NuForce U192S User manual

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NuForce192kHz/24bitUSBDriverSetupGuide
InstallDriver&Software:
After downloading thedriver, run the Installation program. After the installation,
an icon linking tothe NuForce Stereo Audio Control Panel program willappear
on your desktop. For now move on to the Connect Hardware step, as detailed
information regarding software adjustment will follow.
ConnectHardware:
Once the software has been installed,connect a digital coaxial or optical cable
from the output of the U192S to the input of your chosen DAC. Plug the provided
USB cable between the computer's USB port and the U192S. After the cable is
connected, a window will pop up at the lower-right side of the display that reads:
NuForce Async USB Audio 192K HS installed
A white LED 44.1k will indicate power-on status.
SelectPlayback:
Right click on speaker icon at the bottom right and select Playback Devices.
Choose SPDIF OUT and close window.
AdjustSoftware(Windows7Setup):
Direct Sound (DS) is the default Windows audio mode and it operates with the
Windows Mixer enabled. This means other sound prompts (such as email
notifications, etc) will be mixed into the music output. A single sample rate must
therefore be used asthe common denominator. For music playback in Windows 7,
WASAPI mode (Windows Audio Session API) is the preferred and purest mode.
(See WASAPI section)

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DirectSoundMode
Because the USB input is asynchronous, theU192S will operate at a fixed output
sample rate. Regardless of whether the music is recorded at 48k or 192k, whatever
actual DS format (bit depth & sample rate) is selected, that format will be the
operating format. Selection is made via the Audio Control Panel (CPL) section of
the NuForce Stereo Audio Control Panel. For the best sound quality in Direct
Sound mode, you will need to manually select the Audio Format so that it matches
the music file format. (See screenshots below).
In Direct Sound mode the Stream Statusis ALWAYS equal to the selected Audio
Format:

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When music is beingplayed, the Audio Format cannot be changed onthe fly. The
music must be stopped before you can make the next change (Note the message:
Stop Player
The ASIO tab should be set to 24-bit and Auto Adjust:

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WASAPIMode:
Some media players require a specialWASAPI plug-in to enable support for
WASAPI. Once installed and activated, WASAPI can be selected as the default audio
driver.
Below is a screenshot of Foobar2000 in Windows 7 (after WASAPI plug-in has
been installed) showingdifferent supported device driver options: Asyou can see,
both Direct Sound (DS) and WASAPI options are listed.

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Once WASAPI mode is selected, the native sample rate will be employed. No
adjustment in Audio CPL is required. Look at the Stream Status. You will note in
the screenshot below that the actual samplerate used doesnot equal the selected
sample rate. This is a result of WASAPI's ability to provide automatic playback of
the music file in its native format apart from those of other Sound Effects settings.
DownloadDriver(MacOSInstallation):
First, you will need to download the required driver from the following location:
http://www.nuforce.com/hp/support/download/download.php

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InstallDriver&Software:
After downloading the driver, the Installation program will begin. Click Continue >
Install > Install Software > Continue installation aseach screen appears. In the
last window, click Restart to reboot your computer in order to complete the
installation process.
ConnectHardware:
Once the software has been installed,connect a digital coaxial or optical cable
from the output of the U192S to the input of your DAC. Plug the provided USB
cable between the computer's USB portand the U192S. A whiteLED 44.1k will
-on status.
Adjust Software (Mac OS Setup):
Installation of the U192S on Apple Mac systems is straightforward and simple:
1. On the Desktop, select Launchpad.
2. Under Launchpad, select Utilities.
3. Under Utilities, select Audio/Midi Setup.
4. Under Audio/Midi Setup, select NuForce U192S as the default audio
device.
5. In the Format drop-down menu select the desired sample rate and bit
resolution.
6. The white LED on the U192S will indicate the selected samplerate.
7. Begin using the U192S by playing music filesvia your media software.

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