Update README.md

README.md

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-A pioneering Fine-grained Multi-dimensional Speech Understanding Benchmark. Comprising over 20,000 bilingual instances, FMSU-Bench systematically covers 14 distinct speech dimensions structured into a comprehensive 5-tier taxonomy: Speaker Demographics, Acoustic-Prosodic Features, Affective and Semantic Reasoning, Acoustic Scene Analysis, Linguistic-Paralinguistic Integration.
+Existing benchmarks predominantly cater to macroscopic tasks and suffer from coarse annotation granularity. We construct **FMSU-Bench**, a pioneering Fine-grained Multi-dimensional Speech Understanding Benchmark.
+* **Scale & Scope:** Comprises over **24,000 bilingual instances** (Chinese/English), manually verified by domain experts.
+* **Comprehensive Taxonomy:** Systematically covers **14 distinct speech dimensions** structured into a 5-tier taxonomy:
+  1. *Speaker Demographics:* Gender, Age, Accent
+  2. *Acoustic-Prosodic Features:* Pitch, Speaking Rate, Rhythm, Voice Texture
+  3. *Affective and Semantic Reasoning:* Emotion, Tone, Contextual Inference
+  4. *Acoustic Scene Analysis:* Background Sound, Acoustic Environment
+  5. *Linguistic-Paralinguistic Integration:* Paralinguistic Events, Transcription with Paralinguistic Tags (Evaluated via our novel **PATA** metric).