Tascam Music Mixer US 1641 User Manual

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
 

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