So the makers of bluetooth decoders include their own onboard DAC, and this DAC is sub-par compared to other dedicated DAC chips. This is only partly correct, because datarate and compression-type are only one aspect of bluetooth's problems - another major flaw is that the digital audio output from the bluetooth decoder has very high jitter, so high that most D/A chips cannot reliably lock to it. Regarding bluetooth, there were some earlier implications that using one of the higher standard bluetooth protocols will overcome bluetooth's limitations. However a well implemented s/pdif interface can still outperform a poorly implemented USB interface! Regarding jitter, yes, s/pdif (and optical s/pdif in particular) is inherently more prone to jitter than USB decoders. Their ultimate audio performance is the sum of both functions. I) a digital interface decoder (USB, coaxial s/pdif, optical s/pdif, HDMI) I'm sure that these comments were offered in good faith, so no one should feel miffed about my comment.Īt the outset we should understand that most standalone DACs are effectively 2 devices IMO many of the comments here are partly correct, but otherwise quite wrong. I'm a regular on the diyaudio forum, and just an occasional visitor here.
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