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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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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Power Supply and Current Monitor
DC Connect
DC Connect enables measurement of current consumption of battery operated and other low voltage devices such as hearing aids
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Single Channel Microphone Power Supply
SoundConnect Microphone Power Supply
SoundConnect is a cost-effective, single-channel microphone power supply for audio test applications.
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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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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.
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2 Channel Microphone Power Supply and Conditioning Amplifier
SoundConnect 2 mic power supply
SoundConnect 2 is a rugged 2-channel USB controlled microphone power supply and conditioning amplifier.
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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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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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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.
