Atlas ASP-MG24, ASP-MG24TDB Brochure & Specs
ASP-MG24
Sound Masking Generator / Speaker Processor
ASP-MG24 / ASP-MG24TDB
• Four White / Pink Noise Generators & 2 Mic / Line Inputs with 4-Channel DSP Processor
• Generator Spectral Purity (±0.1 dB @ 0Hz – 20 kHz)
• Precision Pink Noise Filtering (-3 dB per octave low-pass)
• Extended "Non-Apparent" Repeat Time of Noise (200 Minutes)
• Combined 1⁄3-Octave & Parametric Equalization per Channel
• Selectable High & Low Frequency Shelving Filters per Channel
• High Pass Filter & Low Pass Filter with Variable Frequency & Slope per Channel
• Leveling, Compression, Limiting, & Soft-Gating per Channel for use with Paging Input
• Output Delay, with Distance / Delay Calculation, per Channel
• Independent Matrixes for Channel-To-Channel Mixing
• Variable Noise, Input, and Output Levels with Software Metering
• Thirty Non-Volatile Memory Presets Store / Recall Settings
• Balanced Inputs & Outputs
• Programming Software Included
• No Manual controls on Front Panel, to Prevent Tampering
• Remote Control via USB, RS-232, Ethernet & Accessory Control Panel
• Incorporates AES recommended grounding practices
• UL / ULC Listed External Power Supply
ASP-MG24 represents the latest technology in digital signal processing (DSP) engines for sound masking generator/
equalizers. This model features 4 built-in digital noise generators and two analog inputs specifically suited for paging
input sources. These inputs can be configured for mic or line level.
The ASP-MG24 advances sound masking control to a whole new level while providing the secondary benefit of
loudspeaker processing for the most popular Atlas Sound loudspeaker systems.
The ASP-MG24 is a 1 RU, 6 input x 4 output DSP configurable by a very intuitive set-up GUI. Four inputs are tied
to independent white / pink noise generators with adjustable ramp-up time to allow gradual acclimation to masking
levels. Two additional inputs are available for mic or line sources to allow paging and/or music sources to be blended
with the masking sources to any of the 4 outputs. This 6 x 4 mix matrix provides the following configuration options
for sound masking systems:
1. 1, 2, 3, or 4 Channel Masking
2. Dual Two Channel Masking
3. Single Channel Paging
4. Dual Channel Paging (From Single Page Input Source)
5. 1, 2, 3, or 4 Channel Mixed Paging & Masking
6. Dual Channel Mixed Paging & Masking
Dedicated 1⁄3 octave filter sets are available for each of the 4 generator outputs, 8 band parametric EQ blocks along
with dynamic control is available for each of the two mic/line inputs. Any mix of all 6 inputs may be easily matrixed to
the 4 output DSP blocks for additional parametric equalization, delay, and limiting (if required).
Factoring in all features, a very complex 4-zone sound masking system can be easily configured with 2 external music
or page sources.
For loudspeaker control functionality, the ASP-MG24 may be configured in 2 input x 4 output mode for stereo full
range. Other configurations include full range plus sub operation with Atlas Sound FAP Series ceiling speakers, SM
Series surface mount speakers, or AH Series stadium horns for complete control of crossover types, equalization,
delay, and dynamic control.
Computer interface is simplified by USB or RS-232 connection (no awkward USB to Serial adaptors required!).
External UL / ULC Listed international voltage power supply is included.
ASP-MG24TDB
ASP-MT24TDB incorporates all the features of the standard model with the addition of time / date level control of
all 4 masking inputs for holiday and weekend scheduling. This powerful scheduling tool insures maximum speech
privacy in facilities that may be more or less densely occupied during various times of the day or days of the week.
Ethernet control functionality is also incorporated into this model to provide control of multiple units (up to 32) via a
standard network switch and also allows remote access and monitoring via LAN.
Model Computer
ASP-MG24
ASP-MG24TDB
Interface
USB & RS-232
USB, RS-232,
& Ethernet
Processor Dynamic
32-bit
(40-bit extended)
32-bit
(40-bit extended)
Range
115 dB
(unweighted)
115 dB
(unweighted)
Power Supply
115V 20 watts
UL External Power Supply
115V 20 watts
UL External Power Supply
Dimensions
Height: 1 RU (1.75" 44 mm)
Width: 19" (483 mm)
Depth: 8" (203 mm)
Height: 1 RU (1.75" 44 mm)
Width: 19" (483 mm)
Depth: 8" (203 mm)
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AtlasSound.com
Sound Masking Generator / Speaker Processor
ASP-MG24 Main Screen
Nine
ASP-MG24 Equalizer Screen
Sound Masking Design Assistance from Atlas Sound
Need assistance in specifying a sound masking system?
Atlas Sound now provides support services to assist dealers in product selection and masking speaker layout.
Contact tech Support for details.
Did You Know...
Consultant on Sound Masking for Atlas Sound – Dr. Robert Chanaud
Dr. Chanaud received his B.S. in Engineering from the U.S. Coast Guard
Academy, his M.S. in Engineering from the University of California, and his
Ph.D. in Engineering from Purdue University. His areas of specialization are
acoustics and fluid mechanics. He has been active in the field of acoustics
since 1958 and has extensive experience in office acoustics. As a faculty
member, he has taught both undergraduate and graduate acoustics at the
University of Colorado, the University of Michigan, Brigham Young University,
and Purdue University. He has been a consultant on noise problems to the
IBM Corporation, the Environmental Protection Agency, and the AmericanStandard Corporation. He has authored several masking software programs
including SCOPE, which provides detailed speech privacy analyses of
planned open and closed offices under a variety of conditions. The program
also is used to evaluate the privacy of existing offices and is used to provide
the optimum background sound. As a consultant to Atlas Sound, he has been
instrumental in developing new products for sound masking applications
including the ASP-MG24.
Dr. Chanaud owns a number of patents and has authored many technical
articles on office acoustics and masking sound systems. You can find many of these articles as well as information on
Chanaud's soon to be published book on Sound Masking at AtlasSound.com
Steve Brooks
Tech Support Manager
800.876.3333 x1374
800.876.3333
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