The APx515 driver for LabVIEW

September 28, 2015 | 00:42
The APx515 Audio Analyzer also available in LabVIEW
The APx515 Audio Analyzer also available in LabVIEW
Audio Precision recently announced the release of their latest Data Acquisition (DAQ) driver for National Instrument’s LabVIEW suite. The APx515 DAQ driver allows theAPx515 two-channel DC to 90 kHz audio analyzer to be integrated into a LabVIEW-based measurement environment. Its collection of virtual instruments (a function or program created in LabVIEW) take care of hardware initialization and configuration of instrument settings including input and output channels, sample rates, trigger conditions, signal generation, and signal acquisition. The driver is based on a low-level C++ measurement library and is said to occupy a small memory footprint.

The APx515 DAQ driver’s feature set includes support for the LabVIEW waveform data type, arbitrary waveform generation and waveform acquisition. In addition, the APx DAQ driver has audio test functionality including two independent sine wave generators; optional dither for digital signal generation; high- and low-pass input filters; input signal weighting filters and a wide range of meters for audio metrics. These features allow LabVIEW users to make industry standard audio measurements while eliminating the need for them to develop their own analysis routines.

As well as audio applications, its DC to 90 kHz bandwidth makes the instrument suitable for testing applications such as vibration analysis, acoustic intensity, ultrasound, infrasound, analysis of dynamic signals (e.g., force, pressure, strain) and power supply quality.

Dave Schmoldt, Audio Precision CEO said “With the APx515 analyzer already renowned worldwide for precision and reliability in production test environments our new DAQ driver allows LabVIEW users a fast path to incorporate that instrument into their LabVIEW-based measurement systems, whether audio-focused or not.”
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