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Acoustics & Audio Technology News

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Description: GlobalSpec's Acoustics & Audio Technology free eNewsletter covers the field of sound recording, sound reproduction, and sound abatement. The components, materials, and technologies used to generate, manipulate, and measure sound in mobile telecommunications and other devices, and the applications of these components are this free email publication's primary focus.
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GlobalSpec: DirectU2 Acoustics & Audio Technology
January 19, 2009
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Industry Trends & Events . . . Forward to a Friend Forward to a Friend
Sensing Sniper Shots via Sound

Sensing Sniper Shots via Sound Acoustic signatures have been successfully used to detect the source of sniper gunfire for over three years in Iraq and Afghanistan. To date, over 1,000 devices have already been deployed by the U.S. to detect 95% of bullets fired within 30 m of the sensors. Now the same technology is being fine-tuned to fabricate an airborne version for helicopters. It's expected to be operational in 2009.

In operation, a microphone array detects the supersonic shock wave of a bullet and thereby the angle to the shooter. From the differential between the shock wave and the muzzle blast, algorithms then determine direction, elevation, and range in <1.5 sec. Data is displayed on an LED screen and simultaneously announced via a computerized voice.

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• Aerospace Technology
• Appliance Technology
• Automotive Technology
• Defense & Security               Technology

Spotlight On . . .
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Acoustical Enclosures
ArtUSA Noise Control Products, Inc.

Acoustical Enclosures We offer a wide range of acoustical enclosures and materials for sound reduction and control. We knock out noise.

We call this ...  Full Service Noise Control. Full service noise control may start with a phone call, e-mail, fax, or sales visit, but it always ends with a noise problem solved and a client satisfied.

AcoustiLock ACL 16 Acoustic Enclosure
Noren Products, Inc.

AcoustiLock ACL 16 Acoustic Enclosure •  Designed for pro-audio/video professional recording studios, home studios, home entertainment systems, and the office
•  1600 W of waste heat removal
•  Rack mount capacity of 16 u for electronic equipment up to 34 ft deep
•  Reduces equipment noise by 99% — from 71 dBA down to 33 dBA
Learn more about Noren Products, Inc.

Speakers & Amplifiers . . .
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Almost Face-to-Face Voice Quality

Almost Face-to-Face Voice Quality Anyone who has gone through multiple iterations of using various Bluetooth headsets and/or hands-free devices knows the frustration of products that don't perform their intended design functions. Steps toward solving that problem approach face-to-face voice quality in a firmware-upgradable Bluetooth headset and a hands-free unit by suppressing noise plus canceling wind and echoes. The headset's intelligent voice operator also announces the caller's ID and features voice instructions for pairing.

Guerilla Marketing via Directional Sound

Guerilla Marketing via Directional Sound Using ultrasonic sound waves with frequencies above 20,000 Hz, directional audio spotlights have been delivering marketing messages to people who enter the finite boundaries of the sound beam. An outdoor campaign for French winemaker Remy Martin recently used the technique to deliver messages to pedestrians in Atlanta, Chicago, Los Angeles, and New York City. Pedestrians entering the 2 to 3 ft diameter beam hear the sound, but outside the beam, dB levels drop 90%.

Acoustic Materials . . .
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Shush! Patients Sleeping

Shush! Patients Sleeping Hospital noise levels are not usually compatible with patients getting much needed rest. But fortunately that trend is changing. In fact, at Regions Hospital, the next sound control measures will be installing rubber floors and ceiling tiles that absorb sound. It all started with the use of a Yacker Tracker® to put a stop to excessive noise. The traffic-light-like device lights up red at unacceptable noise levels and stays green when it's quiet.

Insulating Homes from Aircraft Noise

Insulating Homes from Aircraft Noise Shortly, an engineering firm will be commencing design work in a pilot program to insulate homes from excessive noise of jets taking off and landing. Highly insulated doors and windows plus renovated ventilation systems will be utilized in the initial two-year project on 10 to 20 homes. Eventually some 360 residences in Great Falls, MT may be spared from the boisterous acoustic intrusions. The U.S. government is slated to pick up 95% of the costs, which could total $30,000/home.

