Basic Soundcheck Training Online – Oct/Nov 2021

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


Course Outline

Session 1: Hardware & Calibration – configuring audio interfaces and external equipment; certified audio interfaces; Calibration of different DUT types (telephones, speakers, etc.)

Session 2: Memory list, Data management, Virtual Instruments (Spectrum Analyzer, RTA, Multi-meter, Signal Generator, Oscilloscope), Sequence Editor Basics

Session 3: Sequence Writing Part 1 – introduction to the sequence wizard; stimulus; acquisition; basic analysis; limits

Session 4: Sequence Writing Part 2 – 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




SoundCheck 19 New Features Video

In this short video, sales engineer Les Quindipan gives a brief overview and demonstration of the new features and functionality of SoundCheck 19, including the multichannel RTA, RT60 Room Acoustics module, AmpConnect 621 control, and more.

Huge Discounts on SoundCheck 19 Upgrades

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. The upgrade offer is a simple flat rate: $3,950 for owners of SoundCheck 13 or 14, $3,250 for owners of version 15, $2,500 for owners of versions 16 through 17, and $1,395 for owners of version 18. All the modules on your present system will be included.

SoundCheck® 19 offers new features for multi-channel and room acoustics, as well as many usability upgrades including:

  • Multichannel RTA: The single-channel RTA is replaced with a new multi-channel version, which enables viewing of multiple signal paths simultaneously for a convenient view of many measurements across a wide range of applications. Spectrum settings are configured independently for each channel for complete measurement flexibility.
  • Room Acoustics RT60 (optional module): This module offers extremely fast and accurate measurement of the reverberation time and clarity of any room or space with calibrated signal paths.
  • WASAPI-Exclusive Mode: SoundCheck can now operate in WASAPI-exclusive mode. This delivers lower latency, ensures that sample rate conversion from the built-in Windows audio engine will not occur, and enables SoundCheck to ‘lock’ the audio interface to avoid measurement disruption by system sounds.
  • AmpConnect 621 Control: SoundCheck 19 supports AmpConnect 621, Listen’s new high resolution multichannel audio interface. Set-up and configuration is extremely simple and fast with full plug-and-play functionality and TEDS support for automatic identification, configuration and calibration of microphones and accelerometers.
  • Diagnostic Window: Warning dialog windows can now be suppressed when running a sequence, instead logging the errors, warnings, and information in a separate diagnostic window. This avoids sequence interruption by dialog windows in unattended or highly automated situations.
  • USB Controller Knob Compatibility: SoundCheck communicates with the Drok USB Controller Knob to simulate the feel of a manual analog signal generator. Used in conjunction with other virtual instruments such as the RTA, spectrum analyzer and distortion meter, this offers a rapid way to identify defects by observing the response while manually fine-tuning the signal generator.


Call your sales engineer today to receive a quote for upgrading all your SoundCheck systems. These discounted rates are only available until May 31, 2021, so please get your order in soon!


SoundCheck 19 Discounted Upgrade Pricing
Upgrade from VersionUpgrade List PricePromotional Upgrade PriceDiscount

If you are using a version prior to version 13, please contact your sales engineer for discounted price information.


  • Versions of SoundCheck prior to 14 are no longer supported. We highly recommend that you take advantage of this limited time offer to upgrade your systems to the latest version. Please contact your sales engineer to discuss additional multi-system upgrade discounts.
  • If you have multiple systems with different purchase dates, we are happy to work with you to get them all upgraded to the latest version and onto the same annual support contract cycle.
  • You can also reduce your future upgrade costs by purchasing an annual support contract for an additional $950. With this, you will receive SoundCheck 20 when it is released at no extra charge, as well as priority support service.

Please note that these prices are applicable to the US only. Users outside the US should contact Listen or their local representative for pricing information.

Please email your purchase order to You can also contact us on this email address if you would like to pay by credit card, have any questions, or need additional paperwork to support your order.

Please also see the detailed information on new features.


