Purité Audio
Trade: Purite Audio
You can’t hear anything in the digital domain.
Keith
Keith
Thanks for the detailed maths on db ratio. I was aking what is happening in the digital to digital domain not in the analog result.
If you want to use a digital argument (which really doesn't apply in that test but we'll play along for shits and giggles)
USB 1.0 uses a signal differential of roughly 3v to represent a 1/0 therefore using a 3v reference -140dB would equal.....
0.000000000000003 Volts
or
0.3 pV
Even at the highest bandwidth and specific signalling USB 2.0 looks for a differential voltage of 400mV that is 0.4 Volts
Do you think that either 0.000000003 or 0.0000000004 mV could cause any spurious effects?
In USB the digital signal is voltage, what do you think ditigal is then?
The IC will convert the stream of bits into differential signal of few volts swing, will do some line encoding to ensure enough toggling of 0/1 is available, and some other functions.
In USB the digital signal is voltage, what do you think ditigal is then?
no its not....