Entries by Zarina

See Us at AES in LA Oct 2014

We will be exhibiting and presenting a paper at the 137th AES which will be held at the Los Angeles Convention Center, Los Angeles, CA on Oct 9-12, 2014. At our booth (#1525) we will be demonstrating the latest release of the SoundCheck software, as well as showcasing our entire audio test hardware lineup. We […]

SoundCheck and Electroacoustic Training Oct 2014

We have a great training line-up in Santa Clara on October 6-8, 2014! Our popular 2-day SoundCheck training course (Oct 7-8) is partnered with a one-day ‘Introduction to Electroacoustics’ course (Oct 6), taught by Chris Struck. Attendees may attend all 3 days, or just the electroacoustics or SoundCheck training. The 2 day SoundCheck course covers […]

New Bluetooth Interface

The New BTC-4148 enables Bluetooth devices to be accurately tested in SoundCheck® by offering full control over the Bluetooth connection. Accurately measuring Bluetooth devices is challenging. The Bluetooth protocol is a dynamic and adaptive system that provides devices with many options and parameters that are normally negotiated and set in an invisible manner. Using typical […]

Rep Profile: Comtree Inc., Canada

Comtree Inc. has distributed Listen’s products Canada for just over a year. The company is headquartered in the Toronto Area with a field sales office in Montreal.  “We are excited to offer Listen products in the Canadian market. Canada has a healthy acoustic industry and a long history of developing talented audio engineers. Over the […]

EN50332 Sequence Update

A revised version of our sequence for Max SPL of headphones to EN-50332 is now available. This incorporates all the changes made in the 2013 revision of the standard. This includes a new sequence for testing Bluetooth and USB headphones to meet the standard’s additional stipulations for testing digital devices. More: EN-50332 Part 1 More: […]

China Tour – June 2014

Listen’s Dan Knighten will be touring major cities in China as part of the 2014 S&V Samford seminar series on ElectroAcoustic Test Solutions for Smartphones/Tablets, Headphones/Earphones & Bluetooth Speakers. This series of half-day seminars will cover measurement techniques and offer tips and tricks for achieving accurate and repeatable production line measurements A new production line […]

SoundCheck ONE Updated and Expanded

SoundCheck ONE, our budget SoundCheck system has been updated and expanded for its release with SoundCheck 13. SoundCheck ONE is essentially a lower cost, simplified, version of SoundCheck coupled with the AmpConnect ISC hardware. SoundCheck ONE offers the capability to test loudspeakers, microphones and headphones within predetermined sequence templates. Although the user interface is the […]

Harmonic Distortion Measurement: The effects of sampling rate and stimulus frequency on the measured harmonic frequency (including THD and Rub & Buzz)

Author: Steve Temme Harmonic distortion measurements can be confusing to interpret, and it’s important to understand the data that you are looking at, particularly the relationship between the stimulus frequency and the measured harmonic frequency. This brief guide explains the relationships between sampling rate, stimulus frequency and measured harmonics for both normalized and conventional harmonic […]

Production Line Smartphone & Tablet Test

We are excited to announce a complete system for testing of smartphones, tablets, and Bluetooth speakers on the production line. Soundcheck, combined with the new GRAS production line acoustic test chamber offers the acoustic isolation needed for these tests combined with the speed, flexibility and performance of SoundCheck. The test chamber is robust and user […]