Abstract: An information processing device includes a first information processing unit, a communication unit, and a control unit. The first information processing unit performs predetermined information processing on input data to generate first processing result data. The communication unit is capable of receiving second processing result data generated by a second information processing unit capable of executing the same kind of information processing as the information processing on the input data under a condition with higher versatility. The control unit selects either the first processing result data or the second processing result data according to the use environment of the device.

Abstract: A voice enhancement device includes: a sound receiving unit configured to receive an audio signal; a vehicle state monitor unit configured to monitor a vehicle state; a noise estimation unit configured to estimate a noise component for each frequency component using a cumulative histogram created by accumulating frequency of power of the audio signal received by the sound receiving unit for each frequency component; and a voice enhancer configured to suppress the noise component for each frequency component estimated by the noise estimation unit in the received audio signal, wherein the noise estimation unit resets the cumulative histogram on the basis of a monitoring result of the vehicle state monitor unit.

Abstract: An acoustic processing apparatus includes a sound source localization unit configured to estimate a direction of a sound source from an acoustic signal of a plurality of channels, a sound source separation unit configured to perform separation into a sound-source-specific acoustic signal representing a component of the sound source from the acoustic signal of the plurality of channels, and a sound source identification unit configured to determine a type of sound source on the basis of the direction of the sound source estimated by the sound source localization unit using model data representing a relationship between the direction of the sound source and the type of sound source, for the sound-source-specific acoustic signal.

Abstract: A voice processing apparatus includes: a sound input unit configured to acquire an audio signal; a voice recognition unit configured to perform voice recognition on the audio signal acquired by the sound input unit; an intention understanding unit configured to understand a user's intention on the basis of a recognition result recognized by the voice recognition unit; and a question unit configured to question the user on the basis of an understood result understood by the intention understanding unit. The question unit changes question content for the user according to the understood result and a predetermined priority.

Abstract: A sound source localization device, which has a plurality of sound pickup devices which record a sound signal and specifies a direction of a sound source based on sound signals recorded by at least two sound pickup devices of the sound pickup devices, includes a notification device that notifies information based on an arrangement of the sound pickup devices.

Abstract: A voice processing apparatus includes: a feature amount acquisition unit configured to acquire a spectrum of an audio signal for each frame; an utterance state determination unit configured to determine an utterance state for each frame on the basis of the audio signal; and a spectrum normalization unit configured to calculate a normalized spectrum in a current utterance by normalizing a spectrum for each frame in the current utterance using at least an average spectrum acquired until the present time.

Abstract: A transfer function calculation unit is configured to calculate a transfer function from a sound source installed in a predetermined target direction to each microphone of a microphone array, and a determination unit is configured to determine whether or not the microphone array is normal on the basis of a difference amount between a transfer function to each microphone and a predetermined ideal transfer function to each microphone.

Abstract: A reception system includes: an imaging unit that captures an image; a reception information storage unit that stores an image of a visitor who visited in the past and information of a receiving person whom the visitor visited in the past in an associated manner; and an action performing unit that generates a question to the visitor based on a scenario regarding a response to the visitor and acquires information via a response to the question from the visitor, wherein the action performing unit changes a response presented to the visitor based on the scenario depending on whether or not the reception information storage unit stores an image that corresponds to the image captured by the imaging unit.

Abstract: A reception system includes: a visitor recognition unit that recognizes a visitor; a receiving person recognition unit that recognizes a receiving person that corresponds to the visitor; a receiving person contact information storage unit that stores contact information of the receiving person; a notification unit that notifies the receiving person of a visit of the visitor at the contact information of the receiving person stored by the receiving person contact information storage unit; and a receiving person selection unit that selects a substitute receiving person associated with the receiving person in a case where the receiving person is absent when the notification unit notifies the receiving person at the contact information of the receiving person, wherein the notification unit notifies the substitute receiving person selected by the receiving person selection unit when the receiving person is absent.

Abstract: A voice recognizing portion recognizes a voice and generates a phoneme string, and a storage portion stores a first name list indicating phoneme strings of first names and a second name list obtained by associating a phoneme string of a predetermined first name among the first names with a phoneme string of a second name similar to the phoneme string of the first name. A name specifying portion specifies a name indicated by the voice on the basis of the first name list. A checking portion selects a phoneme string of a second name corresponding to a phoneme string of the name specified by the name specifying portion by referring to the second name list when a user answers that the name specified by the name specifying portion is not the correct name.

