Listen Inc
Listen, Incorporated specializes in PC-based test and measurement systems used for production testing and research and development of electroacoustic products including loudspeakers, microphones, hearing aids, communication headsets, analog and digital telephones, cell phones, and voice over Internet protocol (VoIP) phones.
- (617) 556-4104
- 617-556-4145
- sales@listeninc.com
- 580 Harrison Ave.
Suite 3W
Boston, MA 02118
United States
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Known impedance for use in loudspeaker measurements
Impedance Box
An impedance box is necessary for measuring the impedance of a loudspeaker. Listen Inc.’s impedance box contains a 0.25Ω resistance. This value is suitable for most loudspeakers, but may be easily swapped out for a different value by the user if speakers with a particularly high or low impedance are being tested. It is available with either XLR or 1/4″ balanced connectors. Please specify type of connectors when ordering.
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Overview of features and functionality
SoundCheck Software
SoundCheck is the powerful software that drives our audio test and measurement system.
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Overview of features and functionality
NoiseCheck Software
NoiseCheck is essentially SoundCheck without a stimulus editor, as it is designed for manufacturing the noise made by your product. It is a powerful piece of software, ideal for both R&D and production line acoustic measurements of fans, blowers, motors, gears, bearings, pumps and other electromechanical products.
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Audio Interfaces
RME
RME offers a range of multichannel audio interfaces that work well with SoundCheck. Listen supplies RME interfaces fully tested and pre-calibrated for use with SoundCheck.
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Audio Interfaces
Lynx
Lynx offers a range of audio interfaces that work well with SoundCheck. Listen supplies Lynx interfaces fully tested and pre-calibrated for use with SoundCheck.
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Bluetooth Measurement Interface
BTC-4148
The Portland Tool & Die BTC-4148 is a complete interface for measuring and characterizing Bluetooth audio devices including handsets, headsets, speakers, car kits and other devices with Bluetooth audio input or output.
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For accurate testing of headphones, microphones telephones and loudspeakers
Artificial Mouths, Ears, and Couplers
Listen supplies artificial mouths, ears and ear couplers from Brüel and Kjær, GRAS and more.
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Software-based Electroacoustic Test System
SoundCheck
The SoundCheck®system from Listen includes everything you need to perform audio measurements on a wide range of devices – the software, the audio interface, other test interfaces and accessories, and test sequences. The system is centered around the SoundCheck software. This powerful package controls and communicates with the measurement hardware, and includes all the stimuli, algorithms and analysis functionality needed to develop and run virtually any electroacoustic or audio electronic test. It is paired with hardware ranging from a simple, all-in one audio test box to sophisticated discrete components for a complete test system. In addition to Listen hardware, a range of 3rd party products and test accessories are fully supported within SoundCheck.
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The SoundCheck Amplifier
SCAmp Audio Test Amplifier
SC Amp is the world’s only dedicated audio test amplifier. Specifically designed for the audio test market, it incorporates several features unique to the needs of audio test and measurement, and unnecessary features found in regular audio amplifiers have been eliminated to keep production line operation simple and error-proof.
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Manikins for realistic simulation of the acoustic properties of a human
Head & Torso Simulators
If you need to carry out realistic in-situ measurements of headphones, telephones or hearing aids, you need a Head and Torso Simulator such as the B&K ‘HATS’ – Type 4128D or GRAS’ Kemar to complete your test setup. These manikins have built-in ear and mouth simulators that provide a realistic reproduction of the acoustic properties of an average adult human head and torso. They are commonly used for tests on telephone handsets, headsets, audio conference devices, microphones, headphones, hearing aids and hearing protectors. Please contact your sales engineer or email sales@listeninc.com for more information.
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Measurement Microphones
SCM
The SCM measurement microphone is a robust, free- field microphone designed for the rigorous environment of a production line without compromising the accuracy, precision, and stability required for R&D.
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Microphone Interfaces
MEMS
Listen offers 2 MEMS digital microphone measurement interfaces from Portland Tool & Die, the laboratory-grade DCC-1448 and the low cost PQC-3048 for production line use.
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USB Controlled Audio Test Interface
AudioConnect
AudioConnect is a 2-in, 2-out audio interface specifically designed for audio test and measurement. It offers digital and analog audio in and out, a a 44.1kHz/48kHz sampling rate, USB control, and a power indicator; all other typical soundcard controls that are not used for audio test applications have been eliminated. This makes operation and calibration simple with no room for error.
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USB Controlled High Precision Audio Test Interface
AudioConnect 4×4
AudioConnect 4×4 is a high accuracy 4-in, 4-out audio interface specifically audio test and measurement. It offers digital and analog audio in and out at any user-specified sampling rate up to 200kHz, and a high signal to noise ratio and wide frequency response, making it suitable for the most demanding measurement applications. Controls are simple – a single USB connection and a power indicator – all other typical soundcard controls that are not used for audio test applications have been eliminated to make operation and calibration simple with no room for error. AudioConnect 4×4 is supplied fully calibrated.
