Abstract:
An authentification device includes: an acquisition unit configured to acquire and detect a voice signal of an utterance voice of a speaker; an authentication unit configured to authenticate whether the speaker is the person himself/herself based on collation between the voice signal detected by the acquisition unit and a database; a storage unit configured to store, as question example sentences, a plurality of questions for acquiring a voice signal used for authentication of the speaker by the authentication unit; a display interface configured to display the question example sentence for the speaker on a terminal device; and an example sentence selection unit configured to select a question example sentence to be displayed on the terminal device from the plurality of question example sentences stored in the storage unit.
Abstract:
A sound crosstalk suppression device includes: a speaker analysis unit configured to analyze a speaker situation in a closed space based on voice signals respectively collected by a plurality of microphones arranged in the closed space; a filter update unit that includes a filter configured to generate a suppression signal of a crosstalk component included in a voice signal of a main speaker, that is configured to update a parameter of the filter, and that is configured to store the updated parameter in a memory; a reset unit configured to reset the parameter of the filter in a case where it is determined that an analysis result of the speaker situation is switched; and a crosstalk suppression unit configured to suppress a crosstalk component by using a suppression signal.
Abstract:
An acoustic crosstalk suppression device includes a speaker estimation unit configured to estimate a main speaker based on voice signals collected by n units of microphones corresponding to n number of persons (n: an integer equal to or larger than 3); n units of filter update units each of which is configured to update a parameter of a filter configured to generate a suppression signal of a crosstalk component included in a voice signal of the main speaker; and a crosstalk suppression unit configured to suppress the crosstalk component by using a synthesis suppression signal generated by the maximum (n-1) units of filter update units corresponding to reference signals collected by the maximum (n-1) units of microphones.
Abstract:
An acoustic noise suppressing apparatus outputs a first suppression audio signal in which the acoustic noise is suppressed by subtracting a first pseudo noise signal from the picked up audio signal, the first pseudo noise signal being generated based on a first delay signal and a first filter updated by a first algorithm which is valid when a plurality of talkers are talking, and outputs a second suppression audio signal in which the acoustic noise is suppressed by subtracting a second pseudo noise signal from the picked up audio signal, the second pseudo noise signal being generated based on a second delay signal and a second filter updated by a second algorithm which is valid when one talker is talking. The apparatus outputs a suppressed one of the first suppressed audio signal or the second suppressed audio signal.
Abstract:
A service monitoring system includes a voice collector that collects a voice of an employee in a predetermined voice collection region, a storage unit that stores service event data including determination conditions for each predetermined service event, terminal operation history data indicating an operation history of an employee on a predeteHnined business terminal and voice data of the employee in correlation with each other, a detector that detects the service event of the employee based on the service event data and the terminal operation history data, a calculator that calculates a service speech evaluation value corresponding to a predetermined speech keyword on the basis of the voice data of the employee during the service event, and an output that stores the service speech evaluation value in correlation with identification information of the employee, and voice data of the employee specified by a service position and time point of the employee.
Abstract:
A voice registration device includes an acquisition unit configured to acquire a voice signal of an utterance voice of a speaker, an emotion identification unit configured to identify at least one type of emotion of the speaker included in the voice signal, and a registration unit configured to register a voice signal for the each type of emotion in a database based on an identification result by the emotion identification unit.
Abstract:
A sound processing apparatus includes n number of microphones that are disposed correspondingly to n number of persons and that mainly collect sound signals uttered by respective relevant persons, a filter that suppresses crosstalk components included in a talker sound signal collected by a microphone corresponding to at least one talker using the sound signals collected by the n number of microphones, a parameter updater that updates a parameter of the filter for suppressing the crosstalk components and stores an update result in the memory in a case where a predetermined condition including time at which at least one talker talks is satisfied, and a sound output controller that outputs the sound signals, acquired by subtracting the crosstalk components by the filter from the talker sound signals based on the update result, from a speaker.
Abstract:
A sound collecting control apparatus includes: a vehicle stop detector; a noise source direction specifier to specify a direction from the sound collector to a noise source of the vehicle stopped at the predetermined position; a search beam former that forms a plurality of search beams in the direction of the noise source specified by the noise source direction specifier and around the direction of the noise source so as to search for a sound source of a voice of a speaker in the vehicle; a search beam selector that selects a search beam corresponding to the sound source of the voice of the speaker in the vehicle from the plurality of search beams formed by the search beam former; and a directivity former that forms directivity of the sound collected by the sound collector in the direction corresponding to the search beam selected by the search beam selector.
Abstract:
A voice registration device includes an acquisition unit that acquires a voice signal of an utterance voice of a speaker and speaker information capable of identifying the speaker, a registration unit that registers the acquired voice signal and speaker information in an associated manner in a database, a progress degree determination unit that repeatedly determines a registration progress degree of the voice signal registered in the database with respect to a registration target amount of the voice signal registered in the database, and a notification unit that notifies the determined registration progress degree.
Abstract:
An authentication device includes an acquisition unit configured to acquire a voice signal of a speaker; a detection unit configured to detect a first utterance period during which the speaker is speaking; and an authentication unit configured to authenticate the speaker based on a comparison between a voice signal of the first utterance period and a database. The detection unit detects a second utterance period different from the first utterance period when the authentication unit determines that the speaker authentication is impossible, and the authentication unit authenticates the speaker based on a comparison between the voice signal of the first utterance period and a voice signal of the second utterance period, and the database.