Accent On . . .
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5.7 in. Surface Acoustic Wave Touch
Screen Release

Densitron Corp.

5.7 in. Surface Acoustic Wave Touch Screen Release Densitron Corporation breaks the 6 in. touch screen barrier with the introduction of their 5.7 in. Surface Acoustic Wave (SAW) Touch Screen into North American Markets. Industries such as medical equipment and industrial instrument manufactures are looking toward touch screens to enhance the user experience of their products.

New Series of Acoustic Sensors

PCB Piezotronics Inc.

New Series of Acoustic Sensors PCB's acoustic sensors facilitate the types of precise and reliable sound measurements required of today's refined cabin interiors, as well as resilience against external inclement weather conditions and harsh underhood environments. All array models include a TEDS-compatible option, allowing for high channel counts and greater traceability, as well as conformance with the IEEE 1451.1 standard.

Signal Measurement & Processing . . .
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How to Use ADCs to Optimize
DAQ at Low Power

How to Use ADCs to Optimize DAQ at Low Power This how-to article from Embedded.com addresses the design challenges involved with sampling analog signals at billions of cycles/sec. Here, guidelines are described for utilizing National's gigasample analog-to-digital converters (ADCs) for high-performance data acquisition (DAQ) at low power. The discussion introduces new ADC features for interleaving and covers input signal conditioning, gain/phase matching, and more.

Simplifying Signal Conditioning

Simplifying Signal Conditioning Designed for high-voltage industrial and instrumentation equipment, one component — a level-translating analog-to-digital (ADC) driver — attenuates, drives, and shifts levels of low-voltage ADCs. Systems that utilize the driver require fewer components and minimize board space by simplifying signal conditioning in data acquisition, data logging, and other equipment. The ADC driver is particularly suitable for higher-speed 16-bit SAR (successive approximation) converters.

Mobile Telecommunications . . .
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Multiple Radios Maximize Connectivity

Multiple Radios Maximize Connectivity One single cell phone that operates on multiple bands may in reality contain seven or more radios: for Bluetooth, GPS (global positioning systems), 3G cellular, Wi-Fi, WiMax, and others. The solution for the future appears to be "ad hoc device-to-device communications." Here, all radio functions are built into one module using a low-power, software-defined architecture, a concept being recently developed by multiple research projects, as EDN reports.

Surveying Traffic for Safety

Surveying Traffic for Safety Thanks to communication technology and machine vision, an automated traffic surveillance system that can measure speed, height, and distance between vehicles is expected to give authorities in Finland, France, and Germany the ultimate upper hand in enforcing traffic laws. When perfected, the system will deliver traffic data directly to terminals in police vehicles. RFID technology may also be employed to identify electronic license tags.

Focus On . . .
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Acoustical Foam — Polyurethane
IES2000

Acoustical Foam — Polyurethane IES-2000, Inc. has developed various surface treatments to protect the integrity of the foam from these elements. Acousti-Foams can be purchased in rolls or sheets, and can be die cut or fabricated to customer specifications. They are easily cut with a knife, saw, or scissors.

Models 765M25 and 765M27 Acoustic Sensors
Columbia Research Laboratories

Models 765M25 and 765M27 Acoustic Sensors Columbia's models 765M25 and 765M27 are high intensity acoustic sensors (microphones) designed for measurement of gas-borne sound in frequency range of 100 Hz to 30 KHz in industrial applications requiring operation up to +500 F. These devices are constructed for use in corrosive environments, which are compatible with 316 stainless steel diaphragm.

Careers & Commentary . . .
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Adopting Industry Standards Faster While Preserving IP Rights

Adopting Industry Standards Faster While Preserving IP Rights In a collaborative effort, the IEEE Standards Association and Via Licensing Corp. will be fostering patent pools (patent licensing programs) for IEEE standards-based technologies. The effort will bring together parties who own patents and streamline the licensing of individual's Intellectual Property rights. Licensors in the pool set a single royalty rate for all patents in the pool, making it easier for licensees to obtain licenses for the technology, thereby making the process less costly and less prone to litigation. Via is slated to administer the program.

