Added a DAC to a cheap CD player - and got a result
 

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.

--

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

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

Added a DAC to a cheap CD player - and got a result
 

On Mon, 29 Dec 2003 20:36:14 -0500
Kalman Rubinson wrote:

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.

To go back to the original topic a bit...

I now have the DAC feeding a *slightly* better amp than my old Rotel. I say slightly as the only reason its better is that the Rotel has buggered caps and something else wrong with it.

Its now feeding an AIWA A25 (best part of 30 years old at a guess) and it actually sounds pretty good (although the A25 is *clearly* having a hard time driving my Radfords...

--
Spyros lair: http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with ketchup.

Added a DAC to a cheap CD player - and got a result
 

On Mon, 29 Dec 2003 20:36:14 -0500
Kalman Rubinson wrote:

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.

To go back to the original topic a bit...

I now have the DAC feeding a *slightly* better amp than my old Rotel. I say slightly as the only reason its better is that the Rotel has buggered caps and something else wrong with it.

Its now feeding an AIWA A25 (best part of 30 years old at a guess) and it actually sounds pretty good (although the A25 is *clearly* having a hard time driving my Radfords...

--
Spyros lair: http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with ketchup.

Added a DAC to a cheap CD player - and got a result
 

Added a DAC to a cheap CD player - and got a result
 

Added a DAC to a cheap CD player - and got a result
 

Callas wrote:
wrote:
Following the recent thread about adding a DAC to my Schneider DVD
player, I went ahead and purchased a used Meridian 203 when it was
offered by a subscriber here. It arrived this morning and it's been
playing all day...

Sorry to be negative, but I think only blind tests are valid.

With something as subjective as the perception of sound, non-blind
tests are inherently unreliable.

Bull****.


--
Wally
www.art-gallery.myby.co.uk
On webcam: Black Cat In Coal Cellar

Added a DAC to a cheap CD player - and got a result
 

Callas wrote:
wrote:
Following the recent thread about adding a DAC to my Schneider DVD
player, I went ahead and purchased a used Meridian 203 when it was
offered by a subscriber here. It arrived this morning and it's been
playing all day...

Sorry to be negative, but I think only blind tests are valid.

With something as subjective as the perception of sound, non-blind
tests are inherently unreliable.

Bull****.


--
Wally
www.art-gallery.myby.co.uk
On webcam: Black Cat In Coal Cellar

Added a DAC to a cheap CD player - and got a result
 

On Sun, 4 Jan 2004 14:56:56 -0000, "Wally"
wrote:

Callas wrote:
wrote:
Following the recent thread about adding a DAC to my Schneider DVD
player, I went ahead and purchased a used Meridian 203 when it was
offered by a subscriber here. It arrived this morning and it's been
playing all day...

Sorry to be negative, but I think only blind tests are valid.

With something as subjective as the perception of sound, non-blind
tests are inherently unreliable.

Bull****.

No, it's true. Not that I'm saying the 203 isn't a good DAC, you
understand! :-)
--

Stewart Pinkerton | Music is Art - Audio is Engineering