SoundCheck® 19 Released: New Features for Multichannel Measurements

SoundCheck® 19,  the new release of Listen, Inc.’s flagship audio test and measurement system, offers additional functionality for multichannel measurements, including a new Multi-channel RTA, WASAPI-exclusive mode, and AmpConnect 621 control. Additionally, the inclusion of room acoustics measurements offers increased capability for those looking to evaluate devices in real-world situations. Many of these features also add value on the production line, minimizing setup time, reducing the chance of user-error, and ensuring smoother operation in automated situations.

In this release, the original ANSI S1.11-2004 Class 0 standard compliant, single-channel RTA has been enhanced to show multiple channels simultaneously.  Settings for these can be configured independently, e.g. adding different weighting curves, and the power-averaged response displayed. This presents a convenient view of many measurements across a wide range of applications including overlaying left and right earphone responses to check for fit and seal, microphone array captures (e.g. in-vehicle cabin measurements), real time adjustment of active noise cancellation filter, and more.  For maximum flexibility, spectrum settings are set independently for each channel, and all multi-channel RTA functionality can also be used within a test sequence for automation.

The optional RT60 Room Acoustics module enables measurement of the reverberation time and clarity of any room or space with fully calibrated signal paths. This is useful for quantifying how speakers will interact with the acoustics of a particular type of room. It can also help identify problems with room acoustics so that the floor, ceiling and walls can be treated accordingly. SoundCheck uses a continuous sine sweep with the Log TSR algorithm to obtain the impulse response. The reverberation decay curve is calculated from the backwards integrated impulse response. This method, conforming to ISO 3382-1:2009, offers extremely fast measurements, requires just one measurement at each location, and minimizes the effect of noise and distortion on the measurement.

Another enhancement is the option to use WASAPI-exclusive mode with Windows 10 audio devices. This advanced interface offers superior communication with audio devices, allowing SoundCheck to bypass the Windows audio engine, and send audio streams directly to the device. This delivers lower latency and ensures that sample rate conversion from the built-in Windows audio engine will not occur. It also enables SoundCheck to put an exclusive lock on the audio interface so that a measurement cannot be disrupted by system sounds. The ability to use multiple WASAPI devices simultaneously offers significant advantages for multichannel applications, particularly where the channel count requires multiple audio interfaces. WASAPI and ASIO devices can be combined to increase channel availability.

SoundCheck 19 supports AmpConnect 621, Listen’s new high resolution (up to 192kHz) multichannel audio interface. AmpConnect 621 has no front panel controls; it is exclusively configured via the SoundCheck 19 software. Set-up and configuration is extremely simple and fast with full plug-and-play functionality and TEDS support for automatic identification, configuration and calibration of microphones and accelerometers. The absence of front panel knobs also provides an added level of test integrity by ensuring that settings cannot be inadvertently adjusted outside of your test configuration. SoundCheck 19 with AmpConnect 621 is a simple and cost-effective solution for automotive measurements with a 6-microphone array, sound power measurements, or for measuring devices with multiple speakers such as smartphones or sound bars.

Also new is a diagnostic window which enables suppression of warning dialog windows when running a sequence, logging any errors, warnings, and information in a separate file. This is useful when Soundcheck is run in unattended or in highly automated situations (for example, on a production line) where dialog windows would interrupt the execution of a sequence. It also facilitates troubleshooting as the log is easily shared via email. SoundCheck also now allows the Drok USB Controller Knob to be used to adjust the SoundCheck Signal Generator, simulating the feel and control of operation of a traditional manual analog signal generator. Used with other virtual instruments such as the RTA, spectrum analyzer and distortion meter, this offers a rapid way to identify defects by observing the response while manually fine-tuning the signal generator.


More information (video, PDF, graphics, etc.):

Display Tutorial

Our series of basic SoundCheck training instructional videos concludes with 7 short videos highlighting the different display options ranging from simply x-y graphs  and tables to polar plots, and display customization, and of course how to use all these options in a sequence.

