Microphone calibration compensation from coupler transfer function
US9986940B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
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Inventor
Key dates
| Filing date | Apr 21, 2017 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Apr 21, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0431
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a method and system for determining the sensitivity of a first microphone, the method comprising providing an acoustic coupler having at least one internal cavity configured such that a sound field can be generated within the cavity, the cavity being further in acoustic communication with a reference microphone configured to measure the reference sound pressure at a given position in said cavity, the cavity being further provided with an inlet opening configured to establish acoustic communication between the sound inlet of said first microphone, the sensitivity of which is to be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.