Audio Precision Introduces Measurement Microphones

BEAVERTON, OR --- Audio Precision announces the expansion of its electro-acoustic test offering with the introduction of a series of calibrated measurement microphones. The microphones are free-field, pre-polarized systems combining mic capsules with low-noise preamplifiers, and are an ideal complement to the APx line of audio analyzers, software and accessories.

AP Measurement Microphones

The AP microphone family includes two ½-inch and two ¼-inch measurement mics, as well as an occluded ear simulator. All units are pre-polarized, TEDS-compliant and CCP powered. The microphones are calibrated, ensuring the utmost of confidence in measurement results when paired with calibrated instruments such as the APx515 Audio Analyzer and APx1701 Transducer Test Interface. Each mic is delivered with its own certificate of calibration.

What is TEDS?

Each Audio Precision measurement microphone and microphone system is TEDS programmed to the IEEE 1451.4 standard for SMART transducers, v1.0 format. TEDS—Transducer Electronic Data Sheet—data contains microphone identification and calibration information that can be read by a connected instrument, such as the Audio Precision APx1701 Transducer Test Interface.

Why Pre-Polarized?

When compared to traditional, externally polarized microphones, pre-polarized systems offer a number of advantages. Specifically, pre-polarized mics offer a lower cost per channel (cabling, power supplies, and preamplifiers), are better suited to environments with changing, or high, humidity, and offer reduced set-up and test time owing to easy access to CCP power, interchangeability with other CCP sensors and measurement efficiency.

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