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Automatic Speech Recognition on ATCO2 (test)

24.18WER (Synth-only)VC
22.614433.182243.7554.3178Jun 19, 2026

Evaluation results

MethodLinks
VCCategory=Voice Conversion, AAS=true2026.0624.1822.54
VCCategory=Voice Conversion, AAS=false2026.0626.4622.45
ACL1→L2 + VC + TTSCategory=Synthetic Mix, AAS=true, Target Accent=L2-ARCTIC, VC (L1→L2)=Yes2026.0628.0522.91
ACL1→L2 + TTSCategory=Synthetic Mix, AAS=true, Target Accent=L2-ARCTIC, VC (L1→L2)=Yes2026.0628.921.69
ACL1→L2Category=Accent Conversion, AAS=true, Target Accent=ATCO2, VC (L1→L2)=Yes2026.0631.422
ACL1→L2Category=Accent Conversion, AAS=true, Target Accent=L2-ARCTIC, VC (L1→L2)=Yes2026.0631.4821.95
ACL1→L2 + VCCategory=Synthetic Mix, AAS=true, Target Accent=L2-ARCTIC, VC (L1→L2)=Yes2026.0632.222.07
ACL1→L2Category=Accent Conversion, AAS=true, Target Accent=L2-ARCTIC, VC (L1→L2)=No2026.0632.9622.16
TTSCategory=Speech Synthesis, AAS=true2026.0633.7721.69
ACL1→L2Category=Accent Conversion, AAS=true, Target Accent=ATCO2, VC (L1→L2)=No2026.0633.8422.6
VC + TTSCategory=Synthetic Mix, AAS=true2026.0634.3922
ACL1→L2Category=Accent Conversion, AAS=false, Target Accent=L2-ARCTIC, VC (L1→L2)=Yes2026.0638.2221.64
ACL2→L1Category=Accent Conversion, AAS=true2026.0641.625.92
TTSCategory=Speech Synthesis, AAS=false2026.0653.8822.9
Out-of-the-boxCategory=Baseline2026.0663.32—
Fine-tuning with real data onlyCategory=Baseline2026.06—22.69