Abstract: An acoustic processing device includes: a sound pickup unit configured to record an acoustic signal; a motion detection unit configured to detect the motion of the device; a self-localization unit configured to estimate the position of the device based on the acoustic signal and the motion; and a use determination unit configured to determine whether or not to use the acoustic signal in a sound source localization unit detecting the position of a target sound source to be detected based on the intensity of a reference signal incoming from a reference sound source determined in advance.

Abstract: A speech recognition apparatus includes: a sound collection unit that collects a sound signal; a sound source localization unit that calculates a spatial spectrum from the sound signal that is collected by the sound collection unit and uses the calculated spatial spectrum to perform sound source localization; a speech zone determination unit that determines a zone in which a power of the spatial spectrum that is calculated by the sound source localization unit exceeds a predetermined threshold value based on a vehicle state; and a speech recognition unit that performs speech recognition with respect to a sound signal of the zone determined by the speech zone determination unit.

Abstract: A conversation support apparatus includes: a speech input unit configured to input speech signals of two or more users; a speech recognizing unit configured to recognize the speech signals input from the speech input unit; a display unit configured to display the recognition results of the speech recognizing unit; and an image processing unit configured to set display areas respectively corresponding to the users into an image display area of the display unit.

Abstract: A sound processing device includes a sound collection unit configured to record a sound signal, a tilt information acquisition unit configured to acquire tilt information on a tilt of the sound processing device, an azimuth estimation unit configured to estimate azimuths of a sound source in a plane in which the sound collection unit is arranged based on the sound signals which are recorded by the sound collection unit at least at two times; and an elevation angle estimation unit configured to estimate an elevation angle of the sound source with respect to the plane in which the sound collection unit is arranged based on the tilt information acquired by the tilt information acquisition unit and the azimuths estimated by the azimuth estimation unit at least at two times.

Abstract: A speech processing device includes a distance acquisition unit configured to acquire a distance between a sound collection unit configured to record speech from a sound source and the sound source, a reverberation characteristic estimation unit configured to estimate a reverberation characteristic based on the distance acquired by the distance acquisition unit, a correction data generation unit configured to generate correction data indicating a contribution of a reverberation component from the reverberation characteristic estimated by the reverberation characteristic estimation unit; and a dereverberation unit configured to remove the reverberation component from the speech by correcting the amplitude of the speech based on the correction data.

Abstract: An autonomous action robot includes: a sound acquisition unit that acquires an acoustic signal; a sound source localization unit that estimates a direction of a sound source with respect to the acoustic signal; a distance measurement unit that performs measurements related to distance for a predetermined range; a map information generation unit that generates two-dimensional map information and that estimates a self-location of the autonomous action robot, using information of the distance; a sound source direction determination unit that re-estimates the direction of the sound source based on the two-dimensional map information, the estimated self-location information, and the estimated sound source direction; an action generation unit that generates an action plan based on the two-dimensional map information and the sound source direction estimated by the sound source direction determination unit; and a control unit that controls the autonomous action robot according to the action plan.

Abstract: A speech-processing apparatus includes: a sound source localization unit that localizes a sound source based on an acquired speech signal; and a speech zone detection unit that performs speech zone detection based on localization information localized by the sound source localization unit.

Abstract: A speech-processing apparatus includes: a representative transfer function estimation unit that uses a sound signal which is collected by using a microphone array of which the arrangement is unknown, which has a plurality of channels, and of which the number of sound sources is unknown and that estimates a transfer function with respect to a sound source.

Abstract: A voice processing apparatus includes: a feature amount acquisition unit configured to acquire a spectrum of an audio signal for each frame; an utterance state determination unit configured to determine an utterance state for each frame on the basis of the audio signal; and a spectrum normalization unit configured to calculate a normalized spectrum in a current utterance by normalizing a spectrum for each frame in the current utterance using at least an average spectrum acquired until the present time.

Abstract: A voice processing apparatus includes: a sound input unit configured to acquire an audio signal; a voice recognition unit configured to perform voice recognition on the audio signal acquired by the sound input unit; an intention understanding unit configured to understand a user's intention on the basis of a recognition result recognized by the voice recognition unit; and a question unit configured to question the user on the basis of an understood result understood by the intention understanding unit. The question unit changes question content for the user according to the understood result and a predetermined priority.