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The Federal Agencies Digital Guidelines Initiative (FADGI) Audio-Visual Working Group is seeking community feedback to help shape continued development of ADCTest<http://www.digitizationguidelines.gov/guidelines/digitize-ADCTest.html>. First released in April 2018 in collaboration with AVP and Christian Landone, ADCTest is an open source software application designed to facilitate performance testing of analog-to-digital converters (ADC) against FADGI's 2017 Audio Analog-to-Digital Converter Performance Specification and Test Method Guideline (Low Cost)<http://www.digitizationguidelines.gov/guidelines/digitize-audioperf-lowcost.html>.

ADCTest is not intended for absolute, high precision testing for the purpose of comparing the performance multiple ADCs, or analyzing nuanced aspects of ADC performance. Instead, its primary purpose is to provide users with a low-cost and simple test tool that will be employed routinely. Routine performance testing, even with lower performance test tools, enables the identification of significant failures, the relative comparison of ADCs in certain cases, and the ability to establish a benchmark for a given ADC to track trends in performance over time.

In keeping with FADGI's collaborative spirit, we've developed a short survey to help us prioritize future development for ADCTest: https://forms.gle/SfH92TJL8Hrwkr9AA. We have identified a few potential paths forward but other suggestions are welcome.

The survey will close on October 8, 2019 (after the IASA and JTS 2019 conferences) and we'll report back about next steps in the coming months.

Thank you in advance for your consideration, Kate

Kate Murray
Digital Collections Management & Services
Library of Congress
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202-707-4894