Just found it :-
Windows 7 ASIO USB audio set
ASIO (Audio Stream Input/Output
WASAPI as it bypasses the Windows Kernel Mixer (and the distortion this adds).
use ASIO the media player will normally require some kind of output plug in, but it is only pos
use ASIO in Class 2 USB Audio mode (which allows transmission of higher data rates), using a
dedicated driver (such as the free
ASIO is preferable to all Kernel streaming audio transport methods (eg. WASAPI or Di
it delivers lower latency, lower jitter and no mixing of audio streams
Using the free Cambridge Audio USB 2.0
driver in conjunction with ASIO will give the best performance possibl
In order to run the Cambridge Audio driver and play 24
the following minimum spec;
- 1gb RAM
- 1.6GHz core2 or amd equivalent
- Made after 2006 (UHCI compliant chipset)
- XP/Vista/7 with latest service packs installed
The example below shows how to configure your Windows 7 PC for use with a Cambridge Audio USB
product using ASIO as an output method. foobar2000 is the media player used in this example.
1. Connect your Cambridge Audio USB product to your PC using a USB Typ
Switch on your Cambridge Audio USB prod
operation – see product user manual for details.
A message will appear at the bottom of your screen informing you that a new device has
been discovered. Shortly afterwards, an error message will appear informing you that the
device was not installed properly. This is because the free Cambridge Audio USB 2.0 driver is
required but has not yet been installed
2. Download, save and unzip
www.cambridge-audio.com/DacMagicPlusSupport
The downloaded zip file must be unzipped and can be saved to a convenient location on
your PC, such as the desktop.
Windows 7 ASIO USB
USB audio set-up guide
ASIO (Audio Stream Input/Output) is another method of audio transport which is superior to
WASAPI as it bypasses the Windows Kernel Mixer (and the distortion this adds).
use ASIO the media player will normally require some kind of output plug in, but it is only pos
use ASIO in Class 2 USB Audio mode (which allows transmission of higher data rates), using a
free Cambridge Audio USB 2.0 driver).
ASIO is preferable to all Kernel streaming audio transport methods (eg. WASAPI or Di
jitter and no mixing of audio streams.
Cambridge Audio USB 2.0 audio driver allows access to ASIO, so therefore using the
driver in conjunction with ASIO will give the best performance possible.
In order to run the Cambridge Audio driver and play 24-bit/192kHz content, the PC needs to have
z core2 or amd equivalent
Made after 2006 (UHCI compliant chipset)
XP/Vista/7 with latest service packs installed
The example below shows how to configure your Windows 7 PC for use with a Cambridge Audio USB
product using ASIO as an output method. foobar2000 is the media player used in this example.
your Cambridge Audio USB product to your PC using a USB Type A to Type B cable
your Cambridge Audio USB product and ensure that it is set to USB Class 2
see product user manual for details.
A message will appear at the bottom of your screen informing you that a new device has
red. Shortly afterwards, an error message will appear informing you that the
device was not installed properly. This is because the free Cambridge Audio USB 2.0 driver is
but has not yet been installed.
, save and unzip the Cambridge Audio USB 2.0 driver from.