Skip to content

Fact · Dictation

10.4percentage points

The best reported comma F1 is 10.4 percentage points lower on speech recognition output than on reference text.

Checked against its source on October 16, 2026

How it is calculated: 76.7 - 66.3 = 10.4

Calculated from

On the reference (correct) transcript of the IWSLT 2011 English benchmark, the best reported comma F1 was 76.7%.
On speech recognition output from the IWSLT 2011 English benchmark, the best reported systems reached 66.3% F1 for commas.

Cited on

Dictation Punctuation: How to Say Commas, Periods and MoreGuide

Comma F1 drops about 10 points on speech recognition output | Yap