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CHAPTER 6: SYSTEM DESIGN AND INTEGRATION TOOLS
Using MAPP Online Cinema
MAPP Online Cinema is compatible with the following oper-
ating systems:
■
Windows
®
■
Linux
®
■
Unix
Mac OS
®
■
For information on which operating system versions are
supported, visit www.meyersound.com.
Downloading and Installing MAPP Online Cinema
To use MAPP Online Cinema, you must register online at
www.meyersound.com. After entering your registration
information, an email will be sent to you with your user
name, password, and the MAPP Online Cinema download
location. On-screen instructions will guide you through the
download and installation process.
The MAPP Online Cinema client software is regularly
upgraded to add support for the latest Meyer Sound loud-
speakers, as well as to add feature enhancements. Most
upgrades are downloaded automatically when logging on to
a MAPP Online Cinema session. The MAPP Online Cinema
database includes all Meyer Sound EXP screen channel
loudspeakers, surround loudspeakers, subwoofers, and
processors.
SIM 3 MEASUREMENT SYSTEM
The SIM 3 audio analyzer is a high-resolution audio mea-
surement system comprised of software, hardware, micro-
phones, and accessory cables. The SIM 3 is optimized for
measuring audio frequencies with resolutions up 1/48th of
an octave, allowing you to apply precise corrections to bal-
ance system response using frequency and phase domain
information.
24
Source Independent Measurement Technique
The SIM 3 audio analyzer implements Meyer Sound's source
independent measurement technique, a dual-channel
method that accommodates statistically unpredictable exci-
tation signals. Any excitation signal within a desired fre-
quency range can be used to obtain highly accurate
measurements for acoustical or electronic systems. For
example, concert halls and loudspeaker systems can be
captured during a performance and used as a SIM 3 test
signal, so you can:
■
View measurement data as amplitude versus time
(impulse response) or amplitude and phase versus fre-
quency (frequency response)
■
Utilize a single-channel spectrum mode
■
View frequency domain data within a logarithmic fre-
quency axis
■
Determine and internally compensate for propagation
delays using the SIM 3 Delay Finder
SIM 3 Applications
The SIM 3's primary applications are testing and aligning
loudspeaker systems, which entails:
■
Measuring propagation delays between subsystems to
determine appropriate polarities and delay times
Measuring variations in frequency response caused by
■
the acoustical environment and the placement and inter-
action of loudspeakers to determine corrective equaliza-
tion
■
Optimizing subwoofer integrations
■
Optimizing loudspeaker arrays
The SIM 3 is also versatile and accurate enough for the fol-
lowing applications:
Microphone calibration and equalization
■
Transducer evaluation and correction
■
Echo detection and analysis
■
■
Vibration analysis
■
Architectural acoustics
■
Underwater acoustics
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