Fact · Dictation
A 1996 study says that the performance of a speech recognition system degrades rapidly in the presence of ambient noise.
Checked against its source on October 16, 2026
In the source's own words
“The performance of speech recognition system degrades rapidly in the presence of ambient noise.”
Lombard effect compensation and noise suppression for noisy Lombard speech recognition, Sang-mun Chi and Yung-Hwan Oh, International Conference on Spoken Language Processing (ICSLP) 1996, ISCA Archive, 1996, Abstract.
Open the original- What it measures
- The sentence opens the abstract. The authors then model the Lombard effect, the way speakers raise their voices and change their speech in noise, and compensate for it.
- What it does not show
- A statement from a 1996 system and a small Korean vocabulary. It supports the direction of the effect, not a current error rate.
Source
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