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Subjective Speech Evaluation Prediction on FDX-Conv (out-of-domain)

0.532Pearson CorrelationHuman Inter-Rater Consistency (Oracle)
0.124320.230160.3360.44184Feb 14, 2026

Evaluation results

MethodLinks
Human Inter-Rater Consistency (Oracle)Input=Speech2026.020.5320.4890.336
GSRMInput=Speech2026.020.4650.4270.23
Acoustic Feature Prompting (GPT-4o)Input=Text2026.020.2770.2140.317
UTMOSv2 (Min MOS)Input=Speech2026.020.2450.2442.815
AES-based RegressorInput=Speech2026.020.2360.2240.265
NISQA (Min MOS)Input=Speech2026.020.2290.2121.066
WavLLM-based RegressorInput=Speech2026.020.2220.2120.275
UTMOSv2 (Mean MOS)Input=Speech2026.020.1960.210.442
Acoustic Feature Prompting (Gemini)Input=Text2026.020.1930.1570.814
NISQA (Mean MOS)Input=Speech2026.020.1640.1471.197
Speech Prompting (Gemini)Input=Speech2026.020.140.1360.531