View Single Post
  #122 (permalink)  
Old December 30th 03, 12:36 AM posted to uk.rec.audio
Kalman Rubinson
external usenet poster
 
Posts: 214
Default Added a DAC to a cheap CD player - and got a result

On Tue, 30 Dec 2003 00:05:35 +0000, "Nick J."
wrote:

Keith G wrote:

"Ian Molton" wrote in message
...

theres a switch labelled 'phase'. Wonder what that does?


Inverts the phase which can sometimes improve the sound. (Buggered if I know
how or why though......)


I understand that S/P-DIF spec allows for data to be sent "normal" or
"inverted". I have no idea why, but some of my equipment can send the
S/P-DIF info either inverted or normal. The other gear seems to
auto-switch in order to deal with it.


There is no way to change the phase of the S/PDIF stream itself since
it is biphase encoded. One can invert the audio phase of the
datastream extracted from it with a simple inversion.

Kal