Part 1: Display Step Basics
Part 2: Display Configuration
Part 3: Graph Palettes
Part 4: X-Y and Waveform Graphs
Part 5: Tables, Text and Pictures
Part 6: Results
Part 7: Polar Plot

SoundCheck 18.1 Released

SoundCheck 18.1 is now available. This update to version 18 includes a couple of new features and several bug-fixes. It introduces control for the upcoming AmpConnect 621 interface, an all-in-one multichannel interface (6-in, 2-out) that is exclusively controlled via the software for seamless integration with test sequences and virtual instruments. It also includes the new Auto Delay+ algorithm for increased accuracy of open loop measurements, especially in cases where the delay is longer than 1 second. It is particularly useful for measuring smart devices such as smart speakers, automotive audio, hearables, etc., where test signals are sent via the cloud. In addition, there are several bug fixes. Version 18.1 is available free of charge to all owners of version 18. If you have not received a download link from your sales engineer, please contact us.

More about SoundCheck 18/18.1

Statistics Tutorial

Our series of instructional training videos continues with this series of 4 short videos explaining Statistics. These introduce the user to the statistics options in SoundCheck, and demonstrate how to use them in 4 different ways: in sequences, with results, Process Capability measurements, and offline statistics.

Statistics 1: Data
Statistics 2: Results
Statistics 3: Process Capability
Statistics 4: Offline

Online Training: Advanced Analysis

Sept 15 at 9.00am US East Coast time (3pm Central European Time, 2pm UK time) and 2.00pm US East Coast time (11am US West Coast time)

In this 2 hour training, we will be taking a deeper dive into some of the more advanced features of the analysis editor. This will be useful for anyone with a basic understanding of SoundCheck setup, calibration and sequence writing who is looking to add value to their measurements by optimizing their test procedures. We will be taking a closer look at how to configure various analysis algorithms, and the impacts of the chosen settings on measurement confidence and speed. This training offers value to both R&D and production users. We will cover:

  • Understanding and configuring the distortion options in SoundCheck’s Harmonictrak algorithm, including how to select the best option for your application
  • Configuring the Loose Particles algorithm to detect transients in waveforms to catch manufacturing defects that may not be highlighted using frequency based analysis
  • Using SoundCheck’s measurement confidence option to adjust the stimulus to obtain the best trade off between speed and accuracy
  • How to analyze ‘real world’ test signals (e.g. multitone, noise, music, speech) for measuring devices that do not perform well with sine wave signals (e.g. telecoms, those including DSP)

This training is free to support contract holders and $79 for others.

Register Now

Online Seminar: Microphone Measurement Basics

Sept 17, 2020. 9.00am and 2.00pm US East Coast time  (6.00 am and 11.00 am West Coast time)

Microphone test in Anechoic chamber (photo courtesy of Shure, Inc. Used with permission.)

In this 60 minute online seminar, Listen’s Technical Support Manager, Steve Tatarunis discusses Microphone Measurement Basics.

Listen, Inc’s SoundCheck electroacoustic test system is used by the world’s leading OEMs and their contract manufacturers on thousands of production lines worldwide. Although it can be used for testing a wide range of devices including speakers, microspeakers, headphones, headsets, smart devices, cellphones and more, this seminar will focus on microphones.

In this online session, Steve Tatarunis will cover the basics of microphone testing, including:

  • Common microphone types and how they work
  • Microphone specifications
  • How to measure microphones using the two standard methods available in SoundCheck
    • Substitution method
    • Equalized speaker method
  • R&D and production test environments
  • Important measurements such as frequency response, sensitivity, etc.

There is no charge for this seminar, but registration is required. Please sign up below. Note that you will be sent login details the day before. The same login details will offer access at both times, so you can choose to attend the one most convenient to you.

Online Training: Basic Sequence Writing (European Schedule)

Sept 23 at 3pm Central European Time, 2pm UK time, 9am US (East Coast) time [Note: rescheduled from original date of Sept 8th]

The ability to quickly generate test sequences is one of the most powerful SoundCheck skills you can acquire. We are bringing a 2 hour basic sequence writing course to the comfort of your own home with our new online training at a convenient time for our European customers.

This 2 hour course is a condensed version of the basics of sequence writing from our popular 2 day training class. We will start from the beginning, explaining how to determine the test parameters and hardware that will meet your specific test requirements. We will look at best practices for creating a sequence, and finally we will assemble a sequence from scratch. This course is ideal for novice SoundCheck users, or those who have been using SoundCheck with sequences that others have written and who are ready to start developing their own. This training is free to support contract holders and US $79 for others.

Register Now