Portable recording devices debunked extravagant echo claims
Evidence
The extravagant claims for various echoes have died down within the last 50 or 75 years, which happens to correspond to the availability of convenient portable recording apparatus to verify them. — Eric J. Heller, Why You Hear What You Hear- An…, 2633
Categorization
- XREF: Echo verification connects to the general theme of how measurement technology disciplines perception claims. — connects to: A spectral flaw echoed across many speakers gets misattributed to the recording.
- corroborated: 2 independent passages support this claim — Eric J. Heller, Why You Hear What You Hear- An…, 2633