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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: RE: Class D ultrasonic switching noise.... posted by Todd Krieger on October 9, 2015 at 17:33:57:
If there is RF noise that does not correspond to the audio signal that was originally recorded, it is because the DAC is poorly designed. It should generate no RF noise of its own. To the extent that this is physically unavoidable by the digital process, then there should be analog filtering between the converter circuits and the analog outputs of the DAC.
However, you are correct. Most DACs do put out a lot of RF crap. Miksa on Computer Audiophile has some RF spectrum plots that demonstrate this. This is the result of poor (or ignorant) engineering.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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Follow Ups
- RE: Class D ultrasonic switching noise.... - Tony Lauck 10/9/1519:23:29 10/9/15 (1)
- RE: Class D ultrasonic switching noise.... - Todd Krieger 23:15:00 10/9/15 (0)
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