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RE: Digital Volume Control

Posted by Tony Lauck (A) on August 4, 2011 at 13:44:07

In Reply to: Digital Volume Control posted by Roseval on August 4, 2011 at 13:11:38:

The numbers don't seem unreasonable. If one uses a DAC with only 104 dB DB S/N then one shouldn't be using much digital volume reduction, if any. If one has a better DAC with more S/N ratio itself one might be able to get away with 10-15 dB of digital volume reduction. Of course it is perfectly fine to use more digital volume reduction if the volume has been turned down for background listening.

If one chooses to use digital volume reduction instead of a preamp one must be careful that there isn't excess analog gain. Some means must be taken to ensure that a full scale digital signal does not damage one's equipment otherwise the system is going to be unsafe and/or unreliable as well as poor sounding.

Tony Lauck

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

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