trustmebro.to/r/…
✓ checked
trust me, bro:
here is the receipt.
the claim

Humans can hear frequencies above 20,000 Hz.

the verdict
CONTESTED PARTIAL
Recorded sources
1 source for · 5 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that humans can hear frequencies above 20,000 Hz?

Partly. Most reference sources place the human hearing limit at about 20,000 Hz and state that frequencies above that are inaudible, while one source cites a study reporting that a minority of people can hear up to about 28 kHz at high loudness. The evidence thus partly supports each side rather than settling the claim.

Verdict: CONTESTED PARTIAL · 1 source for, 5 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 1
Can humans perceive sounds above 20 kHz?
Get citation
Can humans perceive sounds above 20 kHz?. (n.d.). biology.stackexchange.com. https://biology.stackexchange.com/questions/27898/can-humans-perceive-sounds-above-20-khz

Evidence against · 5
Hearing range - Wikipedia
Get citation
Hearing range - Wikipedia. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Hearing_range

See more details
More against · 4
Glencoe Physical iScience, Grade 8, Reading Essentials, Student Edition
2004
Get citation
Hill, M. (2004). Glencoe Physical iScience, Grade 8, Reading Essentials, Student Edition. books.google.com. http://books.google.com/books?id=cvvdh1kfm-8C&dq=Humans+can+hear+frequencies+above+20,000+Hz.&hl=&as_pt=BOOKS&source=gbs_api

Bionics for the Evil Genius
2006
Get citation
Braga, N. C. (2006). Bionics for the Evil Genius. books.google.com. http://books.google.com/books?id=g0JaAAAAYAAJ&dq=Humans+can+hear+frequencies+above+20,000+Hz.&hl=&as_pt=BOOKS&source=gbs_api

Architectural Acoustics Design Guide
2000
Get citation
Cowan, J. P. & (Firm), A. (2000). Architectural Acoustics Design Guide. books.google.com. http://books.google.com/books?id=dyxUAAAAMAAJ&dq=Humans+can+hear+frequencies+above+20,000+Hz.&hl=&as_pt=BOOKS&source=gbs_api

colliersencyclop0018will c4x3
Get citation
colliersencyclop0018will c4x3. (n.d.). archive.org. https://archive.org/details/colliersencyclop0018will_c4x3

Receipt History
held for human review17 Oct 2026
Anyone with this link can read the claim and its public receipt, including any personal information in that text. Open permanent receipt.
Check your own claim
Challenge the receipt
Requests are recorded for review. This does not start an automatic check or guarantee a response time.

Citation formatting by citeproc-js (Frank Bennett) and the Citation Style Language project. Source and licenses.

This receipt is an automated verdict against our published method · not an opinion about any author or publication.
Terms · Privacy · How verdicts work