Diversions . . .
Brain Scans See What You Saw

Brain Scans See What You Saw By analyzing brain scans, Japanese researchers have reproduced images of what test subjects actually saw. To accomplish this they used a computer program, which they calibrated by scanning volunteers as they looked at 400 black, white, and gray images. The scientists were able to reproduce identifiable alphabet letters and geometric images, although more blurry than the originals. Eventually it may be possible for people to communicate through the brain's visual cortex just by imagining.

Share Your Thoughts . . .
About This Month's Topic

About This Month's Topic Lamenting Louder-Than-Ever Lives

Do you think engineers, corporations, and government agencies should be doing more to quell the ever-increasing environmental noise? Suggestions?


Join the discussion...


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January 19, 2009 - Volume 4 Issue 1
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Archives
Past Issues of this eNewsletter
Volume 9 - Issue 2 - 03/17/2014
Noise Datalogger for Environmental Studies and Outdoors Applications; Join Us for Our Educational Webinars; PUI Piezo Benders ; Custom Built Transformers; Low Inrush Current Toroidal Transformers and Isolation Stations; Quick and Reliable High Quality Cable and Wire!
Volume 9 - Issue 1 - 01/20/2014
Noise and Vibration = Product Quality; Newly Released Products for 2014; Vibration/Temperature Monitoring for Industrial Machinery; HALT and HASS Testing for Product Reliability; Complete Triaxial Monitoring Solutions; Noise and Vibration Analyzer - OR35
Volume 8 - Issue 6 - 11/18/2013
New USB Triaxial Vibration Measurement System; Noise and Vibration = Product Quality; Records Sound Levels and Displays Frequency Spectrum; Available - PUI Audio AW-10 and AW-15 Sirens; The Next Generation Acoustical Material is Here; Piezo Electric, Sound Electronics, Audio Signals ; Newly Released Products for 2014; Remotely Monitor Pressure and Room Condition
Volume 8 - Issue 5 - 09/16/2013
Audio Transformers; EMI/RFI Shielding; Watch Acoustiblok's Educational Soundproofing Installation Video; Acoustic Doors and Windows; Studio 54 Cleanable Acoustical Panels; Records Sound Levels and Displays Frequency Spectrum; Alarms Can't Fail in Critical Applications; ROHM Semiconductor USB/MP3 Audio Media Decoder
Volume 8 - Issue 4 - 07/15/2013
Acoustical Room Kits by Acoustical Solutions; SMD Molded High Current Power Inductors; Audio Design Workshop Live Webcast from AES Helsinki; Nondestructive Testing Services/Industrial Sector; Models 765M25 and 765M27 Acoustic Sensors; Rugged, Dependable, Shielded SMD Power Inductors; ROHM Semiconductor USB/MP3 Audio Media Decoder
Volume 8 - Issue 3 - 05/20/2013
Custom Magnetics for Acoustics and Audio; QB 2 a Technology for Personal Quiet Zone; Piezo Motor Stage / Ultrasonic PiezoMotor; Complete Testing of ASIO PC Audio Interfaces; CKE Supression Devices; Overly Sound Rated Doors Ready for Quick Shipment; PUI Audio Electret Condenser Microphones
Volume 8 - Issue 2 - 03/18/2013
The Active Noise Reduction Dev Kit 'Enabler Edition'; Piezoelectric/Force Balance Accelerometers; Dual Winding Shielded SMD Power Inductors; Digital Hydrometers and Density Meters; Complete Solution for Greener Acoustics;
Volume 8 - Issue 1 - 01/21/2013
