T.H.E. Show Newport Beach 2015 Report
The Home Entertainment Show 2015
Audio Precision G.R.A.S. KEMAR And APx515

  Audio Precision was at T.H.E. Show Newport 2015 with their G.R.A.S. binaural head ($25,000) mated to their APx515 ($7000) system. G.R.A.S. enjoys an excellent reputation in the field of sound and vibration measurement and is part of a complete solution for those seeking to test devices with acoustic interfaces, audio analysis, and precise calibration. The G.R.A.S. KEMAR head is part of an overall solution for earphone measurement too. The Head and Torso Simulator line of KEMAR acts as a calibrated measurement microphone. The benefits include helping designers of audio devices to understand the results of their work and to enable them to fine-tune for best sound / results.

The long box sitting on front of the latop is Audio Precision's APX 515 and it is a high performance audio analyzer optimized for production test. APx515 has a typical THD+N of –106 dB, a 1.2M point FFT with 24-bit resolution, and 216k digital I/O. It is a best-in-class instrument for its combination of speed, performance, automation, and ease-of-use. APx is claimed to be the fastest audio analyzer in the world, returning 21 audio measurements in as fast as 1.2 seconds. It is also the easiest to use, with one-click measurements, custom reporting and sophisticated automation without any programming. A full API and LabVIEW driver is also provided. This speed and ease-of-use means test will never be a bottleneck, and production line managers can achieve reliable, consistent results compared to the current low-cost alternatives like a distortion analyzer.

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