Patent · US Active

Direct field acoustic testing in a semi-reverberant enclosure

US10317373B2 · kind B2 · utility

8Cited by
15References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 15, 2013
Grant dateJun 11, 2019
Priority date—
Expiry dateOct 15, 2033

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04R5/02
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An acoustic testing system includes at least four control microphones, at least four acoustic transducers, an acoustic enclosure with pre-determined reverberant characteristics which contains the at least four control microphones and the at least four acoustic transducers, a control system configured to produce a predetermined acoustic field as measured by the at least one control microphone. A unit under test is also disposed within the acoustic enclosure. Using an acoustic enclosure with pre-determined reverberant characteristics results of the increased proportion of reflected sounds in the area proximate to the unit under test such that less power is required to achieve a given acoustic test level than in a purely direct field acoustic test.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.