Sept 30th, 2021. 9.00am and 2.00pm Eastern US time (6.00am and 11.00am West Coast time)
Join Les Quindipan and Anastassia Tolpygo on Sept 30th for a seminar on basic loudspeaker testing. This introductory seminar is aimed at anyone new to audio measurement, specifically loudspeaker testing. It will begin with an introduction to the basic design of a loudspeaker, including how a typical loudspeaker works. Various loudspeaker measurements will be explained, such as frequency response, distortion, sensitivity, phase/polarity and impedance, and how they might offer indications as to potential defects in a speaker. Typical test configurations for both R&D and end-of-line production test will be shown. A complete speaker test will be demonstrated, using SoundCheck and our free Loudspeaker complete test sequence. This will include setting up software and hardware, calibrating and configuring the test (e.g. setting pass/fail limits) and a discussion of the results. There is no charge for this seminar, but registration is required.
Note: We will be repeating this seminar in conjunction with our exclusive distributor in China, S&V Samford, on Oct 13th. Register for the China seminar if this timing suits you better or you prefer the slides translated into Chinese.
Register for Seminar
Oct 13th, 2021. 10.00am China Time / 2021 年 10 月 13 日上午 10 点（中国时间）
Join Les Quindipan and Anastassia Tolpygo on Oct 13th for a seminar on basic loudspeaker testing. This introductory seminar is aimed at anyone new to audio measurement, specifically loudspeaker testing. It will begin with an introduction to the basic design of a loudspeaker, including how a typical loudspeaker works. Various loudspeaker measurements will be explained, such as frequency response, distortion, sensitivity, phase/polarity and impedance, and how they might offer indications as to potential defects in a speaker. Typical test configurations for both R&D and end-of-line production test will be shown. A complete speaker test will be demonstrated, using SoundCheck and our free Loudspeaker complete test sequence. This will include setting up software and hardware, calibrating and configuring the test (e.g. setting pass/fail limits) and a discussion of the results. There is no charge for this seminar, but registration is required.
于10 月 13 日加入Les Quindipan 和 Anastassia Tolpygo主持的有关基础扬声器测试的研讨会吧。
此研讨会目的是向任何不熟悉音频测量的人介绍一下音频测量, 特别是扬声器测试。在研讨会中,首先会介绍扬声器的基本设计, 包括典型扬声器的工作原理。并将解释各种扬声器测量，例如频率响应、失真、灵敏度、相位/极性和阻抗, 以及扬声器测试如何提供有关扬声器潜在缺陷的指示。研讨会将展示用于研发和下线生产测试的典型测试配置。
在研讨会中将演示完整的扬声器测试。使用 SoundCheck 和我们免费的扬声器完整测试程序。这将包括设置软件和硬件、校准和配置测试（例如设置通过/失败限制）以及对结果的讨论。本次研讨会不收取任何费用，但需要预先报名。
Register for Seminar / 报名参加研讨会
SoundCheck Basic Training is in an all-new online format for 2021. We have taken the material from our popular 2-day Basic SoundCheck training course and re-formatted it into 6 x 2 hr online sessions. Each session, led by a live trainer, will include instruction, demos, quizzes, breakout sessions and discussion. Hands-on exercises will be provided to be completed between sessions and reviewed in subsequent classes.
Dates: Oct 25th, 26th, 27th and Nov 1st, 2nd, 3rd
Time: 6 x 2hr sessions from 11.00am-1.00pm Eastern US Time (8.00am-10.00am Western US Time)
Attendees must attend all 6 sessions to complete the course.
Cost: $295 ($195 for support contract holders). Additional discounts for multiple people from the same company signing up together (2-3 people: 10%; 4 people: 15%; 5+ people: 25%).
Instructors: Mark Latshaw and Cam Ruffle-Deignan
Session 1: Hardware & Calibration – configuring audio interfaces and external equipment; certified audio interfaces; Calibration of different DUT types (telephones, speakers, etc.)
Session 2:Data Management & Virtual Instruments – understanding SoundCheck’s memory list; offline mode; Virtual Instruments (Spectrum Analyzer, RTA, Multi-meter, Signal Generator, Oscilloscope)
Session 3: Sequence Writing Part 1 – introduction to the sequence wizard; stimulus; acquisition; basic analysis
Session 4: Sequence Writing Part 2 – Limits; Displays; Autosave; Recall; Printing
Session 5: Sequence Writing Part 3 – Messages & sequence logic; external control; sequence & step parameters
Session 6: Advanced Sequence Development – Post Processing; Statistics
This event has already taken place, but you can view the recording here.
May 27th, 2021. 9.00am and 2.00pm Eastern US time (6.00am and 11.00am West Coast time)
In this 1hr online seminar, Les Quindipan of Listen, Inc. and Kristopher Hett of Portland Tool & Die demonstrate how to test Bluetooth devices.
Kris Hett will introduce the Portland Tool & Die Bluetooth interfaces that are used to connect the device under test to the measurement system. He will discuss the technical specifications, and explain the differences between these and other types of Bluetooth interfaces. Les Quindipan will then demonstrate how these have been fully integrated into SoundCheck for simple plug and play operation, and how they can be used in test sequences. He will also highlight some of the algorithms included in SoundCheck that overcome Bluetooth-induced time delays, thus enabling these devices to be tested in a similar way to their wired counterparts. A complete test on a Bluetooth speaker and a Bluetooth Headset will be demonstrated.
There is no charge for this seminar, but registration is required.
Note: We are repeating this seminar in conjunction with our exclusive distributor in China, S&V Samford, on June 3rd at 10.00am China time. Please register for this seminar instead if this timing suits you better or you prefer the slides translated into Chinese.
In this 120 minute online seminar, S&V Samford presents Listen’s Technical Support Manager, Steve Tatarunis, discussing some of the more advanced aspects of microphone testing including:
- Substitution, Equalized Source and Transfer Function sequences in SoundCheck, including how to calibrate for these measurements. This is an expansion of material covered in the ‘basic microphone testing webinar’ and include more details about the sequences and calibration and the trade-offs of each method.
- Advanced measurements including polar plot, phase, self-noise, signal to noise, distortion, active/passive noise rejection
- Open loop microphone testing for voice activated devices such as smart speakers, automotive audio etc.
- Advanced hardware and test configurations for measuring microphone arrays and MEMS devices
There is no charge for this seminar, but registration is required.
在这个120分钟的在线研讨会中，声振环保仪器有限公司以及Listen,Inc.技术支持经理Steve Tatarunis，会与大家探讨麦克风测量进阶的知识, 包括：
- SoundCheck中的对比测试法、均衡音源和传递函数程序，包括如何校准这些测量。 这是“基础麦克风测试网络研讨会”涵盖的内容的扩展，并包括有关程序、校准以及每种方法取舍的详细信息。
Due to the current COVID-19 situation, we are not offering in-person group training classes. These will be resumed when regulations allow and there is the demand for it.
In the meantime, we offer customized online training for groups of people from the same company, and can offer flexibility in timing, session length and schedule. Please contact your sales engineer for more information.
Additionally, we will shortly be announcing some scheduled online training classes and these will be posted here as soon as information is available.
Don’t forget to check out our collection of Working from Home with SoundCheck videos on our Youtube channel. Our support team has created this series of videos that demonstrate features of SoundCheck that can easily be explored offline without full access to your lab.
If you are a new user, our series of on-demand training videos is a good place to start. These cover much of the content from day 1 of our basic 2 day training.
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.
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 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.
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 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.
June 16th Beijing
June 17th Suzhou
June 18th Shanghai
June 19th Shenzhen
June 20th Taipei
Listen 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.