ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum. New: view Recent Searches.
New: visit Schematic Hell!
The sunn still shines online!

 
Listen to great tunes streaming live right now!

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  
previous: Ed Rembold Dear Jon, Thanks for artic... -- 7/13/1999 3:00 AM View Thread

Re: Distortion Article

7/14/1999 9:15 PM
Jon Blackstone
Re: Distortion Article
Actually, I've found that the sine wave response waveform doesn't tell me very much about a pedal or amp. That's partly why I put in that paragraph about there being many different waveforms with the same harmonic content (due to the ear's insensitivity to phase of harmonics). Spectrum plots are better, but they can also be hard to find meaning in. While doing spectrum analysis on a bunch of pedals recently, I observed that the best sounding distortions go back and forth between emphasizing odd and even harmonics over the range of amplitudes that corresponds to a guitar signal. It's almost more interesting to listen to this than to look at it on a spectrum analyzer. You feed a sine wave into the distortion device and, as you vary the level, you hear it morph from a clarinet-like sound (odd harmonics) to an insect-like sound (even harmonics).  
 
 
 
No transitions = static, unsatisfying sound/feel? Any takers on this theory?  
 
 
 
Jon Blackstone

 
Replies:
Jim S. I wonder if what you've experienced... -- 7/14/1999 9:27 PM
R.G. This notion has been around for sev... -- 7/14/1999 10:01 PM
Ed Rembold Hey, wait a minute- even harmonics,... -- 7/15/1999 0:24 AM