US-1641 Release Notes
Updates
Always ensure that you are running the latest driver soft-
ware and US-1641 firmware by visiting TASCAM’s web
site (http://www.tascam.com).
Important Notice about Installation with Windows Vista 32 and
Windows Vista 64 users
When you insert the CD-ROM for installing the driver
for this device into a PC, the autorun function causes the
installer to start automatically. If you will use the US-1641
with Windows Vista 32 and Windows Vista 64, however,
do not execute the installation with this installer. Instead,
quit this installer, and use Windows Explorer to find the
“Autorun Menu.exe” file on the installation CD-ROM and
double-click it. Use this installer.
After installing the driver, when you restart the PC, if a
message appears saying, “USB device not recognized,” and
the wizard to detect new hardware appears, turn off your
US-1641 once and then turn it on again. This will allow the
unit to be recognized correctly.
Installation FAQs
er and then launch “Setup.exe” and follow the on-screen
instructions.
For Windows
ª
What versions of Windows does the US-1641
support?
Windows driver version 1.02 supports 32-bit Windows XP
SP2, 64-bit Windows XP, 32-bit Windows Vista SP1 and
64-bit Windows Vista.
When I insert the installation CD-ROM into my
Windows computer, it does not automatically
launch a menu. How can I launch this menu?
It is possible that the CD-ROM autorun feature has been
disabled on your computer. You can launch the installa-
tion menu manually by opening the CD-ROM in Windows
Explorer and double-clicking the file: Autorun Menu.exe.
Windows driver version 1.01 supports 32-bit Windows
XP SP2 and 32-bit Windows Vista. This driver does not
support 64-bit Windows.
For Windows and Mac OS X
When I plug in my US-1641, Windows Hardware
Wizard appears but is unable to install the drivers.
How do I install the drivers?
ª
Which should I update first, the firmware or the
driver?
It is best to update to the latest driver first, and then update
the firmware.
The driver installation must be started before plugging in
your US-1641. If you have already plugged it in without
the drivers being installed, simply unplug the unit, exit
all hardware wizard windows, and then launch the driver
setup program. If you are using the CD-ROM that came
with your unit, inserting it should automatically launch a
menu that gives you the option to install the drivers. Select
“Install Drivers” and follow the on-screen instructions. If
you have downloaded drivers from TASCAM’s web site,
extract all the files from the ZIP archive to temporary fold-
How do I update my unit's firmware?
Simply download the latest firmware updater application
from TASCAM’s web site, launch it, plug your US-1641
into your computer, turn it on and wait for the unit to be
detected by the updater application, and then press the
“write firmware” button.
Owner’s Manual Addendum
Multi-client Operation
On Windows, the US-1641 has the ability to mix the
outputs of simultaneously running audio applications
that are using different driver protocols. For example, the
following configurations are possible:
ASIO App (Ableton Live) + WDM App (SONAR) + GSIF2
App (GigaStudio)
ASIO App (Ableton Live) + MME App (iTunes) + GSIF2
App (GigaStudio)
TASCAM US-1641
Firmware: V1.02, Windows driver: 1.02, Mac driver: 1.03, Cubase LE 4: 4.0.3 1
Release Notes
Known Issues
In order to use a US-1641 reliably with Windows
For Windows
•
ª
Media Player, select the US-1641 as the Sound play-
back Default Device in the Audio tab of the Sounds and
Audio Devices control panel. Do not configure the audio
interface from within Windows Media Player.
The US-1641 Windows drivers do not currently support
64-bit Windows.
In some rare cases, we have found that built-in mother-
board audio devices can interfere with SONAR when it
in ASIO mode, causing SONAR to report an error each
time it is launched. To work around this, disable the
built-in motherboard audio using your computer’s BIOS
setup screen.
Version 1.02
When a 96 KHz project is closed once, and then a 96
•
KHz project is opened, the internal sampling setting
is set to 44.1 KHz and the sound signal is muted. If
this should happen, press the Reset button in Cubase’s
Device Menu/Device Setup/VST Audio System. This
corrects the setting and allows sound to be heard.
•
•
When using Sonar 6.2 ASIO mode, the sampling
•
frequency display in the US-1641 control panel does not
change even if the sampling setting is changed in Sonar.
Internally, however, the setting has taken effect.
When using Sonar 6.2 ASIO mode, the 1641 is not
•
For Mac OS X
ª
recognized if a US-144/122L driver is installed. When
using Sonar, please avoid installing drivers for both the
US-1641 and the US-122L/144 on the same computer.
Version 1.00
When switching from 44.1/48 kHz to 88.2/96 kHz, you
•
may find you need to increase the audio buffer size to
eliminate audio artifacts. Not all audio applications
permit the user to adjust the buffer size, but most Digital
Audio Workstations offer this feature.
Some Macs may refuse to use the US-1641 for system
sounds.
GarageBand may not work properly at sample rates
other than 44.1 kHz.
The buffer size slider of a Native Instruments soft
synth (B4, Pro-53, etc) does not operate properly when
running as a standalone synth (not hosed in a DAW).
Version 1.00
PCs with nVIDIA USB controller chips may not offer
•
optimum performance for audio streaming over USB 2.0,
resulting in audio artifacts. A higher latency setting or
the addition of a non-nVIDIA USB 2.0 card is required.
To find out what controller chip your PC uses:
•
•
Go to START > Control Panel > System
Click on the Hardware tab, then the Device
Manager button1
11
21
•
Click the “+” (plus) sign next to Universal Serial
Bus Controllers
31
You will see the chip manufacturer of all
installed USB controllers
41
If a WDM audio app (iTunes / Windows Media Player)
is running and a US-1641 unit changes its sample rate,
the audio will play at the wrong pitch. The workaround
is to quit the WDM audio app and launch it again. The
app should now play audio at the correct pitch.
•
TASCAM US-1641
Firmware: V1.02, Windows driver: 1.02, Mac driver: 1.03, Cubase LE 4: 4.0.3 3
Release Notes
Cubase LE 4 (4.0.3)
When installing Cubase LE 4 on Windows XP, the
Cubase LE 4 installer may not give you the opportunity
to select a language.
On OS X, Cubase LE 4’s “Control Panel” does not
launch the US-1641’s control panel. Instead, use Finder
to launch the “TASCAM US-1641 Control Panel” from
the Applications folder.
Cubase LE 4 allows their ASIO ports to be renamed. In
the event it becomes necessary to reset the port names,
perform the following steps:
•
•
•
When installing Cubase LE 4 on Windows Vista, the
•
language selection window can be completely obscured
by the main window. If the installer seems to have
stalled, it may be waiting for you to select a language.
If this has happened, you will see a “Select Language”
button in the Windows task bar. Click the “Select
Language” button to bring the language selection
window into view.
From the Devices menu, select Device Setup1
Click on ASIO driver name that exists under VST
Audio System1
11
21
Click on Reset that exists in the Port System
Name1
31
Miscellaneous
When no signal is connected to the digital input, the
US-1641 internally loops back the signal going to the digi-
tal output.
Cubase and Nuendo allow their ASIO ports to be renamed.
In the event it becomes necessary to reset the port names,
perform the following steps:
11 From the Devices menu, select Device Setup1
21 Click on VST Inputs, then click the Reset button1
31 Click on VST Outputs, then click the Reset button1
D01012200E
Printed in China
TASCAM US-1641
Release Notes: Firmware: 1.02, Windows driver: 1.02, Mac driver: 1.03, Cubase LE 4: 4.0.3
4
|