all future in-person / real life events including trade shows, seminars, etc.

AES, New York, NY, Oct 29-Nov 1 2015

AES LogoWe will be exhibiting at the 139th AES which will be held at the Javits Center, New York, NY on Oct 29-Nov 1, 2015.

At our booth (#242) we will be demonstrating the latest release of the SoundCheck software, version 14,  and the new SoundCheck 14.1 for Mac, as well as showcasing our entire audio test hardware lineup including the new AudioConnect audio interface and BTC-4148 bluetooth interface. We will be demonstrating how you can test virtually any type of audio or audio electronic device with the SoundCheck test system, and showing off some of the latest features of our software.

Steve Temme will also be co-presenting a paper entitled ‘Headphone Response: Target Equalization Trade-offs and Limitations’ with Christopher Struck of CJS Labs. This paper is first up in the P4-1 session (Transducers, Part 1) at 2.30pm on October 29th. In this paper, the effects of headphone response and equalization are examined with respect to the influence on perceived sound quality. Free field, diffuse field, and hybrid real sound field targets are shown and objective response data for a number of commercially available headphones are studied and compared. Irregular responses are examined to determine the source of response anomalies, whether these can successfully be equalized and what the limitations are. The goal is to develop a robust process for evaluating and appropriately equalizing headphone responses to a psychoacoustically valid target and to understand the constraints.

AES Show Web Site

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Fall 2015 SoundCheck and Electroacoustic Training Dates Announced

trainingWe are excited to be offering training on both East and West coasts this Fall.

Classes will be held in our Boston offices on September 21-23, and in the San Jose area on Oct 5-7. Both sessions will follow the same format, beginning with a 1-day course on electroacoustics testing, presented by Chris Struck of CJS Labs. In this useful class you will learn about the theory behind your audio measurements. The content will cover sound level measurement, psychoacoustics, electroacoustics, soundfields in real rooms, frequency responses, test signals and more. It is ideal for those new to the industry or anyone wishing to gain a better understanding of the measurement principles behind their acoustic tests.

The 2nd and 3rd day will be our 2 day SoundCheck training class. This covers all the major features of SoundCheck version 14, including writing sequences, test signals, analysis, distortion measurements and more. The class is a combination of presentations interspersed with hands-on exercises to ensure that you are comfortable with all the concepts and methods taught before you leave the classroom. Although no previous SoundCheck experience is assumed, the course still offers plenty to users familiar with writing basic sequences. Although the SoundCheck training is intended as a 2-day program, it is possible to attend just one day of the training. We are working on finalizing venues, but please put the dates in your diary, and we’ll have more information soon.
San Jose: Plaza Suites, Santa Clara.

Boston: Listen Offices. 580 Harrison Ave Ste 3W, Boston, MA 02118.


Advanced SoundCheck Training – June 1, 2015

We are excited to announce a 1-day SoundCheck® Advanced Training Seminar on Monday, June 1st 2015.

This new training class covers a combination of advanced electroacoustics education and SoundCheck topics that are beyond the scope of our basic 2-day training course. It is of broad interest to most testing applications, although the open loop testing is particularly relevant to smartphone, tablet and other devices which do not have an audio path between test system and device.

In celebration of our (and SoundCheck’s) 20th anniversary this year, we are offering this course at 1995 prices – just $199!

Places are limited, so sign up early.

8:30am: Registration & Introductions
8:45am: Choosing the Right Stimulus Type – Steve Temme
10:15am: Coffee Break
10:30am: Open Loop Testing – Dan Knighten
12:00pm: Lunch
1:00pm: Measuring Distortion – Steve Temme
2:30pm: Coffee Break
2:45pm: Processing Data Offline – Brian Fallon
3:45pm: Simulated Free Field Measurements – Steve Temme
5:00pm: End

Instructors: Steve Temme, Dan Knighten, Brian Fallon, Listen, Inc.

Cost: $199

Registration Form


See Us at AES in LA Oct 2014

AES LogoWe 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 will be demonstrating how you can test virtually any type of audio or audio electronic device with the SoundCheck test system, and showing off some of the latest features.

Listen President, Steve Temme will co-present a paper with Dr. Sean Olive of Harman International. The paper, entitled ‘The Correlation Between Distortion Audibility and Listener Preference in Headphones’ attempts to define the relationship between objective testing using various distortion measurement techniques and listener preference. This paper will form part of the P4 – Transducers paper session on Thursday, October 9 from 2:30 – 5:30 pm.

SoundCheck and Electroacoustic Training Oct 2014

trainingWe 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 all aspects of using the SoundCheck software from setup and calibration through to writing sequences and understanding the software’s advanced options.

The electroacoustic course focuses on the fundamentals of electroacoustic measurements, including principles of acoustics, instrumentation, and data interpretation as well as practical information on how to perform appropriate tests.

China Tour – June 2014

GRAS Production Line Acoustic Test ChamberListen’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 test system for testing smartphones and tablets, consisting of Listen’s SoundCheck software in conjunction with a the new GRAS production line acoustic test chamber will be presented. There is no charge to attend, but registration is required.

Tour dates:

June 16th Beijing
June 17th Suzhou
June 18th Shanghai
June 19th Shenzhen
June 20th Taipei

See Us at ALMA – Jan 2014

almalogoListen will be exhibiting at the ALMA Winter Symposium at the Tuscany Hotel in Las Vegas on Jan 4-5 2014. The ALMA show, immediately before CES is a small conference focused on the Loudspeaker, headphone and microphone marketplace, with an excellent selection of training, papers and seminars from industry-leading experts. Listen will showcase its complete range of test hardware, demonstrate the soon-to-be-released SoundCheck 13 (see above) and invite you to participate in a headphone listening challenge.
Steve Temme will present a paper entitled ‘Advances in Impedance Measurement of Loudspeakers and Headphones’, which discusses a novel electrical circuit that offers single channel impedance measurements with similar accuracy to complex dual channel measurement methods, which is expected to become popular for high throughput production line measurement. Dan Knighten will present a tutorial entitled ‘A Practical approach to measuring MEMS microphones’. In this presentation, he will include a basic overview of MEMS microphones and their applications followed by practical demonstration of measurements.