Teac US-122 User Manual

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US-122
USB Audio/MIDI Interface
D00735710B
OWNER’S MANUAL
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER
Ü
ÿ
Ÿ
This appliance has a serial number located on the rear panel. Please record the model number and serial number and retain them for your records.
Model number Serial number
(OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALI­FIED SERVICE PERSONNEL.
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the prod­uct’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the liter­ature accompanying the appliance.
WARNING: TO PREVENT FIRE OR SHOCK
HAZARD, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.
Important Safety Instructions
1 Read these instructions. 2 Keep these instructions. 3 Heed all warnings. 4 Follow all instructions. 5 Do not use this apparatus near water. 6 Clean only with dry cloth. 7 Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8 Do not install near any heat sources such as radi-
ators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9 Do not defeat the safety purpose of the polarized
or grounding-type plug. A polarized plug has two blades with one wider than the other. A ground­ing type plug has two blades and a third ground­ing prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
For USA
TO THE USER
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide rea­sonable protection against harmful interference in a resi­dential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harm­ful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: a) Reorient or relocate the receiving antenna. b) Increase the separation between the equipment and receiver. c) Connect the equipment into an outlet on a circuit differ­ent to that to which the receiver is connected. Consult the dealer or an experienced radio/TV teccnicioan for help.
CAUTION
Changes or modifications to this equipment not expressly approved by TEAC CORPORATION for compliance could void the user’s authority to operate this equipment.
10 Protect the power cord from being walked on or
pinched particularly at plugs, convenience recep­tacles, and the point where they exit from the apparatus.
11 Only use attachments/accessories specified by
the manufacturer.
12 Use only with the cart, stand, tripod, bracket, or
table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13 Unplug this apparatus during lightning storms or
when unused for long periods of time.
14 Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
Do not expose this apparatus to drips or splashes.
Do not place any objects filled with liquids, such
as vases, on the apparatus.
Do not install this apparatus in a confined space
such as a book case or similar unit.
Declaration of Conformity
Model Number : US-122 Trade Name : TASCAM Responsible party : TEAC AMERICA, INC.
Montebello, California, U.S.A. Telephone number : 1-213-726-0303 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.
2 — TASCAM US-122
Table of Contents
1 Introduction
Overview ..................................4
Features ....................................4
What’s in the package ................4
Copyright and trademarks ..........5
Nomenclature used in this
manual .....................................5
2 Controls and indicators
Top Panel ..................................6
Rear Panel ............................... 7
Front Panel Descriptions .........8
3 Installation
System Requirements .............. 9
PC (Windows) ..............................9
Mac OS .........................................10
Installation ...................................10
Installation under Windows .......11
Macintosh ....................................13
Setting Up OMS (Mac OS pre-X
only) .........................................13
Tuning Your PC ........................14
Notes on USB interfacing ........15
4 Hooking up Audio and MIDI to the US-122
Hooking up audio ....................16
Hooking up MIDI .....................16
Using Direct Monitoring .........17
5 The US-122 Control Panel
Main Page ................................18
Buffer Size Adjustment ...........18
Optimizing the USB .....................19
The Chromatic Tuner ...............19
6 Interfacing with your Audio Software
Selecting the US-122 as your
Audio Device ........................20
Audio Control Panel ....................20
ASIO Control Panel ......................20
Setting the Sample Rate and Bit
Depth .......................................21
Input Enabling .............................21
ASIO 2 Direct Monitoring ....... 22
7 A Sample Recording Session in Cubasis
Setting Up ................................ 23
Recording Your Tracks ............ 24
Overdubbing ................................25
8 Other Applications
Setting up Sound Manager
Support – pre-Mac OS X ..... 26
MacOS 9.0 ................................ 26
MacOS 8.6 ................................ 27
Setting audio I/O options under
OS X (10.2.3 and above) ..... 28
To use the System Preferences ...28 Setting sampling frequency and bit
length under OS X (10.2.3 and
above) ......................................28
9 Technical Support
Troubleshooting (Windows) .. 29
Tech Support Contacts ............ 29
Before Contacting Us ..................30
Troubleshooting FAQ ............. 31
10 Specifications
Audio specifications ................ 32
Audio performance ................. 33
Other characteristics ............... 34
Physical characteristics ........... 34
Dimensional drawing ............. 35
TASCAM US-122 — 3
1 – Introduction

Overview

The US-122 is a USB powered audio/ MIDI interface designed for Digital Audio Workstation (DAW) software applications. Its design incorporates a two-input, two-output 24-bit audio inter­face with balanced inputs, input inserts, guitar impedance matching, phantom powering, and a 16-channel MIDI inter­face.