Noise Reduction Trim; Best Single Axis in Seismic Accelerometer; Measure Vibration, Ultrasound, and Temperature Simultaneously; Complete Testing of ASIO PC Audio Interfaces; Ride the Wave with Whisperwave
Volume 7 - Issue 6 - 11/19/2012
APx511 Hearing Instrument Analyzer; Quiet Bubble Technology; Rugged, Highly Accurate Force Balance Accelerometers; X-MET5100 Handheld XRF Analyzer for Fast Grade ID; 1/N Octave Analysis; Unleash Your Creativity with WhisperWave Baffles; Piezo Electric, Sound Electronics, Audio Signals ; Star Ceilings 101 - How To's; HALT and HASS Testing for Product Reliability
Volume 7 - Issue 5 - 09/17/2012
No-compromise Smartphone Audio Test; APTIV Black Film Delivers in Acoustic Speakers; Custom Air Core Inductor Coils; SMD Molded High Current Power Inductors; Adding Art to Acoustical Treatments; Nondestructive Testing Services/Industrial Sector
Volume 7 - Issue 4 - 07/16/2012
Quiet Bubble Technology; PUI Audio AW-10 and AW-15 Sirens; Masterys IP+ (10 to 80 kVA) Tailor-made to Withstand Harsh Environments; Piezo Electric, Sound Electronics, Audio Signals; The World Standard in Audio Test
Volume 7 - Issue 3 - 05/21/2012
Quiet Bubble Technology; We Have All Your Test Equipment Needs; New Model 831 Reverberation Firmware; Models 765M25 and 765M27 Acoustic Sensors
Volume 7 - Issue 2 - 03/19/2012
New Model 831 Reverberation Firmware; We Have All Your Test Equipment Needs; PUI Audio AW-10 and AW-15 Sirens; Custom Sound-proofing and Acoustic Materials; Piezo Electric, Sound Electronics, Audio Signals; Advanced Field Vibration Analyzers
Volume 7 - Issue 1 - 01/16/2012
APTIV Black Film Delivers in Acoustic Speakers; Acoustic Emission; Advanced Field Vibration Analyzers; New Industrial Buyer's Guide; Custom Sound-proofing and Acoustic Materials
Volume 6 - Issue 12 - 12/19/2011
APTIV Black Film Delivers in Acoustic Speakers; Acoustic Emission; Overall Acoustic Level; Custom Sound-proofing and Acoustic Materials; EEC Magnets and Assemblies ITAR/DFARS Compliant; Waterproof Equipment Cases from Dayang Enclosures
Volume 6 - Issue 11 - 11/21/2011
APTIV Black Film Delivers in Acoustic Speakers; New Model 831 Reverberation Firmware; AW-10 and AW-15 Sirens; Ultra-low Capacitance Diode Arrays for ESD Protection; PolyMetallix Nanoscale Zero Valent Iron
Volume 6 - Issue 10 - 10/17/2011
New Model 831 Reverberation Firmware; Overall Acoustic Level; BK Precision 735 Sound Level Meter, Logging; Fluke Ti32 60Hz Thermal Imager
Volume 6 - Issue 9 - 09/19/2011
Acoustic and Impulse Cleaning Systems; Acoustical Materials - Polyurethane Foam; Miniature Speaker Series Provides Broad Spectrum of Sounds; Acoustic Emission; Models 765M25 and 765M27 Acoustic Sensors; LP-13 Shake Absorber - an Invaluable Tool to Sound Engineering; TFA9881/2 3.4 W Audio Amplifiers
Volume 6 - Issue 8 - 08/15/2011
Analyze Audio Playback Devices Faster; Extech 407730 Digital Sound Meter; Overall Acoustic Level; 735 Sound Level Meter, Logging
Volume 6 - Issue 7 - 07/18/2011
Overall Acoustic Level; New Model 831 Reverberation Firmware; BK Precision 735 Sound Level Meter, Logging; 5.7 in. Surface Acoustic Wave Touch Screen Release
Volume 6 - Issue 6 - 06/20/2011
Nor 848 Acoustic Camera; Acoustic Emission; CSS-05 Series Buzzers; Custom Sound-proofing and Acoustic Materials; ECHO Digital Intercom and Communication Systems; Driver Units - DKU-75F
Volume 6 - Issue 5 - 05/16/2011
Audio Transformers; 407730 Digital Sound Meter; Cost-effective Large Channel Acoustic Measurements; PA-Systems - DKU 100N;
