DCS Paganini Upsampler, User Manual, Page: 12 / 29

dCS Paganini Upsampler
User Manual Software Issue 1.1x
March 2011
Filename: Paganini Upsampler Manual v1_1x.docx
Page 12
English version
STEP 4 - Setting the Sync Source
The system has been set up to lock to the clock generated by the source, (unless you are using the
USB
input) and the
Sync
icon should be displayed. To check this, press the
Menu
button, press the
→
button once, then the
Menu
button again to display the Upsampler Settings menu. If the Upsampler
was reset at the start of this procedure, you should see the Sync Source – Audio icon:
This is the simplest arrangement, but it does not give the best sonic performance due to clock jitter.
You can improve the performance by adding a Master Clock to your system.
Using the USB input in Master Mode
Jitter from computer sources is typically very severe and can degrade the audio quality. To avoid this,
the Upsampler’s USB interface runs in Asynchonous mode. The Upsampler does not lock to the
source clock, but uses the Upsampler’s internal clock instead - this is called Master Mode - and
adjusts the source to the same clock frequency. To use the Master Mode:
•
Connect the Upsampler’s
USB
interface to a suitable source.
•
Use the Upsampler’s
INPUT
button to select the
USB
interface.
•
Press the
Menu
button, press the
→
button once, press the
Menu
button to display the Upsampler
Settings menu, press the
→
button to select the Sync Source page and then press the
Menu
button as necessary to change the setting to Master :
•
Set the Upsampler’s
OUTPUT
rate as you wish, connect the appropriate outputs to the DAC and
use the DAC’s
INPUT
button to select that input.
The Upsampler will draw data from the source, but it is not locked to the source, so the
Sync
icon is
NOT displayed. You can improve the performance by adding a Master Clock to your system.
Using a Master Clock
If you have a
Paganini Clock
(or other dedicated Clock) in your system, lock the source, the Upsampler
and the DAC to the Clock for the best performance. To do this:
•
Connect the Clock’s
Word Clock Out
puts to the
Word Clock In
puts on the source, Upsampler
and DAC.
•
Set the Clock
Frequency
to suit the source and DAC. For a CD Transport as source with the
Upsampler set to output
24/176.4
or
DSD
, the correct frequency is
44.1kHz
. For a 24/48 source
with the Upsampler set to
24/192
, the correct frequency is
48kHz
.
•
Select the required input on the Upsampler and DAC. This is important because these units store a
different Sync Source setting for each input.
•
To set the Upsampler to lock to the Clock, press the
Menu
button, press the
→
button once, press
the
Menu
button to display the Upsampler Settings menu, press the
→
button to select the Sync
Source page and then press the
Menu
button as necessary to change the setting to WClk :
•
The
Paganini Upsampler
will display the
Sync
icon, provided the clock is recognised. If there is no
signal at the
Word Clock In
connector or it is not recognisable, the Upsampler will sync to audio
and display this icon to warn you:
•
The
Paganini Transport
will automatically lock to the Clock and display
Sync
.
•
Set the
Paganini DAC
to sync to Word Clock by pressing the
SYNC
button as necessary.