We are excited to announce that SoundCheck fully integrates with the Mentor A2B interface for testing automotive audio connected via the Analog Devices A2B digital bus. The Mentor Analyzer, which handles the transmission of signal in to and out of the bus, is viewed as an ASIO interface by SoundCheck, enabling SoundCheck to read/write to the device and therefore analyze any transducer connected to the A2B bus. A custom VI permits control of the Mentor A2B interface configuration via SoundCheck. This means that it can be controlled from within a SoundCheck sequence, for example loading configurations and starting/stopping ASIO streams. This makes it an ideal R&D or production line test solution for automotive audio, or for anyone testing transducers connected via A2B bus.
Watch a video demonstration of an automotive audio test using the Mentor A2B interface:
Please see our knowledgebase article for download links and installation instructions.
Contact your Listen sales engineer for more information.
In this short 10 minute video, sales engineer Les Quindipan gives a brief overview and demonstration of the new features and functionality of SoundCheck 16.
We are excited to announce a new low-cost headphone test package – SoundCheck ONE for headphone testing (part # 1007). This includes SoundCheck ONE, a basic version of the SoundCheck software, along with AudioConnectTM, an audio interface with built-in headphone amplifier. Only a headphone coupler or test fixture and associated power supply is additionally needed to make up a complete headphone test system. The SoundCheck ONE headphone test sequence carries out all basic headphone measurements such as frequency response, sensitivity, THD, Rub & Buzz, Perceptual Rub & Buzz, loose particles, polarity and channel balance. It can be easily customized and saved for specific products by turning individual measurements on and off, and by adjusting settings within each sequence step such as stimulus range and level, tolerance limits, graphical displays, and data saving. It is an excellent low-cost entry level system, ideal for those on a tight budget.
Please note that although the SoundCheck ONE Headphone test sequence cannot have steps added/removed or the layout modified, customers may upgrade to a SoundCheck package that supports this at any time in the future, should testing needs expand to require additional functionality. Listen can also offer the GRAS 45CC headphone test fixture along with a SoundConnect 2 power supply for a complete production line test system.
Production line headphone test setup with SoundCheck ONE and the GRAS 45CC
For more information, please contact your Listen sales engineer: firstname.lastname@example.org
A new 4 page brochure outlines Listen’s capabilities in loudspeaker and microspeaker testing. SoundCheck offers simple, fast and accurate testing of any loudspeaker – no matter what the form factor, functionality, connector or additional features. It measures a full range of driver parameters via traditional analog or digital, wireless/Bluetooth, Toslink, HDMI or USB connections, as well as microphone performance, surround sound and more.
Measurements that SoundCheck can make include:
- Frequency response
- Phase & polarity
- Distortion: harmonic, IM, multitone & non-coherent
- Rub & Buzz (inc. Perceptual Rub & Buzz)
- Directivity (including polar plots)
- Max SPL
- Power rating tests
- Simulated free field measurements
- Thiele-Small parameters
- Time-frequency analysis
A new 4 page brochure outlines Listen’s capabilities in automotive audio testing. SoundCheck offers simple, fast and accurate testing of vehicle audio quality, from individual speaker components to complete in-vehicle infotainment and telematics systems. With interfaces to connect via Bluetooth, Lightning, USB and with individual MEMs devices, as well as analog connections, SoundCheck can handle the complexity and demands of testing in today’s vehicles. The measurements that SoundCheck can make include:
- Speaker/system response
- Speaker/panel buzz, squeak and rattle
- Bluetooth audio performance
- Head unit and amplifier response & THD+N
- Microphone/microphone array response
- Active noise cancellation effectiveness
- Spatial reproduction accuracy
In this short 10 minute video, sales engineer Les Quindipan gives a brief overview of the new features and functionality, and demonstrates them in the software.
Listen’s revolutionary audio test amplifier, SC Amp, has been awarded US Patent # 9,386,387. This patent covers Listen’s unique high accuracy single channel impedance measurement method, which used a unique feedback circuit to offer dual channel accuracy using just a single channel. This enables full electrical and audio tests to be carried out simultaneously and with high accuracy using just 2 channels.
Specifically designed for the audio test market, SC Amp also incorporates several other features unique to the needs of audio test and measurement, such as low distortion (THD <0.025%) and a low noise floor (>100dB). Fixed gain eliminates calibration errors as there is no gain knob to be accidentally knocked or tweaked when it is in use. It supports the application of a DC voltage offset to the AC signal for testing transducers under adverse conditions, and features overload/output protection to prevent damage in case of shorting or overload.
Many unnecessary features found in regular audio amplifiers have been eliminated to keep production line operation simple and error-proof. Although it is designed to integrate seamlessly with Listen’s SoundCheck audio test and measurement software, it will also work well with other brands of test system.
Listen president, Steve Temme commented, ‘We are thrilled that the innovative design of this product has been recognized with this patent, and we are confident that this method will be quickly recognized by the marketplace.’