Volume 6 - Issue 4 - 04/18/2011
Custom Sound-proofing and Acoustic Materials; Acoustic Emission; Noise and Vibration Analyzer - Ultraportable OR34; Sound Barrier Walls, Fences, and Enclosures; Tensility's Slim Line Audio Cables for Applications with Limited Space; APTIV Black Film Delivers in Acoustic Speakers
Volume 6 - Issue 3 - 03/21/2011
Simple Solutions for Complex Audio Problems; Soundproofing Breakthrough; New Model 831 Reverberation Firmware; Digital Sound Meter
Volume 6 - Issue 2 - 02/21/2011
Superior Analog Audio Noise Reduction; AS9100 Certified Precision Metal Fabricator; New Model 831 Reverberation Firmware; Knowles Acoustics' MR Series Features a Waterproof Bellows Assembly; Overall Acoustic Level
Volume 6 - Issue 1 - 01/17/2011
Low-cost USA Made Military Headset; Models 765M25 and 765M27 Acoustic Sensors; Magnetic-free Harsh Environment Piezo Speaker; APTIV Black Film Delivers in Acoustic Speakers
Volume 5 - Issue 12 - 12/20/2010
Got an Industrial Noise Problem?; Acoustic Solutions for Industrial Applications; Custom Sound-proofing and Acoustic Materials; Acoustic Emission; Slim Line Audio Cables from Tensility; Overall Acoustic Level
Volume 5 - Issue 11 - 11/15/2010
Records Sound Levels and Displays Frequency Spectrum; Acoustical Foam - Polyurethane; 5.7 in. Surface Acoustic Wave Touch Screen Release; APTIV Black Film Delivers in Acoustic Speakers; BK Precision 735 Sound Level Meter, Logging; Sound Level Meters
Volume 5 - Issue 10 - 10/18/2010
Control Sound and Eliminate Noise; Remote / Stand Alone Noise and Vibration Analysis; Acoustic Emission; AD8271 Precision Programmable-Gain Difference Amplifier
Volume 5 - Issue 9 - 09/20/2010
Industrial All Weather Sound Panels; Models 765M25 and 765M27 Acoustic Sensors; Sound Level Meters from Larson Davis; BK Precision 735 Sound Level Meter, Logging; Custom Sound-proofing and Acoustic Materials
Volume 5 - Issue 8 - 08/16/2010
Reduce Noise and Block Sound; Introduction to Acoustics Simulation Tutorial CD - Complimentary Copies Available; Multi-Layer Piezo Speakers from PUI Audio; Industrial Silencers and Sound Attenuators
Volume 5 - Issue 7 - 07/19/2010
Got an Industrial Noise Problem?; APTIV Black Film Delivers in Acoustic Speakers; Complimentary Acoustics Simulation Kit CD; Overall Acoustic Level; Acoustic Emission; Acoustical Curtain Composites
Volume 5 - Issue 6 - 06/21/2010
Custom Sound-proofing and Acoustic Materials; Digital Sound Meter; ROHM Audio IC - Ground Isolation Amplifier; Noise Dose Meter; Line Array-PA System Remote Alignment Tool; BK Precision 735 Sound Level Meter, Logging
Volume 5 - Issue 5 - 05/17/2010
Audio Transformers; Reduce Noise and Block Sound; Boiler Tube Cleaning with Impulse Technology Webinar; Sound Level Meters from Larson Davis; Noise Control with Perforated Metal Components; NaviSound 400 Hydrographic Echosounders; ECHO Digital Intercom and Communication Systems
Volume 5 - Issue 4 - 04/19/2010
Complimentary Acoustics Simulation Kit CD; Models 765M25 and 765M27 Acoustic Sensors; APTIV Black Film Delivers in Acoustic Speakers; PUI Audio Surface Mount Speakers Now; Noise Reduction and Heat Removal Equipment;
Volume 5 - Issue 3 - 03/15/2010
Specializing in Inrush Current Limiting Thermistors; Audio Product and Device Testing Services; Acoustical Enclosures; S-Cube: Reduces Acoustic Noise; Sound Level Meters; Overall Acoustic Level; Precision 735 Sound Level Meter, Logging
