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Rock-Andral Ludger (Rocky) has joined Listen in the role of Order Processing Specialist. In this role, Rocky is responsible for every order from the moment it is placed, through fulfilment, to ensuring safe delivery of the product. He is also the smiling face at our front desk and keeps the office running smoothly. Rocky joins Listen with a degree in business from Kentucky University and several years’ supply chain management experience, both in the Boston area and in his native Haiti where he also used to play soccer professionally. He also speaks multiple languages fluently, including Spanish, French and Creole. Outside of work, Rocky is a keen athlete who enjoys playing and watching many different sports and, like most at Listen, also enjoys music. Rocky also founded and runs a non-profit organization in Haiti, New Vision for Youth, that coaches young professional leaders.
The updated BTC-4149 Bluetooth measurement interface now supports the aptX HD and aptX-Low Latency Bluetooth protocols for accurate measurement of high definition and low latency Bluetooth devices, in addition to the standard aptX, CVSD and mSBC codecs previously available. This enables manufacturers of Bluetooth audio devices to accurately test the audio of the latest high performance Bluetooth sink and Bluetooth source devices, making the same measurements as on traditional audio devices. In addition, the device has a new, larger color screen for improved ease of operation.
The BTC-4149 is designed as a R&D interface, testing both sink and source devices with full control over Bluetooth protocol settings, including explicit control over codec choice and transmitter power, as well as various pairing options.
Also available is a lower cost production tool, the BQC-4149. This tests Bluetooth Sink devices only, and offers only the standard aptX, CVSD and mSBC, along with more limited control of Bluetooth parameters. This model has been updated to use the same chipset as the BTC-4149 to ensure accurate production line replication of R&D tests for those customers who use both interfaces.
Both interfaces integrate seamlessly with SoundCheck, so that all parameters can be set and modified from within a test sequence for fully-automated testing of Bluetooth devices. This accelerates testing, particularly on the production line as it avoids the need to manually adjust Bluetooth settings, reducing the possibility of error. It also enables a device to be tested using multiple Bluetooth protocols and settings by taking sequential measurements using different settings in one continuous test.
This training video provides an overview of how to create and use custom VIs. Custom VIs enable you to extend the capability of your SoundCheck system by
- Programming your own highly customized tests which run within Soundcheck,
which is useful if your device requires additional specific tests that fall
outside of the SoundCheck test suite
- Enabling SoundCheck to control other hardware devices and use them in test
sequences, for example additional application-specific interfaces.
Note that the method is slightly different in SoundCheck version 16 and later versus version 15, so please view the video that corresponds to your SoundCheck installation.
This series of 5 training videos explains how to use sequence loops and logic. Sequence loops and logic are extremely powerful features that can significantly reduce the time taken both to program and run tests. The first video walks you through the basics, then the following videos focus on 4 examples: Loop Stimulus Level, Polar Plot Measurements, Jump To Sections and Digital I/O.
Sequence Loops and Logic 1: The Basics
Sequence Loops and Logic 2: Loop Stimulus Level
Sequence Loops and Logic 3: Polar Plot Measurements
Sequence Loops and Logic 4: Jump To Sections
Sequence Loops and Logic 5: Digital I/O
These 3 training videos provides guidance on how to use message steps in sequences. Message steps enable dialog between the sequence and either the operator or external devices. These fall into 3 categories, each with a short instructional video.
Part 1 – Operator Message steps
– messages between the sequence and operator, for example to advise the operator to do something, or to request the operator input a value or yes/no input.
Part 2 – External control messages
– messages that enable communication with external hardware such as DIOs and RS232 devices.
Part 3 – Listen Hardware Control messages
– messages that enable control over Listen and Portland Tool & Die hardware.
These 5 short tutorials guide the user through the various tabs in the SoundCheck analysis editor. Note: The next tutorial will cover the remaining tabs and the available analysis algorithms.
In this short video, sales engineer Les Quindipan gives a brief overview and demonstration of the new features and functionality of SoundCheck 17, including the new level and cross-correlation trigger, average curve/waveform post-processing functionality, new color palettes, save to MATLAB option, and more.
Listen is excited to announce the release of SoundCheck Version 17. This new Windows/Mac release offers many features to simplify multi-channel and voice controlled testing, such as a new level and cross-correlation trigger, average curve/waveform post-processing functionality, the ability to easily read and work with multichannel wavefiles, multiple DC Connect control, and enhanced database options. On the usability side, SoundCheck 17 offers increased flexibility in color palettes, save to MATLAB option, and the ability to recall CSV formatted text files.
Today’s modern audio devices have two important testing requirements: the ability to test a voice activated device with no analog input, and the ability to control and test multiple channels simultaneously, for example, microphone or speaker arrays. SoundCheck 17 contains a host of new features to facilitate this. For voice-activated measurements on devices with no analog input, such as smart speakers, wearables, hearables and smart home devices, the new level & cross-correlation ‘smart trigger’ offers improved performance. By using a chirp-based conditioning tone and searching for the exact log sweep frequency, it is more robust and less susceptible to false triggers than simpler level and frequency triggers.
To save time when testing smart devices where it is necessary to test microphone or speaker arrays, SoundCheck 17 can now directly read multichannel WAV files from the memory list, signal generator and stimulus steps. Also for testing multi-channel arrays, multiple DC Connects can now be controlled, independently configured, and used for data acquisition within SoundCheck. The new Average Curve/WFM post processing function which allows the average curve (or waveform) of a selected group of data in the memory list to be obtained, is particularly useful for power averaging selected curves, averaging curves from different spatial positions (e.g. microphone arrays), and complex averaging of multiple measurements with background noise. Finally, the database module has been enhanced and is now it 4x faster and 3x more space-efficient than previous versions. This is particularly important for testing modern audio products with multiple transducers (microphone arrays, multiple speakers, etc.), as these often generate large volumes of data.
Usability enhancements include improved color pallets which offer ultimate flexibility in defining colors for backgrounds, grids, cursors and graph lines. New default color palettes are included, and user-defined palettes can be saved as pre-set files which will be applied to any new display created. Multiple palettes can be saved, for example allowing different color sets for different applications. In addition, SoundCheck can now save any data (including memory list curves and Soundmap (time frequency analysis) data ) to MATLAB for additional processing. Data is saved as a standard MAT file and can be manually or automatically saved in this format.
Additional new features include support for the new APTX HD codec for high resolution Bluetooth testing, a 64 bit Demo / Data Viewer which enables measured data to be recalled and viewed without the need to own a separate license, and the ability to recall CSV files as well as TXT files.
More Information: https://www.listeninc.com/products/soundcheck-software/specs/