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Digital Audio extension for Audio Analyzer

NTiaudio-FX10009 November 2012 - NTi Audio is extending the functionality of the FLEXUS Audio Analyzer by adding a digital audio interface option, with AES3, AES3id, S/PDIF and TosLink functionality. It seamlessly integrates into the modular concept of the FLEXUS analyzer providing two digital inputs to the FX100 analyzer, as well as two outputs from the FX100's digital signal generator; with standard sampling rates up to 192 kHz and external synchronization feature.

The AES3 interface extension adds two digital analyzer inputs and two digital signal generator outputs, allowing testing digital audio equipment. The flexible structure of the FLEXUS Audio Analyzer & software offers a simple setup for connecting to analog-only, digital-only or mixed mode devices and applications or A/D converting devices.

The signal source may run either referenced to its own high precision oscillator or synchronized to a wide range of external clock references such as AES3 house clock, PAL/NTSC video clock or to the AES3 analyzer input sample rate.

Cross domain measurements

The digital interface and the standard two channel FX100 audio generator and analyzer operate together automatically within the FX-Control software environment, offering all meaningful measurements now across the analog or digital domain, supporting all kinds of cross-domain measurements such as A/A, A/D, D/A and D/D - all with the standard analyzer only. But if desired, by adding a two channel analog extension, the FLEXUS analyzer can also perform measurements with the two additional analog channels operating in parallel to the digital domain measurements if such simultaneous dual domain operation is required or desired.

Digital Audio interface measurements and settings

The sampling rate of the digital Generator can be set to any frequency between 28 kHz and 210 kHz. On the analyzer, fs is measured at the AES3 inputs and the sync input in parallel. Input and Output can be set to appropriate impedance interface settings, based on the chosen interface. Carrier and sync signal status, are constantly monitored. The channel status of the AES3 audio signal can be set and measured. The same applies for the resolution of the audio signal.

Together the Flexus Digital Audio Extension offers an efficient but low cost path for connecting the FX100 generator and analyzer to digital domain outputs and inputs.

www.nti-audio.com


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