This report synthesises findings from 3 peer-reviewed papers addressing the following research question: How does the performance gap between OpenPangu-7B-MLA and prosody-exclusive models on EchoMind vary across different noise levels when measured by classification accuracy. 8 claims were extracted from source literature; 8 were independently verified against retrieved documents. An automated multi-reviewer quality assessment produced a score of 8.7/10. This report is a machine-generated literature synthesis and does not constitute original research.Research goal: How does the performance gap between OpenPangu-7B-MLA and prosody-exclusive models on EchoMind vary across different noise levels when measured by classification accuracy?Autonomous literature synthesis. Automated review score: 8.7/10. Full text and citation available at Assignee Research.