Meyer Sound 80 Manuale Utente
CHAPTER 7: SYSTEM DESIGN AND INTEGRATION TOOLS
34
Using MAPP Online Cinema
MAPP Online Cinema is compatible with the following oper-
ating systems:
ating systems:
■
Windows
■
Linux
®
■
Unix
®
■
Mac OS
®
10.4 and later
Downloading and Installing MAPP Online Cinema
To use MAPP Online Cinema, you can register at the follow-
ing link:
ing link:
http://meyersound.com/products/mapponline/cinema/
register/
register/
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 pro-
cess.
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 pro-
cess.
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.
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.
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.
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:
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)
(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
quency axis
■
Determine and internally compensate for propagation
delays using the SIM 3 Delay Finder
delays using the SIM 3 Delay Finder
SIM 3 Applications
The SIM 3’s primary applications are testing and aligning
loudspeaker systems, which entails:
loudspeaker systems, which entails:
■
Measuring propagation delays between subsystems to
determine appropriate polarities and delay times
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
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:
lowing applications:
■
Microphone calibration and equalization
■
Transducer evaluation and correction
■
Echo detection and analysis
■
Vibration analysis
■
Architectural acoustics
■
Underwater acoustics