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Automatic Speech Recognition on CHiME-6 (dev)

26WER (%)G-Augment
24.8432.6740.548.33Apr 22, 2020Apr 22, 2021Apr 23, 2022Apr 23, 2023Apr 23, 2024Apr 23, 2025Apr 24, 2026

Evaluation results

MethodLinks
G-AugmentModel Scale=ConformerXXL, Pre-training Data Settings=Any2022.1026————
ConformerXXL-RNNT-PPre-training=YT-U, Upstream=SpeechStew2021.0926.2————
ConformerXXL-RNNT-PSPre-training=YT-U, Upstream=YT-T2021.0926.2————
Previous SOTAModel Scale=ConformerXXL, Pre-training Data Settings=Any2022.1026.2————
G-AugmentModel Scale=ConformerXXL, Pre-training Data Settings=Public2022.1030.9————
G-AugmentModel Scale=ConformerL, Pre-training Data Settings=Standard2022.1031.7————
ConformerXXLPre-training=Libri-Light, Upstream=SpeechStew2021.0931.9————
Previous SOTAModel Scale=ConformerXXL, Pre-training Data Settings=Public2022.1031.9————
Previous SOTAModel Scale=ConformerL, Pre-training Data Settings=Standard2022.1033.1————
Hybrid systemlanguage_model=AWD-LSTM-LM2020.0433.8————
ConformerXXL-RNNT-PPre-training=YT-U2021.0935.1————
Hybrid systemlanguage_model=n-gram LM2020.0436.8————
HMM (SOTA)2021.0936.9————
WavLM + HuBERT (DCA)SSL Model=WavLM + HuBERT, Fusion Method=DCA, Total Params (M)=676.5, Trainable Params (M)=44.4, Encoder=E-Branchformer2026.0443————
GPU-accelerated GSSCompute Hardware=4 x V100, Channels=all available, Context duration=15s, BSS iterations=202022.1244.21.35.3292.243.1
Original GSSCompute Hardware=80 x Xeon, Channels=all available, Context duration=15s, BSS iterations=202022.1244.719.31,542.6143.5
WavLM + HuBERT (LP + FRL, epsilon=0.6)SSL Model=WavLM + HuBERT, Fusion Method=LP + FRL, epsilon (ϵ)=0.6, Total Params (M)=668.9, Trainable Params (M)=36.8, Encoder=E-Branchformer2026.0445.3————
WavLMSSL Model=WavLM, Total Params (M)=352.1, Trainable Params (M)=36.7, Encoder=E-Branchformer2026.0445.4————
WavLM + HuBERT (LP + FRL, epsilon=0.4)SSL Model=WavLM + HuBERT, Fusion Method=LP + FRL, epsilon (ϵ)=0.4, Total Params (M)=668.9, Trainable Params (M)=36.8, Encoder=E-Branchformer2026.0445.9————
WavLM + HuBERT (LP + FRL, epsilon=0.2)SSL Model=WavLM + HuBERT, Fusion Method=LP + FRL, epsilon (ϵ)=0.2, Total Params (M)=668.9, Trainable Params (M)=36.8, Encoder=E-Branchformer2026.0446————
WavLM + HuBERT (LP)SSL Model=WavLM + HuBERT, Fusion Method=LP, Total Params (M)=668.9, Trainable Params (M)=36.8, Encoder=E-Branchformer2026.0446.2————
WavLM + HuBERT (LP + FRL, epsilon=0.0)SSL Model=WavLM + HuBERT, Fusion Method=LP + FRL, epsilon (ϵ)=0.0, Total Params (M)=668.9, Trainable Params (M)=36.8, Encoder=E-Branchformer2026.0448.4————
RNN-Tenhancement=train_gss + dev_gss242020.0449————
CHIME-6 TDNN-F baselinemodel=CHIME-6 TDNN-F baseline2020.0451.7————
HMM Baseline2021.0951.8————
RNN-Tenhancement=train_gss + dev_gss122020.0452.6————
WavLM + HuBERT (Co-Attention)SSL Model=WavLM + HuBERT, Fusion Method=Co-Attention [20], Total Params (M)=668.9, Trainable Params (M)=36.9, Encoder=E-Branchformer2026.0454————
RNN-Tenhancement=dev_gss122020.0455————