Audio Precision Simplifies Audio Test Automation with Latest Software

Created on 2008-01-15 16:23:00

Beaverton, OR – Jan 15, 2008 – Audio Precision, the world-wide leader in audio test and measurement, announced today that new functionality has been added to its APx500 Series of multichannel audio analyzers with the release of version 2.1 of the APx500 measurement software and a new digital I/O module.

The new release focuses on simplifying automation in audio test. Improvements to the award-winning Measurement Navigator allow users to builda sequence of measurements across multiple signal paths with operator prompts, customized pass/fail limits, calls to external applications and automatic graphic reports.


Users can also employ the comprehensive API to write custom applications or incorporate an APx analyzer into a larger automated setup. To support developers, the API documentation is supplemented with a library of sample tests written for LabVIEW, VB.NET and C#. For more information please visit


Other enhancements in this release include a new digital I/O module that adds AES/EBU connectivity to the APx Series, switcher support which extends the potential channel count of an APx analyzer to 192 in and out, and several new audio measurements such as noise, 6-digit frequency measurements and DC level over time.

For more feature information and instrument specifications, customers should contact their local AP distributor or visit

“APx continues to expand its capabilities,” says Bruce Hofer, Chairman and Co-founder of Audio Precision. “Version 1.1 added coded audio; version 2.0 and the 16 channel model were aimed at power amp testers. Now the improvements to the Measurement Navigator and API in version 2.1 really open the door for the production line and other power-user environments.”


Price and Availability

APx500 v2.1 is available as a free download from All new APx analyzers shipped after January 21 will come with the new AES/EBU digital I/O as standard. Customers with older APx units can upgrade their digital I/O module. Please contact your local AP representative for pricing on the upgrade.


About Audio Precision

Audio Precision has been designing and marketing audio test instruments since 1984. The industry standard in audio test, Audio Precision provides high quality solutions to help engineers worldwide design and build audio products that meet or exceed the highest performance standards. For more information, visit the Audio Precision Web site at