Fact · Dictation
Wikipedia says that noise-canceling microphones of this design have at least two sound ports, a front port aimed at the desired sound and a more distant port.
Checked against its source on October 16, 2026
In the source's own words
“All such microphones have at least two ports through which sound enters; a front port normally oriented toward the desired sound and another port that's more distant”
Noise-canceling microphone, Wikipedia, the free encyclopedia, n.d., Technical details section.
Open the original- What it measures
- The technical details section of the English Wikipedia article on noise-canceling microphones, read on 2026-10-16. It describes the differential microphone design these devices use.
- What it does not show
- A description of the design principle. It does not show how well any particular product rejects room noise.