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In Reply to: Re: Old Cable Thread - Figures posted by Thorsten on March 22, 1999 at 10:06:48:
The issue of measurements is indeed a troubling one. At least in the USA, the measurements that amplifier manufacturers (for instance) are required to use are "mostly useless" in just about the same way that the entry in the HHGTTG for "Earth" is "mostly harmless".THD and SNR do not convey the most important parts of the error signal, in fact, they don't allow any real understanding of the error spectrum at all.
Were manufacturers to show distortion spectra for standard signals, including (but please, not limited to) sine waves, pink noise, and some complex sums of sines, we would see some very enlightening information in the plots of the signal vs. the error signal.
Unfortunately, in the AUDIO field one rarely sees such measurements. Any number of people know this, but unfortunately the political climate is not one that seems to encourage any substantial progress.
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- Re: Measurements - jj 12:41:50 03/22/99 (0)
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