AUDIO PROCESSING APPARATUS AND AUDIO PROCESSING METHOD

摘要

An audio processing apparatus includes a first-section detection unit configured to detect a first section that is a section in which the power of a spatial spectrum in a sound source direction is higher than a predetermined amount of power on the basis of an audio signal of a plurality of channels, a speech state determination unit configured to determine a speech state on the basis of an audio signal within the first section, a likelihood calculation unit configured to calculate a first likelihood that a type of sound source according to an audio signal within the first section is voice and a second likelihood that the type of sound source is non-voice, and a second-section detection unit configured to determine whether or not a second section in which power is higher than average the power of a speech section is a voice section on the basis of the first likelihood and the second likelihood within the second section.

主权项

1. An audio processing apparatus comprising:
a first-section detection unit configured to detect a first section that is a section in which a power of a spatial spectrum in a sound source direction is higher than a predetermined amount of power on the basis of an audio signal of a plurality of channels; a speech state determination unit configured to determine a speech state on the basis of an audio signal within the first section; a likelihood calculation unit configured to calculate a first likelihood that a type of sound source according to an audio signal within the first section is voice and a second likelihood that the type of sound source is non-voice; and a second-section detection unit configured to determine whether or not a second section in which power is higher than an average power of a speech section is a voice section on the basis of the first likelihood and the second likelihood within the second section.