Sound analysis apparatus for detecting sound sources
US9177556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2013 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Oct 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/51
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sound analysis apparatus includes a sound information obtaining section chat obtains information relating to a sound acquired by a sound acquiring section that acquires the sound and distinguishes a spoken voice of a wearer from a spoken voice of another person, a phase difference deriving section that derives a relationship between a frequency and a phase difference with respect to the sound acquired by the plural sound acquiring sections, a dispersion deriving section that derives a dispersion that is the level of irregularity of the derived phase difference, and a distance deriving section that derives a distance between the wearer and the other person using a first dispersion derived in a case where the sound is distinguished as the spoken voice of the other person and a second dispersion derived in a case where the sound is distinguished as the spoken voice of the wearer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.