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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: 3rd harmonic distortion posted by Jon Risch on January 1, 2005 at 19:29:17:
Hi JR. I think that I will pull out your multitone CD and start measuring again.
Years ago, when you first sent me the CD, it was fine, BUT I had trouble finding a CD player that was linear enough to test my own circuitry without a lot of mental subtraction. Then, I was using the HP3580 or the MAC FFT program and they were both single channel.
However, now that I have a dual channel FFT system with the HP3563, it might be practical to cancel out the source by digital subtraction, and just look at the residual !
For the record, the reason that I have used a single sine wave in my usual analysis, is because it is so easy to null. However, you know as well as I do, that a sine wave is not the most sensitive waveform that you can use to find distortion. Keep up the good work!
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- Re: 3rd harmonic distortion - john curl 16:01:10 01/03/05 (0)
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