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Listen, Inc. is pleased to announce that it has received CE Mark approval for its SCAmp Audio Test Amplifier. Specifically designed for the audio test market, the SCAmp incorporates several features unique to the needs of audio test and measurement, and unnecessary features found in regular audio amplifiers have been eliminated to keep production line operation simple and error-proof. It integrates seamlessly with Listen’s SoundCheck audio test and measurement software and also works with other brands of test system for reliable audio tests both in the R&D lab and on the production line.
Launched last year, the product is already receiving positive reviews from customers for its ease of use, low distortion and accurate measurements. Its unique measurement circuit is patent pending and has been the subject of technical papers presented at Audio Engineering Society (AES) and ALMA conferences.
Listen president, Steve Temme commented, ‘We are excited to have this approval. It will certainly facilitate sales of SCAmp in the European Union and other countries that recognize or require this approval.’
This webinar covers the setup, calibration, and execution of the Hearing Aid Standards sequence package for SoundCheck. This package includes test sequences for measuring in accordance with the ANSI S3.22 and IEC 60118-7 standards. Presented by Brian Fallon, Listen, Inc. Status: Recorded. Watch Webinar
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.
The new PIO-9216 programmable serial audio data interface provides a simple and direct connection between circuit board components such DSP’s, DAC’s, ADC’s, CODECS , etc. and your audio test system. This enables accurate testing of devices that use the I2S, Left Justified, Right Justified and TDM audio data formats. This capability is valuable in the R&D lab for evaluating and de-bugging circuit board designs, and is also common on the production line, for example, for testing / QC of circuit boards before installation into a device. The interface works with any audio test system and can be computer controlled from within SoundCheck or via an external program.
SoundCheck 13 (shipping Q1 2014) is packed with improvements and upgrades, including a simpler, user interface, improved memory management, faster test development and the option to use longer test signals. Changes and improvements include a complete overhaul of the sequence editor, making it faster to write, troubleshoot and modify test sequences, and updated versions of the XY and Waveform graphs with a cleaner look and more intuitive interface.
Significant improvements to SoundCheck’s memory management allows the use of longer stimulus signals. It also means that sequences that use multiple acquisition steps can also keep iterative recorded waveforms in the memory list without incurring significant memory consumption. Customers performing multi-channel measurements will also experience substantial performance gains in SoundCheck 13 due to the lower memory footprint. This is beneficial for R&D applications with complex sequences, in particular in the telephony industry where long speech signals are widely used. A 64-bit version allows the program to access more system memory, which permits the use of much longer stimuli and allow large data sets to be opened into the memory list for offline analysis and reporting.
A demonstration and discussion of the new features introduced in SoundCheck 12. These include new tabs for display steps, single file sequences, relative file paths, a new offline setting, new features in the statistics step and more. Presented by Brian Fallon, Listen, Inc. Status: Recorded. Watch Webinar
Expand the capabilities of your test sequences by learning how to implement advanced functions such as conditional branching, looping, and sub-sequencing. Presented by Brian Fallon, Listen, Inc. Status: Recorded. Watch Webinar
Learn how to use the new post-processing modules introduced in SoundCheck 10 and SoundCheck 11 – waveform filter, Zwicker loudness and active speech. Presented by Steve Temme, Listen, Inc. Status: Recorded. Watch Webinar