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RE: To Dither or Not to Dither? J. River/PonoMusic World

It should be possible to measure the distortion products added to low level test tones on the analog outputs of any of the SABRE chip based DACs. Most of these are pretty linear at low levels, so the distortion ought to show up out of the noise, especially when spectrum are computed over long averaging periods, which will reduce the residual noise of the DAC chip and output amplifiers.

You may need a low noise preamp to boost the output level of the DAC so that the noise and distortion products are well within the resolution of your ADC.



Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar


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