Volume 5 - Issue 2 - 02/15/2010
Complimentary Acoustics Simulation Kit CD; Digital Sound Meter; PUI Audio Surface Mount Speakers; Acoustic Emission; Custom Sound-proofing and Acoustic Materials; Acoustical Foam - Polyurethane
Volume 5 - Issue 1 - 01/18/2010
New PolyPhon Acoustical Panels; Adhesives and Assembly Equipment for Loudspeakers; S-Fan: Hot Swap Active Silencer; 5.7 in. Surface Acoustic Wave Touch Screen Release; Battery-Powered Fiber Optic Microphone; PCB Series Alarms Provide Optimum Audio; Models 765M25 and 765M27 Acoustic Sensors; Piezo Motor Stage / Ultrasonic PiezoMotor
Volume 4 - Issue 12 - 12/21/2009
Complimentary Online Resources with MyCatalog; New Acoustic Imaging System Lens Forms; Overall Acoustic Level; BK Precision 735 Sound Level Meter, Logging; Texas Instrument's TPA6140A2 Class G Audio Amplifier; Noise Reduction and Heat Removal Equipment
Volume 4 - Issue 11 - 11/16/2009
Never Sacrifice Form for Function; MEMS Module; All Optical Communications Earplug; Noise Control Enclosures; Heat Removal and Noise Reduction Cabinets; Certifications
Volume 4 - Issue 10 - 10/19/2009
Reduce Noise and Block Sound; S-Cube Reduces Product Acoustic Noise; Custom Design for Aesthetics to Functionality; APTIV Black Film Delivers in Acoustic Speakers; Virtual.Lab Acoustics; Models 765M25 and 765M27 Acoustic Sensors; Nichicon Audio Capacitors; Custom Sound-proofing and Acoustic Materials
Volume 4 - Issue 9 - 09/21/2009
BK Precision 735 Sound Level Meter, logging; Overall Acoustic Level; Design Meets Noise and Reverberation Control; Intrinsically Safe Communication Earplug; New Series of Acoustic Sensors; Extech 407730 Digital Sound Meter
Volume 4 - Issue 8 - 08/17/2009
The Clear Choice in Sound Diffusion; Models 765M25 and 765M27 Acoustic Sensors; PolySorpt Moisture Resistant Acoustical Panels; National Semiconductor's LM48100Q Amplifier; Industrial Silencers and Sound Attenuators; Noise Reduction and Heat Removal Equipment
Volume 4 - Issue 7 - 07/20/2009
Acoustic Solutions for Industrial Applications; High-temperature Noise Resolved Combining Acoustiblok and Thermablok; Overall Acoustic Level; APTIV - VICTREX PEEK Film Technology Heats Up the Loudspeaker Industry; Virtual.Lab Acoustics; Acoustics Module
Volume 4 - Issue 6 - 06/15/2009
Custom Design for Aesthetics to Functionality; Got an Industrial Noise Problem?; All Optical Communications Earplug; Acoustic Emission; Case Innovation; Series MIN-T Audible and Audible Strobe
Volume 4 - Issue 5 - 05/18/2009
The Art of Diffusion Clarifies Speech; Revolutionary Sound Masking and Paging System; Virtual.Lab Acoustics; Acoustics Module; Texas Instruments AIC3254; Custom Sound-proofing and Acoustic Materials
Volume 4 - Issue 4 - 04/20/2009
Piezo Motor Stage / Ultrasonic PiezoMotor; 5.7 in. Surface Acoustic Wave Touch Screen Release; National Semiconductor LMV1088/89 Audio Amps; Acoustical Curtain Composites; 60 Degree Molded RJ45; Custom-designed Acoustical Enclosures
Volume 4 - Issue 3 - 03/16/2009
Audio Transformers; New 21st Century Sound Diffusers for Critical Listening Environments; Heat Removal and Noise Reduction Cabinets; NaviSound 400 Hydrographic Echosounders; Acoustical Materials - Polyurethane Foam; Audio Power Transformers; National's Audio Solutions; Audio Jacks and Plugs
Volume 4 - Issue 2 - 02/16/2009
