2.7.2.1. Video: How to Analyze Your Pronunciation with Audio - YouTube - https://www.youtube.com/watch?v=5hC6bRLr1PU

2.7.2.2. Video: Pronunciation Self-Assessment with Recording - YouTube - https://www.youtube.com/watch?v=3k7jN4kX4U

2.7.2.3. Article: How to Use Audio Analysis to Improve Pronunciation - Speech Active - https://www.speechactive.com/audio-analysis-pronunciation/

2.7.2.4. Article: Pronunciation Feedback Techniques - Pronunciation Studio - https://pronunciationstudio.com/pronunciation-feedback/