MEYER SOUND GALILEO : LOUDSPEAKER MANAGEMENT
SYSTEM:
The Meyer Sound Galileo loudspeaker management system is a hardware/software
system providing all of the facilities required to drive and align sound reinforcement
systems employing multiple zones. The system consists of the Meyer Sound Galileo
616, a six-input/16-output, 2U, fully digital matrix processor and Compass software
for comprehensive control of the Meyer Sound Galileo 616 through a graphical
environment running on a remote computer. The Meyer Sound Galileo 616 can also
be controlled directly from its front panel for maximum flexibility.
Designed as the perfect complement to Meyer Sound’s self-powered loudspeakers,
the Meyer Sound Galileo system includes array compensation for M Series array
products, presets for Meyer Sound systems of various sizes and types, and digital
implementations of popular features developed over years by Meyer Sound for
its acclaimed analog processors, including air absorption compensation filters
and equalization from the CP-10, VX-1, and LD-3.
MEYER SOUND
GALILEO : FEATURES AND BENEFITS
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- DSP-based processing.
- Six inputs — analog, AES/EBU or a mixture
— and 16 analog outputs with full matrix mixing and routing for
driving systems from small to very large.
- Fixed latency across all output channels regardless
of processing applied.
- Direct connection to Meyer Sound’s SIM
3 audio analyzer.
- Digital implementation of popular Meyer Sound
processing features, including air absorption compensation filters and
equalization from the CP-10, VX-1 and LD-3.
- Presets for setups of Meyer Sound line array
and point-source systems from small to very large.
- Array compensation for Meyer Sound line array
products.
- Ethernet connection for remote control from laptop
computers (Windows or Macintosh) and wireless tablets.
- Front-panel operation for stand-alone control.
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- Highest quality audio: A/D/A conversion with
24-bit resolution at 96 kHz, digital input signals sample rate converted
to 96 kHz.
- All internal processing performed at 96 kHz,
32-bit floating point resolution.
- Full bidirectional communication between unit
and remote control devices insures that parameter settings are always
current in both.
- Up to 2 seconds of delay on inputs and outputs.
- Robust output line drivers easily drive Meyer
Sound self-powered systems over long cable runs.
- TruShaping EQ and Composite EQ filtering provide
an innovative approach to system equalization that yields appropriate
correction with the least impact on phase response.
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MEYER SOUND GALILEO 616
HARDWARE |
| Audio Inputs and Outputs:
Galileo 616’s audio I/O features six analog inputs on balanced XLR
connectors feeding state-of-the-art A/D converters operating at 24-bit resolution,
96 kHz sample rate. Three of the inputs can be individually switched to
operate as standard stereo AES/EBU digital audio inputs, accepting signals
at sample rates up to 96 kHz. Since all internal processing is performed
at 96 kHz, 32-bit vector floating point, any signals entering at lower sample
rates are upsampled using state-of-the-art hardware sample rate converters.
The six input channels can consist of a combination of analog and digital
inputs.
The 16 outputs feature high-resolution 96 kHz, 24-bit D/A converters,
and offer the same robust line driving capabilities as those of Meyer
Sound’s analog line driver products, up to +26 dBu, allowing the
Galileo 616 to easily drive Meyer Sound self-powered loudspeakers to full
output at all frequencies, even over long lines.
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Communications: The
digital world is about networking devices together. Galileo 616 provides
exceptional capabilities in this regard. Its Ethernet connection allows
Galileo 616 to be remotely controlled from a computer or wireless tablet
running Meyer Sound Compass control software under either the Macintosh
or Windows operating system. Full bidirectional communication ensures
that the user is always viewing current settings, whether operating the
unit remotely or from the front panel. |
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| SIM 3 Integration: The
rear panel also includes a direct connection to Meyer Sound’s SIM
3 audio analyzer which allows Galileo 616 to act as a line switcher for
the analyzer. This means that users can measure across any selection of
Galileo 616’s inputs and outputs without any patching beyond a single
cable connection to the analyzer, providing maximal flexibility with no
extra setup.
The Meyer Sound Galileo 616 is designed to afford a broad upgrade path
for future interfacing options, which can include popular existing or
future digital audio networking protocols.
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| Front Panel Control:
In addition to its remote control capabilities, Galileo 616 features a comprehensive
and intuitive set of front panel controls and an LCD screen, allowing it
to be operated without the use of a computer. Crucial information is available
at a glance and hardware controls make quick adjustments easy. A carefully-crafted
user interface gives Galileo 616 the quick, intuitive operation required
for live use. Each input sports a 26-segment LED ladder meter, plus mute
and select buttons/indicators, while each output has a bi-color level
LED and mute and select buttons. Three high-resolution encoder knobs are
used to make parameter adjustments, which are shown on the 128x64 pixel
liquid crystal display.
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| Powerful DSP Architecture:
Galileo 616 is built around a monolithic, 1 GHz vector DSP architecture
employing a direct DMA audio path to maximize processing power and guarantee
fixed low-latency performance, no matter how much processing is applied.
