Audio Precision Launches APx555 Audio Analyzer

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Audio Precision Launches APx555 Audio Analyzer

Sep 26, 2014 11:14 AM

BEAVERTON, ORE.� Test equipment manufacturer Audio Precision introduces the APx555.

Leveraging the modular architecture and software of the APx family, the APx555 delivers improved measurement accuracy, speed, flexibility, automation and ease-of-use for developers of audio components, equipment and systems.

With a typical residual THD+N of -120 dB (conservatively specified at -117 dB), the two analog channels of the APx555 boast low noise and distortion, allowing sensitive measurements to be made with assurance. This performance is coupled with 1MHz bandwidth (mono) and an industry-leading FFT resolution of 1.2 million points. The generator is capable of producing low distortion sine wave signals up to 204 kHz, at high-level amplitudes up to 26 Vrms.

Audio Precision is also releasing the new APx500 v4.0 software, which provides a multi-mode user interface for the APx analyzer family. The software enables easy switching between Sequence Mode and Bench Mode, a SYS-2700 series-inspired approach that delivers real-time feedback of any selected parameters, including waveform scope, FFT spectrum, levels, frequency, THD+N, and more.

�Bench Mode offers more visibility into real-time behaviors,� said Eric Cline, engineering technician at Analog Devices. �Being able to see everything at once is a huge deal � distortion, noise, and signal level on meters is incredibly important. It definitely answers my requests, offering the best of both of worlds. You have the APx ease-of-use, but can still have all the measurements, all on one screen, when you need it.�

AES3 and S/PDIF are standard to the APx555, with the instrument also supporting the range of APx options, allowing native connectivity and analysis of audio via Bluetooth, HDMI, Digital Serial (I2S, TDM) and PDM (1-bit oversampled) formats. The APx555 provides a full range of AES3 and S/PDIF digital output impairments, including jitter generation and analysis. A new Advanced Master Clock handles input and output clock signals to synchronize the APx555 with external equipment.

The APx series uses a modular architecture that supports a wide range of digital I/O.


Audio Precision Releases Software v4.1

Version 4.1 of Audio Precision's APx500 audio test software adds a number of enhancements, including support for full input bandwidth across all channels of APx555, APx525 (with option BW52) and APx586 audio analyzer