Features

The input section comprises a 24-bit audio interface, capable of streaming two simultaneous channels of audio into your computer. Inputs include two bal­anced XLR mic inputs with phantom power capability, two 1/4” balanced line inputs (switchable to high-impedance unbalanced, for direct input of a guitar, bass or other hi-Z source), with TRS

What’s in the package

The US-122 package contains the fol­lowing items in addition to the main unit and this manual. When opening the package, please make certain that all the included items are present. If anything is missing, contact the dealer where you purchased it.
• US-122 main unit
• USB cable
Because the US-122 is USB-based, it’s the ideal companion to any desktop- or laptop-based digital recording setup. And since it’s as compact, like a laptop, requiring no additional power source, it can be combined with one to create a complete portable digital audio worksta­tion solution.
inserts on each input channel. Outputs include a pair of unbalanced line outputs on RCA connectors, and a separate head­phone output.
The US-122 also features MIDI input and output ports, allowing you to send and receive data between your computer and other MIDI-equipped devices.
• CD-ROM containing drivers (Win­dows and Mac OS), Cubasis, and doc­umentation
• CD-ROM containing Gigastudio 24 and sample soundware (for Windows only).
• Warranty and registration cards for US-122
• Registration card for Cubasis
• TEAC address list
4 — TASCAM US-122

Copyright and trademarks

This product is designed to help you record and reproduce sound works to which you own the copyright, or where you have obtained permission from the copyright holder or the rightful licensor. Unless you own the copyright, or have obtained the appropriate permission from the copyright holder or the rightful licensor, your unauthorized recording, reproduction or distribution thereof may result in severe criminal penalties under copyright laws and international copy­right treaties. If you are uncertain about your rights, contact your legal advisor. Under no circumstances will TEAC Cor­poration be responsible for the conse­quences of any illegal copying performed using the US-122.
1 – Introduction
Microsoft, Windows, Windows 98, Win­dows Me, Windows 2000 and Windows XP are trademarks of Microsoft Corpo­ration.
The full name of the product referred to as “Windows 98” is “Microsoft® Win­dows® 98 operating system”.
Pentium is a registered trademark of Intel Corporation.
MIDI is a registered trademark of the Association of Manufacturers of Elec­tronic Instruments (AMEI).
Mac and Mac OS are trademarks of Apple Computer
All other band or product names are trademarks or registered trademarks are the property of their respective compa­nies or organizations.

Nomenclature used in this manual

The following conventions are used in this manual:
Physical controls, indicators and connec­tors on the US-122 are shown
THIS
.
LIKE
This typeface is used to designate soft-
ware dialog messages .
This typeface is used to designate soft-
ware menu functions and on-screen con­trollers.
TASCAM US-122 — 5
2 – Controls and indicators

Top Panel

123456
789 A
1 LINE OUT level control Con-
trols the level to the RCA outputs.
PHONES level control Controls the
level to the headphones output.
2 MIDI IN indicator Indicates
presence of incoming MIDI data at the MIDI input.
MIDI OUT indicator Indicates trans-
mission of MIDI data from the MIDI output.
6 — TASCAM US-122
3 USB indicator Indicates a valid
USB connection to the host computer when lit.
4 DIRECT switch Enables/dis-
ables direct monitoring of the input signals
5 MONO switch Enables/dis-
ables mono output from the direct moni­toring system.
2 – Controls and indicators
6 DIRECT MONITOR level
control
direct monitoring signal, when this is enabled.
Adjusts the level of the
7 L and R input level
controls
Rotate clockwise to increase the input level of audio sources.
Input level adjustment.
8 MIC/LINE / GUITAR
switches
ally between mic/line level and Hi-Z (guitar) level.
Switch inputs individu-
9 SIGNAL indicators Indicate
the presence of an audio signal on the respective channel (specifically, when the input level exceeds -37 dBFS).
OL indicators Indicate an overload of
the input level to the respective channel (specifically, a level of -2.5dBFS).

