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QA403 Audio Analyzer Tutorial (Noise, SNR, THD+N, ...) - Phil's Lab #130

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How to measure noise floor, signal-to-noise ratio, total harmonic distortion, frequency response, and more of an audio electronic system using the QA403 audio analyzer. PCBs by PCBWay [SUPPORT] Hardware design courses: Course content: Patreon: [GIT] [SOCIAL] Instagram: [LINKS] QA403: Audio system measurements: Noise floor and SNR: #:~:text=In audio engineering, the noise,wireless interference, and equipment noise. THD( N): A-Weighting: Mixed-signal hardware tips: Mixed-signal hardware walkthrough: [TIMESTAMPS] 00:00 Introduction 01:16 QA403 Overview 02:13 PCBWay 03:02 Hardware Overview 04:12 Firmware Configuration 05:26 Test Set-Up 06:14 QA40x Software 08:40 RMS dBV dBu 10:37 Noise Floor 13:56 Common Reference 14:51 Noise Floor (continued) 16:14 SNR 19:59 Frequency Response 22:24 THD N 26:04 Automated Tests 27:03 Weighting 29:48 Outro

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