Sound analysis apparatus for detecting sound sources

摘要

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.

主权项

1. A sound analysis apparatus comprising:
a sound information obtaining section that obtains information relating to a sound acquired by a plurality of sound acquiring sections that acquires the sound and distinguishes a spoken voice of a wearer from a spoken voice of another person, the plurality of sound acquiring sections being vertically separated from each other by a predetermined distance; a phase difference deriving section that derives a relationship between a frequency and a phase difference with respect to the sound acquired by the plurality of sound acquiring sections, and derives a distance between the wearer and the other person on a basis of the information relating to the sound acquired by the sound acquiring sections; a dispersion deriving section that derives a dispersion that is a level of irregularity of the phase difference derived by the phase difference deriving section; and a distance deriving section that derives the distance between the wearer and the other person using a first dispersion that is derived by the dispersion deriving section in a case where the sound is distinguished as the spoken voice of the other person and a second dispersion that is derived by the dispersion deriving section in a case where the sound is distinguished as the spoken voice of the wearer.