Rear Panel

A PHANTOM switch Switches
+48V power to the microphone inputs to allow powering of condenser micro­phones.
NOTE
NOTE
Only use the phantom powering with con­denser microphones which need it. Keep this switch in the other kinds of equipment connected to the XLR inputs.
To avoid noise and possible damage to equipment, turn down the input controls when switching the phantom power on and off.
Also note that this setting consumes power. If you are operating the unit with a bat­tery-powered laptop computer, this will reduce the battery life of the computer.
OFF
position with all
LEVEL
BC D EF
B USB jack Input for USB connec-
tion (USB 1.1) to host computer.
C MIDI OUT MIDI output D MIDI IN MIDI input,
E OUTPUT L/R jacks Unbal-
anced (RCA) analog audio outputs.
F PHONES jack Standard 1/4" ste-
reo headphone output.
TASCAM US-122 — 7
2 – Controls and indicators

Front Panel Descriptions

GH
I
G MIC IN L and R Balanced XLR
Inputs
L and Rfor microphones.
1=Ground, 2=hot, 3=cold
H LINE/GUITAR L and R Ana-
log inputs (1/4" TRS jack - tip=hot, ring=cold, sleeve=ground)
L and R. Bal-
anced when is set to to
GUITAR.
MIC/LINE-GUITAR switch
MIC/LINE; unbalanced when set
I INSERT L and R TRS 1/4" jacks
(tip=send, ring=return, sleeve=ground) for analog inserts for
L and R inputs.
8 — TASCAM US-122

System Requirements

PC (Windows)

3 – Installation
Minimum requirements: Pen-
tium II - 266 MHz (or equivalent) pro­cessor running Windows 98 (Second Edition) or Windows Me (Millennium Edition), Windows 2000 or Windows XP, 96MB RAM.
Recommended: Pentium II
300MHz processor with 128MB RAM or better (these requirements are for use with Cubasis VST. Other applications will have different requirements. Consult your application’s manufacturer for fur­ther information).
NOTE
NOTE:
The US-122 is not supported under Win­dows 95. We also do not recommend Win­dows 98 First Edition, due to its limited USB implementation. A fast EIDE hard disk is required for throughput of multiple audio tracks. 96MB RAM is the minimum recom­mended, but with all digital audio pro­grams, you will obtain better results with more RAM. An SVGA graphics card is sug­gested (minimum 256 colors, 800x600 reso­lution or better).
Although this product has been checked for use with normally configured com­puters which meet the specifications above, we cannot guarantee the opera­tion of the product, even with computers meeting the specifications, due to differ­ences in architecture and implementation between computers.
Chipsets are also a concern with USB audio. We have found that the most dependable motherboards are ones
which utilize Intel-based chipsets. You can determine your chipset by going into the Device Manager. On the Windows 98 desktop, right click on and select
Manager
(
+) sign next to Universal Serial Bus
Controllers
Properties. Click on the Device
tab, and then click on the plus
. (see illustration below)
My Computer,
The US-122 has been successfully used with the following chipsets:
• Intel 82371 AB/EB PCI to USB Uni­versal Host Controller
• Intel 82371 SB PCI to USB Universal Host Controller
• Intel 82801 AA PCI to USB Universal Host Controller
• ALi PCI to USB Open Host Controller
Some other chipsets, notably those spec­ifying Open Host Controllers or OHCI (rather than Universal Host Controllers or UHCI), have been subject to occa-
TASCAM US-122 — 9
3 – Installation
sional incompatibilities. While most OHCI systems have no problems with the US-122, occasionally some older OHCI systems will exhibit problems. We have found that, in the majority of these rare cases, a PCI-based USB card utiliz-

Mac OS

PowerPC running Mac OS 8.6 or better, and a USB port. Any Macintosh com­puter with one or more USB ports run­ning Mac O/S 8.6 or later (check the Web site for updates), or Mac OS X
10.2.3 or above. Very early iMac computers may need
one (or more) firmware updates to use the US-122. Which firmware update(s) is (are) needed depends on which Mac OS version is installed in the early iMac. Apple provides details in Apple Support Article #58174.

