dCS
Vivaldi Upsampler User Manual
Software Issue 1.2x
December 2015
Vivaldi Upsampler Manual v1_2x
Page 16
English version
A word about Music Playing Software
There are countless programs that can play music on Windows
and Apple Mac OSX PCs.
Unfortunately, not all of them present the data completely unprocessed to the USB ports. For
example, Windows Media Player re-samples all data to 24 bits, albeit at the original sample rate, while
iTunes rate converts data as necessary to the output sample rate set in the OSX Audio MIDI Set-up
panel.
With such a proliferation of playing software, and with updates being issued daily, it is impossible for
dCS
to be fully up-to-date with the behaviour and performance of all programs. If you have questions
or problems, we would urge you to take them up with your software vendor. What we will say is that
different programs operate very differently and it is well worth finding out exactly how your particular
program processes the audio.
One particular problem concerns iTunes when running on Windows systems. The default output word
length is 16 bits, this must be changed to 24 bits for correct operation. To do this, click on
Start
>
Control Panel
>
Quicktime
. Click on the
Audio
tab of the Quicktime panel and select
24 bit
in the
Size
field of the
Sound Out
section.
Selecting the Vivaldi Upsampler as your Audio Output device
Whichever program you are using to play your music, your computer may not automatically select
your Vivaldi Upsampler as the preferred playback device. Once you have connected the Upsampler
and switched it on, you can correct this as follows:
Mac OSX
TM
-
Open
Finder
, click on the
Go
tab and select
Utilities
>
Audio MIDI Setup.
Select
dCS Vivaldi USB …
from the list on the left-hand side, right-click on it, and choose “
Use this device
for sound output
” from the drop down list. Set the
Format
to
384000.0Hz
and
2ch-24bit Integer
.
Close
Audio MIDI Setup
.
Windows 8.1
TM
/ Windows 7
TM
/ Windows Vista
TM
-
Go to
Start
>
Control Panel
>
Hardware and
Sound
>
Sound.
In the
Playback
panel, right-click
dCS Vivaldi Upsampler Audio
and choose
Set
as Default Communication Device
. Click the
Enhancements
tab and check
Disable all
enhancements
. Select the
Advanced
tab, choose
24 bit, 192000 Hz (Studio Quality)
from the drop-
down box. Check the 2 boxes under
Exclusive Mode
, click
OK
and
OK
again to close the
Sound
panel.
Windows XP
TM
-
Go to
Start
>
Control Panel
>
Sounds and Audio devices
, click on the
Audio
tab.
In the
Sound Playback
-
Default Device
panel, select
dCS Vivaldi …
or
dCS High Speed Audio
Device
from the drop down list. Click
Advanced
, click the
Performance
tab, set
Hardware
Acceleration
to
Full
. Click
OK
and
OK
again to close the
Sound
panel.
This is basic set up information. Please refer to the “
dCS
Guide to Computer Audio
” for
more specific information.
Open your streaming program, select the
Vivaldi Upsampler
in the
Options
or
Preferences
panel
and play some music.
Go to STEP 5.
