you just match the frequency with the distortion analyzer. You did it right.
You have to deduct the distortion of your generator to get an accurate number. It's complicated but the manual should walk you through it.
IMO 2.3% is high considering that it's a PP circuit and all the even ordered distortions should be canceling.
IMO 2.3%, made up of 3rd and 5th and (God forbid) 7th, will sound much worse than 2.3% of 2nd.
BTW My objection to kitch29's post was his redefinition of the term "distortion". To me he said that "as long as it sounds good to the listener then it can't be described as distorted".
That's just not true. What if the listener has no idea what the recording should sound like? Personal preference for a particular type of sound is not the same as low distortion.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Follow Ups:
Thanks. My signal generator is an old and cheap one, and I don't have a manual, but I'll take a look on line and see what I come up with.
The manual for the distortion analyzer should describe the mathematical process for accounting for the generator distortion.
Run the generator straight into the distortion analyzer to get your base line distortion and then work from there.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
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