High-quality algorithms at 96 kHz sampling rate, 32-bit floating-point resolution
are used to implement a large assortment of processing. Even when applying
all available processing to every channel, Galileo 616’s DSP engine
retains substantial processing headroom. This design demonstrates how Meyer
Sound looks towards the future as much as to the present. |
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| Real-World Protection:
Meyer Sound knows that sound reinforcement requires expecting the unexpected.
Galileo 616 offers protection against inadvertent changes that can result
in serious problems. The AC power switch is software-activated, so that
accidental button-pushes cannot turn off the unit’s power. A locking
PowerCon AC connector ensures the power cable cannot be yanked out by an
errant foot. And user-programmable lockout of all front panel controls offers
four levels of protection to keep curious fingers from changing things best
left untouched. |
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MEYER SOUND GALILEO 616
PROCESSING |
Processing Functions:
Providing up to two seconds of delay for each input and output represents
just the beginning of Galileo 616’s power; it is the unit’s
filtering that truly sets it apart in the realm of DSP-based loudspeaker
management systems. Each input and output includes a careful digital implementation
of Meyer Sound’s famous CP-10 complementary phase parametric equalization
(five bands on inputs, ten bands on outputs), coupled with our new TruShaping
program filters. This unique combination gives users the ability to treat
acoustical problems appropriately and accommodate subjective needs without
creating excessive phase shift that can degrade intelligibility and signal
clarity.
Also supplied in Meyer Sound's Galileo 616 are digital implementations
of the subwoofer crossover, air absorption compensation, and M Series
array compensation filters first realized in the LD-3 compensating line
driver.
Meyer Sound's Galileo 616 all-digital design also enables Meyer Sound
to give users entirely new capabilities, like low frequency coverage shaping
for widening low-frequency dispersion patterns. A library of coverage-shaping
presets is provided for large-scale M Series products, such as the MILO
high-power curvilinear array loudspeaker and M3D line array loudspeaker. |
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| Composite EQ Filter Architecture:
Proper sound system design, implementation and alignment
can avoid a host of problems in system response, and this should always
be the first line of pursuit in sound reinforcement. When all possible measures
in these areas have been taken, however, there are usually some problems
that remain. Equalization is a primary tool for dealing with such problems.
Tuning a modern sound system with equalization is a complex task breaking
down to a few basic needs: subjective shaping of the system frequency
response, compensating for air attenuation and correcting for some anomalies
resulting from interactions between loudspeakers or between loudspeakers
and the acoustical environment. (This last category would include low-frequency
buildup, for example.) But there are fundamental differences in character
between some of these needs, which define a requirement for different
tools to do the jobs appropriately. Failing to account for these distinctions
can result in severe degradation of system phase response, with corresponding
reductions in intelligibility and clarity of the sound.
Meyer Sound's Galileo 616 Composite EQ filter architecture is intended
to address this issue and provide the most potent equalization system
available in any current digital loudspeaker management system, while
keeping phase shift to the lowest amount practically attainable. |
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| Air Absorption Compensation:
As sound waves travel long distances through air, high frequencies are absorbed,
a fact important to consider when setting up high-powered loudspeakers for
a long-throw application. But the effect of air absorption on sound is complex
to describe, as it depends on a number of factors, including distance, temperature,
humidity and altitude. |
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MEYER SOUND GALILEO 616
CONTROL SOFTWARE |
Intuitive Interface:
With all the features and power offered by Galileo 616, giving the user
a comprehensive, intuitive way to control them is paramount. Meyer Sound’s
Compass software fulfills this requirement. Running under either the Macintosh
or Windows operating system, Compass provides a graphical user interface
that is the result of years of experience optimizing complex systems.
Compass’ System Map lets users see signal flow at a glance. The
unique filter display shows and allows direct editing of the composite
response created by the CP-10 and TruShaping filters. Filter parameters
can be edited graphically or by direct text or numeric entry. Seeing the
frequency shaping curve is not the full story, however, so Compass’
filter display also shows the composite phase response.
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| Presets for Every Size System:
A large library of presets is included for systems ranging
from two small Meyer Sound loudspeakers all the way up to complex, multi-zone
systems built around M Series line array products. No more building processing
chains one block at a time; Galileo users can get right to the starting
line and make modifications as needed from there. |
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The
Bottom Line.........
Audio professionals take their jobs seriously and demand equipment that
can stand up to the high standards they require and the intense demands
they experience. After 25 years of servicing the needs of professionals,
Meyer Sound has proven itself just as serious about making equipment that
satisfies their needs.
With the Galileo system, Meyer Sound moves fully into the age of digital
audio and shows, once again, why we provide “A Great Performance
in Every Box.” |
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| Downloads
& Links: |
User
Guide |
Brochure |
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| (5.7Mb, pdf) |
(780kb, pdf) |
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