Noise Reduction and Heat Removal Equipment; Overall Acoustic Level; ECHO Digital Intercom and Communication Systems; ARIS - Acoustic Resonance Inspection System; High Intensity Acoustic Sensor, Model 2180C; SigQC
Volume 4 - Issue 1 - 01/19/2009
Acoustical Enclosures; AcoustiLock ACL 16 Acoustic Enclosure; 5.7 Surface Acoustic Wave Touch Screen Release; New Series of Acoustic Sensors; Acoustical Foam - Polyurethane; Models 765M25 and 765M27 Acoustic Sensors
Volume 3 - Issue 12 - 12/15/2008
Sonolator - Ultrasonic Homogenizing Device; Industrial Silencers and Sound Attenuators; ((((Noisy Environments?)))); Acoustical Curtain Composites; ExitPoint Directional Sounder with Voice Messaging; Miniature General Purpose Speakers
Volume 3 - Issue 11 - 11/17/2008
New Acoustical Wall Panel for Critical Listening Environments; Streamline Your Design Process with 3D CAD Connector Models; The Noise Police Acoustical Products; ECHO Digital Intercom and Communication Systems; Measurement Microphone Kit; Measurement Microphone Kit
Volume 3 - Issue 10 - 10/20/2008
Power-by-Light Fiber Optic linked Communication Earplug; Audio Transformers 300Hz-100kHz Mil-T-27E; All Weather Panels; Qylite Automotive Acoustic Foam Technology; High Temperature Acoustic Measurement System; ARIS - Acoustic Resonance Inspection System; Overall Acoustic Level; High Intensity Acoustic Sensor, Model 2180C
Volume 3 - Issue 9 - 09/15/2008
Wire and Cable Performance Testing; New Headsets for Optically Powered, Wireless Earplugs; New Acoustical Wall Panel for Critical Listening Environments; Audio Jacks and Plugs; Sound Level Meters; NaviSound 400 Hydrographic Echosounders; Piezo Audio Transducers and Buzzers; Audible Signaling Device - 300GC
Volume 3 - Issue 8 - 08/18/2008
((((Noisy Environments?)))); Wire and Cable Performance Testing; New Headsets for Optically Powered, Wireless Earplugs; National's Audio Solutions; Industrial Silencers and Sound Attenuators; Piezo Electric Buzzers; Acoustical Curtain Composites; AcoustiLock ACL 16 Acoustic Enclosure
Volume 3 - Issue 7 - 07/21/2008
Piezo Motor Stage / Ultrasonic PiezoMotor; Audio Power Transformers; Reliable Acoustic Measurement Products; Silicon Microphone, Surface Mount Microphones; ExitPoint Directional Sounder with Voice Messaging; Speaker Parts
Volume 3 - Issue 6 - 06/16/2008
NaviSound 400 Hydrographic Echosounders; DT-8852 Sound Level Meter; Setra Pressure Transducer Answer for Manufacturer; High Intensity Acoustic Sensor, Model 2180C; Battery-Powered Fiber Optic Microphone; SelecTone Plant Wide Warning and PA Systems
Volume 3 - Issue 5 - 05/19/2008
One 3 mm Layer Reduces More Sound Than 12 in. of Concrete; Acoustical Foam - Polyurethane; Audio Jacks and Plugs; Sound Level Meters; Miniature General Purpose Speakers
Volume 3 - Issue 4 - 04/21/2008
New 21st Century Sound Diffusers for Critical Listening Environments; Introducing Tri MAP's Newest Configuration!; VA One : The ONE Vibro-Acoustic Simulation Software; Piezo Motor Stage / Ultrasonic PiezoMotor; ExitPoint Directional Sounder with Voice Messaging; Speakers; Industrial Silencers and Sound Attenuators; Acoustical Curtain Composites
Volume 3 - Issue 3 - 03/17/2008
Acoustics Simulation Tutorial CD; The Noise Police Acoustical Products; Piezo Electric Buzzers; KSONIK I / II / II Ultrasonic Level Transmitters; Silicon Microphone, Surface Mount Microphones; Fibersound Microphone Drivers
Volume 3 - Issue 2 - 02/18/2008
