AcoustX D2 User manual

D2 Acoustical Measurement System
Studio QuickStart Guide
Version 1.77
AcoustX LLC
122 Calistoga Road #318
Santa Rosa, CA 95409
Tel: [phone]
Fax: [phone]
www.acoustx.us

Welcome to the AcoustX D2 Studio Version and win|RTA software. This
guide will provide you with an overview of setting up and connecting the
hardware, and installing and running the software. The QuickStart Guide
serves as a basic reference for the D2 system, but is not intended as a
detailed guide to operation of the system. More detailed reference
information regarding system operation and the performance of acoustical
tests is provided through separately offered training seminars. Contact
AcoustX regarding the availability of training seminars.
IMPORTANT NOTES
• Be sure to plug in the Firewire connector on the back of the Traveler in
the proper orientation. It is possible to force it in upside down.
• If you want to power the Traveler by bus power, your computer must
have a built-in 6-pin Firewire port. You can run on bus power from a
card adaptor, but you must add external power to your adaptor card.
page 2
N O T I C E
© Copyright 2008 AcoustX LLC. All rights reserved.
This manual contains confidential and proprietary information
protected by copyright laws. No part of this publication may
be reproduced, transmitted, transcribed, stored in a retrieval
system, or translated into any language, in any form or by
any means, electronic, mechanical, photocopying, recording,
or otherwise, without the prior written permission of AcoustX.
The information furnished herein is believed to be accurate
and reliable. However, AcoustX assumes no responsibility for
its use, or for any infringements of patents or other rights of
third parties resulting from its use. AcoustX reserves the right
to modify at any time the product functionality and features
where appropriate, without notice.
Version 1.77
L i m i t e d W a r r a n t y
AcoustX LLC warrants the D2 Acoustical Measurement System
hardware and its parts against defects in materials or workmanship
for a period of one (1) year from the original date of purchase.
During period, AcoustX will repair or replace a defective product or
part without charge to the customer. The customer is responsible
for delivering the defective component (or the entire D2 Acoustical
Measurement System, if requested) to AcoustX. The customer must
pay for all shipping and insurance charges transportation of the
defective component(s) to AcoustX for repair. AcoustX will assume
responsibility for shipping and insurance charges involved in
returning the component(s) to the customer. The win|RTA software
is distributed on an “as is” basis, without warranty. AcoustX makes
no representation or warranty, either expressed or implied, with
respect to the software programs, their accuracy, quality, or fitness
for a specific purpose. AcoustX shall have no liability to the
purchaser, or to any other person or entity with respect to any
liability, loss, or damage caused, or alleged to have been caused
either directly or indirectly by the software contained on the
distribution disk. This includes, but is not limited to, interruption of
service, loss of data, time, or profits, or consequential damages
resulting from the use of the software. If the distribution medium is
defective, you may return it for a replacement within the warranty
period.

HARDWARE CONNECTION
page 3

1) Used to configure the Traveler. See Installation Procedure below.
2) These controls set the microphone input gains. When using the D2 Studio Versio, the gains
should be set to +12 dB. The 48V switch should be to the right, enabling phantom power to the
microphones.
3) The optical I/O and ADAT SYNC IN are not used.
4) Not used in most situations.
5) Firewire connection to computer. Use either connector. BE CAREFUL TO PLUG THE
FIREWIRE CONNECTOR IN CORRECTLY. IT IS POSSIBLE TO FORCE IT IN UPSIDE
DOWN!
6) AES/EBU I/O used to measure dBFS and to generate test signals in the digital domain.
7) Used to configure the Traveler. See Installation Procedure below.
8) Panel readouts for Traveler configuration and signal indication.
9) S/PDIF I/O used to measure dBFS and to generate test signals in the digital domain.
10) Analog I/O
1. There are 8 balanced outputs. For correct output levels, you must indicate whether or not
you are terminating the outputs balanced or unbalanced. There is a 6 dB difference between
these settings.
2. In normal operation, Traveler Inputs 1-4 are reserved for microphones, so the Traveler Input
#5 is Channel 1 on the win|RTA software. Input #6 is Channel 2. Your Traveler will have a
label to correctly identify the inputs as 1 & 2.
11) Phantom powered microphone inputs.
12) Rack ears (not typically used with the D2).
13) Not used.
14) Power – three ways of powering the Traveler
1. Bus power from 6 pin Firewire connector. Note that most laptops have 4-pin
connectors, and thus are unable to utilize this option. Pcmcia cards cannot supply power
without themselves being externally powered.
2. The Traveler can be powered from standard lighting battery packs utilizing 4-pin xlr
connectors (optional).
3. External power adaptor (supplied).
page 4

