EAA 4-2-1 Embedded Audio Analyzer

What you hear and how people hear you constitute an important part of the user experience of electronic devices. Audio measurement and analysis is usually performed with multiple data acquisition cards and extensive cabling which may result in signal interferences and unreliable test results. Additionally only raw data is usually transferred to computer for analysis which loads the computer system heavily

With EAA 4-2-1 audio testing is comprehensive and easy.

Audio performance test

Audio line test

Digital audio test

Microphone test

Speaker test

WHAT IS IT WHERE’S THE BENEFIT

EAA 4-2-1 is an embedded audio analyzer with built- One test instrument instead of multiple data in analysis functions. Raw data is analyzed within the acquisition cards and cabling provides a more reliable unit, and only the measurement results are transferred and cost-efficient audio test solution. to computer. Minimized signal interferences guarantee more A very compact size enables integrating the analyzer reliable test results and overall product quality. in various environments where it can be used close to the signal source in order to prevent signal EAA 4-2-1 comes with an easy-to-use desktop interferences. application for audio test design and analysis.

EAA 4-2-1 can be integrated in Chameleon test Built-in analysis functions reduce the computer system platforms and other test environments, or it can be load and overall testing time. used a s a stand-alone measurement device.

TECHNICAL DETAILS TEST FEATURES Dimensions (l x d x h) Audio input Voltage measurement range 105x123x44mm (4.13x4.84x1.73in) • Amplitude measurements • ±4.5V-±45V Operating temperature (RMS, Vp, Vpp and dBu) Digital IO interface 15-35⁰C (59-95⁰F) • Frequency Digital audio SPDIF Audio inputs 4pcs • Total harmonic distortion + • Balanced 4dBu signal level, noise (THDN) USE CASES 24bit • Fast fourier transform (FFT) Audio performance test Audio outputs 2pcs with available raw data Audio line test • Balanced 4dBu signal level, • Analog to digital conversion Digital audio test 24bit (ADC) with available raw Microphone test Up to 4 digital microphone inputs data Speaker test (PDM) • Peak values Voltage measurement Audio Output 4 IO lines • Single tone Controlling via LAN • Dual tone NI sbRIO digital board • Multi tone CE safety compliant • Noise • Chirp • Wav file

Processor Board, sbRIO Analog Board

FPGA Audio CPU I2S ADC DRAM

DC SPI ADC

Audio I2S DAC

Digital IO

EAA 4-2-1 Functional Diagram

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