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CHiME6 errors are about 9.4 times the clean rate

Fact · Dictation

9.4times

Whisper Large V2 has about 9.4 times the word error rate on CHiME6 that it has on LibriSpeech Clean.

Checked against its source on October 16, 2026

How it is calculated: 25.5 / 2.7 = 9.44, rounded to 9.4

Calculated from

On the CHiME6 test set, Whisper Large V2 had a word error rate of 25.5 percent.
On the LibriSpeech Clean test set, Whisper Large V2 had a word error rate of 2.7 percent.

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CHiME6 errors are about 9.4 times the clean rate | Yap