Installation Procedure
First install the Traveler software from the MOTU cdrom by following this procedure:
1) Insert cd into computer cd drive and click on My Computer to open the cd.
2) Open "Firewire, USB2 Audio" folder, then 32-bit firewire folder.
3) Double-click on Setup.exe.
4) Five drivers will be installed.
5) Remove the cd from the computer and reboot.
6) Connect the Traveler and then turn it on.
7) The "Found New Hardware" window will pop up. (If the hardware wizard does not recognize
the hardware as MOTU, then the software may not have been installed properly.)
8) The wizard will ask "Can Windows connect to Windows Update to search for software? Answer
"No, not this time".
9) In the next window, click "Install software automatically".
10) If you get a warning that the driver is not digitally signed, click continue anyway.
11) Three drivers will be installed.
12) Configure drivers by opening the MOTU Audio Console. Select "Enable full Wave support for
legacy (MME) software". Set Sample Rate to 48000.
Then install the win|RTA software for the AcoustX cd. Insert the cd and double-click on the Setup
icon. Follow the instructions during the installation.
Open the Config menu in win|RTA. Select the "Mics" button and load the microphone calibration
files. The serial numbers are assigned in ascending numerical order (see Config screenshots later
in this document). Next, with the Traveler connected and turned on, select the "Interfaces" button
and click on "Select". Choose MOTU Traveler from the list of available interfaces. Click "Save
Configuration".
The Traveler contains all the necessary parameters for proper operation with win|RTA. If you want
to verify that the Traveler is set correctly, you can reload the Studio Preset. There are two ways to
do this. First, you can use the Cuemix software that is automatically installed. From the File menu,
select Load Preset, then select Studio. The preset can also be loaded from the Traveler front
panel. Push Mix/Setup. Turn this knob to "Load Preset". Push Select "[1]Studio". Press Mix to
exit.
The Studio Preset can be created from the the Traveler default settings. First, using Cuemix, set
all faders to minimum. Then set the mic input channels, inputs 1-4, to +12 dB gain. This can be
verified by pressing the input gain for each channel once. The gain setting will appear on the
Traveler display. Save the Preset as "Studio".
page 5

Main Software Screen
Print screen
Input channel
Clear screen
and reset to
default settings
Save the
current
measurement
(Shift-Click to
export as
text)
Exit
win|RTA
SPL/ Main
reading
window
Select file to
display as File
A (left bar
when A and B
selected)
Select file to
display as File B
(right bar when A
and B selected)
Filename
for File B
Set
analyzer
mode
Measurement
units
Open Config
window
Set length
of timed
average
Timed
average
countown
Reference
line
Change
Reference
line
Turn on
analyzer Stop all
processes
Pink noise
ON/OFF
Vertical
scale
Screen
response
Vertical
resolution
Frequency
resolution
Display
offset
File view
mode
User definable function keys. Shift key
enables new row of keys. Click on F-key
number to display and set funtion choices.
Filter band
center
frequencies
SPECIAL KEYS AND FUNCTIONS
- ESC key kills all processes
- PgUp/PgDn or mouse wheel moves reference line
- Shift shows new row of function keys
- Shift-click on Save button to export as text (.TXT)
- Click and drag mouse on display to zoom view in
RTA mode
- Right-click displays edit menu when in
comment
- Hold cursor over filename field to see full
pathname
CTT MODE KEYS
- Up/Down arrow moves among menu selections
- Left/Right arrow moves in or out of current menu
- Alt-Left Arrow moves up one levele when in a
data entry field
- Shift-click on Home CTT Coverage test button to
rename
page 6
Start
selected
test

Technician name
Organization
Name of theatre
Select data
directory
page 7
Selected data directory
Defaults to "My Documents"
Set software options for
type of room under test
Set default
units for
measurements
Display octave markers
Show bar values when cursor is
moved over a bar
Enable balloon help
Set length of User Average
Set display for
Cat. No. 566
test film (film
projectors)
Enable Variable
X-curve (Cinema)
Configuration Screen: Profile and Display
Write
configuration
data to disk

page 8
Disable one or
more microphones
Enable and load microphone
calibration files.
Adjust the gain of individual
microphones.
Select audio
interface
Enable D2 Controller
(Cinema Version)
Configuration Screen: Microphones and Interfaces

page 9
Configure PINK Button behavior
Select test signal output port
Set units of measure and level for outputs
Enable outputs. In Analog mode,
the channels can be named.
Set output termination for accurate
readout in Level box above.
Configuration Screen: Outputs
Select Input
Select input channel
(Mic selection is on main screen)