New 21st Century Sound Diffusers for Critical Listening Environments; Reliable Acoustic Measurement Products; Sound and Noise Measurement Solutions; Condenser Microphone — AMB-O60G38-CC; Audio Unlimited™ 900MHz Wireless Speakers; Speaker Parts; Audio/Video Cable Reel Catalog from Hannay Reels; Audio Power Transformers
Volume 3 - Issue 1 - 01/21/2008
PosiSound Silicon Microphone Productline Introduction by Memstech, Operational TPA, Atmel: Stereo Audio Digital-to-Analog Converter, Acoustical Enclosures, AcoustiLock ACL 16 Acoustic Enclosure, Piezo Audio Transducers and Buzzers
Volume 2 - Issue 12 - 12/17/2007
PosiSound Silicon Microphone Productline Introduction by Memstech; HIGH SPL Speaker; Condenser Microphone; Uamplified Speakers for Intercom Systems; Triad SP Series Audio Transformers; SelecTone® Audible Signaling Device — 300GC
Volume 2 - Issue 11 - 11/19/2007
Fiber Optic Microphone System; APTIV — VICTREX® PEEK™ Film Technology Heats Up the Loudspeaker Industry; Mylar Speakers; Model ITC-6128 HF Test Projector/Hydrophone; SeaBat 8124 Multibeam Hydrographic Sonar; Model 6829 Spherical Transducer; DEWE-3108; Atlona Dual Banana Plug (Speaker Connector)
Volume 2 - Issue 10 - 10/15/2007
2700 Series Dual Domain Audio Analyzer, SAW (Surface Acoustic Wave) Scale, Noise and Vibration Analyzer - OR35, EC 6070 Hydrophone Audio Amplifier, Polyether Foam for Sound Dampening, Flex-Tone Series Audible Products
Volume 2 - Issue 9 - 09/17/2007
Triad SP Series Audio Transformers 300Hz-100kHz Mil-T-27E, se Control Enclosures for Blower Packages, Panel Mount Sounder/Speaker, Software, Design & Analysis, and Product Software, JP005 Series Audio Jack, Cable HDMI M/M, Atlona Dual Banana Plug (Speaker Connector)
Volume 2 - Issue 8 - 08/20/2007
Acoustax Noise Barriers, Simulate your Product's Real-World Acoustic Performance, Speakers, Audio Jacks and Plugs, Fiber Optic Digital Audio Cable, Mylar Speakers, EC 6070 Hydrophone Audio Amplifier
Volume 2 - Issue 7 - 07/16/2007
Battery Powered Fiber Optic Microphone; MemsTech Pushes the Microphone Industry Ahead; Sound Level Meters and Noise Dosimeters; High Intensity Acoustic Testing; PVC Foam Tape; Audio Products and Accessories
Volume 2 - Issue 6 - 06/18/2007
Piezo Transducer; Spherical Transducer; Acoustic Enclosure; Speakers; Automotive Acoustic Foam Technology; Plant Wide Warning and PA Systems
Volume 2 - Issue 5 - 05/21/2007
Piezo Electric Sounders; Providing Noise Control Solutions for Industrial and Architectural Applications; Digital Sound Meter; Microphone; Underwater Transducer; Cost Effective Sound Level Calibrator
Volume 2 - Issue 4 - 04/16/2007
Mylar Speakers; Pollution Noise Control; Sound Level Meter and Data Logger; SAW (Surface Acoustic Wave) Scale; Polyether Foam for Sound Dampening; Battery Module Dry Cell
Volume 2 - Issue 3 - 03/19/2007
Psychoacoustic Models; Acoustics Transducers; Piezo Audio Transducers and Buzzers; Soundproof Curtains; Sound Power; Shielded Low Leakage Speakers
Volume 2 - Issue 2 - 02/19/2007
Piezo Buzzer; Wall and Ceiling Liner; Audio Jack; Acoustic Foam Wedges; Custom Speakers; Indoor Controller
Volume 2 - Issue 1 - 01/15/2007
Mylar Speakers; Acoustic Pressure Sensors; Acoustic Emission Transducers; Exterior Acoustical Absorber; Acoustic Sensors; High Power Transducer
Volume 1 - Issue 1 - 12/18/2006
Foam for Sound Absorption; Small Series Linear Amplifiers; Acoustical Foam; Audio Jacks and Plugs; Shorter Design Cycles; Electromotive Receiver