Meyer Sound UPQ-D Series, Руководство по эксплуатации

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CHAPTER 7: SYSTEM DESIGN AND INTEGRATION TOOLS
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GALILEO GALAXY NETWORK PLATFORM
The Galileo GALAXY Network Platform is a sophisticated
loudspeaker management tool for controlling all
Meyer Sound speaker types. The GALAXY loudspeaker
processor extends a high level of audio control in driving
and aligning loudspeaker systems with multiple zones. It
provides a powerful tool set for corrective equalization (EQ)
and creative fine-tuning for a full range of applications from
touring to cinema.
Users can readily program the GALAXY processor using
Compass software running on a host computer or via the
Compass Go application for the iPad. Compass Control
Software includes custom-designed settings for each family
of speakers, as well as to integrate families together. For
example, the Product Integration feature matches the phase
characteristics between Meyer speaker families to ensure
the most coherent summation.
Processing tools for inputs and outputs include delay,
parametric EQ and U-Shaping EQ. Output processing also
includes polarity reversal, Low-Mid Beam control (LMBC),
atmospheric correction, and All Pass filters.
The built-in summing and delay matrices allow a user to
easily assign gain and delay values, respectively, at each
cross point. This capability greatly facilitates using one
loudspeaker to satisfy multiple purposes.
Front panel controls let a user intuitively and quickly operate
a GALAXY processor without a computer during live use.
The rear panel includes SIM bus port(s) for direct connection
to Meyer Sound’s SIM audio analyzer, allowing the GALAXY
processor to function as a line switcher for the analyzer.
With this capability, a user can take measurements from any
selection of GALAXY inputs and outputs without patching
beyond a single connection to the analyzer.
The GALAXY 408, GALAXY 816 and GALAXY 816-AES3
processor versions have the same audio processing
capability with different I/O. See www.meyersound.com to
locate their datasheets for more information.
SIM MEASUREMENT SYSTEM
The SIM audio analyzer is a high-resolution audio
measurement system comprising software, hardware,
microphones, and accessory cables. SIM presents measured
audio frequencies at a resolution of 48 points per octave,
where the 48 points per octave are arranged in even
frequency increments in each octave group, equal to the total
frequencies in that octave divided by 48. This resolution
allows application of precise corrections to balance system
response using frequency and phase domain information.
Source Independent Measurement Technique
The SIM audio analyzer implements Meyer Sound’s source
independent measurement technique. This dual-channel
method makes analysis of statistically unpredictable
excitation signals possible. Any excitation signal, within the
desired frequency range, can be used to obtain highly
accurate measurements for acoustical or electronic systems.
For example, during a performance, both the input signal and
the measured output of the loudspeaker system can be
analyzed by SIM and the results can be used to:
• View measurement data as amplitude versus time
(impulse response) or amplitude and phase versus
frequency (frequency response)
• View single-channel frequency domain data with a
logarithmic frequency axis
• Determine and internally compensate for propagation
delays using the SIM Delay Finder
SIM Applications
SIM’s main applications are testing and aligning loudspeaker
systems, which entails:
• Measuring propagation delays between subsystems to
determine appropriate delay times
• Verifying correct polarity
• Measuring and comparing phase responses of
subsystems
• Measuring variations in frequency response caused by the
acoustical environment and the placement and interaction
of loudspeakers to determine corrective equalization
• Optimizing subwoofer integrations
• Optimizing loudspeaker arrays
SIM can also be used in the following applications:
• Microphone calibration and equalization
• Transducer evaluation and correction
• Echo detection and analysis
• Vibration analysis
• Architectural acoustics