Answering the call for MEMS mic testing.
Highest performance audio analyzer in the world
Only 24-bit, 1 MHz, 1 million point FFTs in the world
The fastest production test audio analyzer in the world
Only HDMI audio analyzer in the worldHow PDM works, testing digital MEMS microphones and associated chips with the new PDM Option for APx. 
Best in class, High performance audio analyzer instruments.
AP audio analyzers are on R&D benches and production lines across the world because engineers want the assurance of instruments that are best in class: best for performance, best for supporting the newest audio formats and interfaces, best for speed, data sharing, and ease-of-use.
Best in class and the recognized standard in audio test.
AP NEWS
Subscribe to Audio.TST- APx500 v3.0
/ April 2012
Available for immediate download
APx500 v3.0 brings support for the PESQ software option and the new PDM Option module, with enhancements to Digital Serial (DSIO) functionality and improvements to the user interface. APx500 v3.0 is strongly recommended for all APx users.
- Audio.TST
/ April 2012
What's New in APx500 v3.0
Details of PESQ and PDM options, DSIO enhancements and more.
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AP in the news / March 2012
AP's Dr. Tom Kite, VP of Engineering, interviewed in Wireless Design and Development
Dr. Kite discusses AP's leading role in audio test for mobile devices, including Bluetooth™ for both voice and music, PESQ, and MEMS microphones
TECHNOTES & AP APPLIED
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Technote 117: Testing PDM Mics and Inputs
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Technote 116: Testing Smartphones and Tablets
Testing all the audio outputs, including HDMI and Bluetooth.
TN-116_Testing_Smartphones_and_Tablets.pdf (1 MB) -
Technote 115: Measuring Mic Preamplifier Noise
Theory and practical instructions for measuring noise in mic preamplifiers and other high-gain circuits.
TN-115_Measuring_Mic_Preamplifier_Noise.pdf (1.3 MB)