Installation

Because the US-122 is a USB device, connection is straightforward. Simply plug the USB cable into the US-122, and the other end into your computer. How­ever, you should not connect the unit before installing the drivers (see below).
Windows machines: Make certain
that your computer’s USB host port is enabled (normally, most standard PC BIOS settings default to enabled, but make certain that it hasn’t been turned off in the BIOS).
Also make sure that virus protection is turned off before you install the US-122 drivers.
ing an Opti-chip controller will work dependably. These cards (also available in PCMCIA format for laptops) are available through a number of manufac­turers.
PowerBook G3 Series (or later) with built in USB (or using a 3rd party PCM­CIA USB Card) have been tested and work fine. Additionally, older PowerMac computers using 3rd party PCI-based USB cards also have been tested and work fine. Any iMac, G3 or G4 will work fine as well. Mac OS versions ear­lier than 8.6 do not implement full USB support, and are not recommended. Again, plenty of RAM and fast drives are suggested.
NOTE
NOTE:
Handle the enclosed CD-ROM with care. If it becomes dirty or scratched, it will be impossible for a computer to read it, and the software cannot be installed. If the disc becomes unreadable, a charge will be made for its replacement.
Do not attempt to play the enclosed CD­ROM using an audio CD player, as this may cause damage to hearing, as well as to speakers, etc.
Use only the enclosed USB cable to connect the US-122 and the computer. Do not use other types of cable for this purpose, as some cables contain resistors. If you attempt to use such a cable, the audio input and output will not work properly, and the sound level will be inaudible or very faint.
10 — TASCAM US-122

Installation under Windows

The US-122 drivers are available on the CD as executable installers. You’ll find two executable installer files in the
Driver folder on the disc, labeled as: US122_Win9x_x_yy.exe (for Windows
98 Second Edition and Me (Millennium Edition)) and as
US122_Win2k_x_yy.exe
(for Windows 2000 and Windows XP) where
x and yy represent the version
numbers. Note that we have also included the indi-
vidual driver files, available from the root level of the CD. However, we rec­ommend using the installers, as they will also locate and uninstall any files per­taining to older versions of the US-122 drivers.
NOTE
You should also check the TASCAM Web site to determine the latest version of the drivers. If necessary, download and install these latest drivers, following the instruc­tions given here.
To install under Windows 98SE or Me:
under Windows 98 SE (Second Edition) or Me (Millennium Edition). Due to its limited USB capabilities, First Edition Win98 is not recommended.
NOTE
Run the Installer with the US-122 NOT con­nected to the computer.
Note that the US-122 will run
1 Double click on the executable file
US122_Win9x_y_zz.exe (where y
and
zz represent the version num-
ber). The installer will run.
3 – Installation
2 Click the Setup button. The
Welcome dialog box will appear.
3 Click the Next button. The driver
files will be installed to your hard drive.
In some cases, the Add Hardware Wizard may ask for the file
US122WDM.SYS. Should this occur,
click
Browse and direct it to the
path
Windows/System32/Drivers.
In some cases, the Add Hardware Wizard may ask for your Windows 98 or Windows Me CD-ROM if it is unable to find all the needed sys­tem files. We suggest you have it handy.
4 The Setup Complete dialog will
appear. Click
my computer
button. The computer will reboot.
5 Connect the US-122 to the com-
puter. The Windows Plug and Play system will notice a new USB device and start the Add New Hardware wizard, which will find the needed files on its own. This will take about 30-60 seconds.
The drivers are now installed and the US-122 is ready to operate.
NOTE
If you are running Windows 98SE, you may need to install the appropriate Microsoft Hotfix #Q269601.
Yes, I want to restart
, followed by the Finish
TASCAM US-122 — 11
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