Entries by Zarina

Overcoming Challenges of Measuring Distortion Audibility in Automotive Audio Systems

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Standardized measurement of in-car audio systems remains an ongoing challenge, particularly regarding microphone configuration and placement, test signals, and correlation with perception. Current recommendations from the AES Technical Committee on Automotive Audio (TC-AA) advocate spatial averaging using multi-microphone arrays to improve repeatability. While this method reduces the influence of reflections and standing waves to improve […]

Practical Automotive Measurements – Novi, July 28

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Location: Harman Novi, MI Date & Time: Tuesday, July 28  •  8:45 AM – 3 PM Join us for an engaging and informative day of practical automotive measurements and training In the morning Steve Temme will share the work of the AES Technical Committee on Automotive Audio (TC-AA) and their development of a white paper […]

AES Automotive Conference – Detroit, July 29-31 2026

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Join us in the AES Automotive conference in Detroit for the launch of three innovative new products designed to streamline your automotive acoustic testing. We will be unveiling: Halo 6 Microphone Array: Achieve TC-AA compliant measurements at a fraction of the cost of traditional hardware – and it’s packed with features to make setup faster […]

Distortion Audibility Presentation

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Download the distortion measurement tutorial presented April 30th at the AES Bay Area Chapter Meeting. In this presentation, Steve Temme approaches distortion from a psychoacoustic perspective, explaining how we perceive it, why traditional metrics can fall short, and how methods like Normalized THD better align with human hearing. He also examines the trade-offs introduced by […]

Distortion Measurement Tutorial

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Download the distortion measurement tutorial presented May 28, 2026 at AES Copenhagen. In this tutorial, Steve Temme explains the challenges of measuring distortion including the convolution of linear and non-linear distortion, the variation in measured distortion with signal and level, and the challenges of correlating different types of distortion measurement. He discusses metrics for measuring […]

Frequency Normalized Distortion – A Necessity for Modern Transducers

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Frequency Normalized Distortion, or Normalized THD is a more accurate method for measuring distortion in transducers, and should be used alongside conventional THD measurements. Here’s the background from the creator of the original measurement. Full Article More about Frequency Normalized THD This article examines the limitations of conventional Total Harmonic Distortion (THD) calculations when evaluating […]

Active Noise Cancellation Distortions in Headphones

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Active noise cancellation distortions in headphones are not straightforward to measure. Active Noise Cancellation (ANC)  effectively attenuates external background noises from droning airplane engine noise to everyday annoying environmental sounds. This permits greater enjoyment of music or speech, but at what cost? Like most signal processing, its benefits come with trade-offs such as added electronic noise […]

Innovation Timeline – 30 Years

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Listen’s 30 year history is rich with innovation. We’ve presented and published almost 30 research papers, many of which have driven the  measurement techniques used in our software. As we celebrate our 30th anniversary, we’re proud to share this timeline featuring some of our algorithms, techniques and product highlights.    

Finding the test level in volts to achieve a desired SPL

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This sequence finds the test level (volts) to achieve a desired sound pressure level (dB SPL). The user enters the desired sound pressure level. 1 volt is played through the amplifier which is used to then calculate the appropriate voltage level to obtain the desired Sound pressure level. The sequence then runs a stepped sine […]

SoundCheck 24 Discounted Upgrades!

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For a limited time we are offering deep discounts on a system upgrade to enable you to get up to date with the latest version of SoundCheck. Check out the pricing in the table below. All the modules on your present system will be included. Promotional pricing is valid till August 31st, 2026. When you […]

ABOUT LISTEN INC

Listen is a global leader in audio measurement and analysis, with over 30 years’ experience developing innovative test methods and algorithms. SoundCheck, our powerful software-based audio analyzer, pairs with our test interfaces, precision microphones, and accessories to offer a complete solution for testing loudspeakers, headphones, microphones, smart devices, communication systems, hearing aids, automotive audio, and more. Trusted by engineers worldwide, Listen delivers the accuracy and flexibility essential for modern audio testing, from the R&D lab to the production line.

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