Abstract: A voice conference apparatus that provides a plurality of voice conferences via a network, the voice conference apparatus including: a voice conference section that transmits and receives a sound generated in each of the plurality of voice conferences to and from a plurality of user terminals used by a plurality of users participating in the voice conference; a sound analyzing section that analyzes the sound generated in each of the plurality of voice conferences; and a display control section that causes an administrator terminal used by an administrator administering the plurality of voice conferences to display a result of the analysis, by the sound analyzing section, of the sound generated in each of the plurality of voice conferences, in association with the voice conference.

Abstract: The present invention relates to a method for producing a liquid composition for oral cavity in which ?-glycyrrhetinic acid is stably dispersed or dissolved to exhibit an increased transparency and which also can ensure a sufficient amount of ?-glycyrrhetinic acid adsorbed on gingiva, even if the amount of a cationic surfactant or an anionic surfactant is restricted; and such a liquid composition for oral cavity. Specifically, the present invention relates to a method for producing a liquid composition for oral cavity, comprising the following step 1 to step 4: (Step 1) a step of blending water (F) with an organic acid and a salt thereof (E) to adjust the pH of a resultant mixture to 5 or more and 6.8 or less, (Step 2) a step of blending 0.02% by mass or more and 0.1% by mass or less of cetylpyridinium chloride (B) into the mixture, (Step 3) a step of blending 0.02% by mass or more and 0.

Abstract: A conversation member optimization apparatus includes: a conversation analyzing unit configured to recognize sound signals in a plurality of conferences held in the past for each conference and analyze conversations in the conferences for each conference; an estimating unit configured to estimate feature quantities in combinations of the members who participate in the conferences to be held on the basis of results analyzed by the conversation analyzing unit and in accordance with a member selecting instruction used to select members who participate in conferences to be held; and a member selecting unit configured to select the members on the basis of the results estimated by the estimating 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 conversation analysis device includes an utterance data acquisition unit that acquires utterance data representing a voice of each speaker and an utterance of the speaker, a speech state analysis unit that analyzes a speech state of each speaker on the basis of the voice, and a degree-of-contribution calculation unit that calculates a degree of contribution to the conversation of each speaker on the basis of the speech state.

Abstract: A conversation processing apparatus includes a sound collection unit configured to collect voice signals of a plurality of speakers, a conversation recording unit configured to record the voice signals of the speakers collected by the sound collection unit, and a conversation analysis unit configured to calculate a degree to which a conversation between any two speakers is stimulated by analyzing the conversation between the two speakers from the voice signals recorded on the conversation recording unit.

Abstract: A voice processing apparatus includes: a scenario storing unit configured to store a scenario as text information; a sound collecting unit configured to collect sound uttered by an utterer; a voice recognizing unit configured to perform voice recognition on the sound collected by the sound collecting unit; and a subtitle generating unit configured to read the text information from the scenario storing unit, to generate subtitles, and to change a display of a portion which has been already uttered by the utterer in a character string of the subtitles on the basis of a result of voice recognition by the voice recognizing unit.

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 conversation data acquiring unit acquires conversation data indicating speech of each speaker in a conversation. A conversation state analyzing unit analyzes an amount of speech of each speaker in the conversation and a degree of influence of the speech of each speaker on the conversation on the basis of the conversation data. A role determining unit determines a role of each speaker in the conversation on the basis of the amount of speech and the degree of influence of the speaker.

Abstract: A conversation member optimization apparatus includes: a conversation analyzing unit configured to recognize sound signals in a plurality of conferences held in the past for each conference and analyze conversations in the conferences for each conference; an estimating unit configured to estimate feature quantities in combinations of the members who participate in the conferences to be held on the basis of results analyzed by the conversation analyzing unit and in accordance with a member selecting instruction used to select members who participate in conferences to be held; and a member selecting unit configured to select the members on the basis of the results estimated by the estimating unit.

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: The present invention relates to a method for producing a liquid composition for oral cavity in which ?-glycyrrhetinic acid is stably dispersed or dissolved to exhibit an increased transparency and which also can ensure a sufficient amount of ?-glycyrrhetinic acid adsorbed on gingiva, even if the amount of a cationic surfactant or an anionic surfactant is restricted; and such a liquid composition for oral cavity. Specifically, the present invention relates to a method for producing a liquid composition for oral cavity, comprising the following step 1 to step 4: (Step 1) a step of blending water (F) with an organic acid and a salt thereof (E) to adjust the pH of a resultant mixture to 5 or more and 6.8 or less, (Step 2) a step of blending 0.02% by mass or more and 0.1% by mass or less of cetylpyridinium chloride (B) into the mixture, (Step 3) a step of blending 0.02% by mass or more and 0.

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 conversation data acquiring unit acquires conversation data indicating speech of each speaker in a conversation. A conversation state analyzing unit analyzes an amount of speech of each speaker in the conversation and a degree of influence of the speech of each speaker on the conversation on the basis of the conversation data. A role determining unit determines a role of each speaker in the conversation on the basis of the amount of speech and the degree of influence of the speaker.

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 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 sound source-separating device includes a sound-collecting part, an imaging part, a sound signal-evaluating part, an image signal-evaluating part, a selection part that selects whether to estimate a sound source direction based on the first sound signal or the first image signal, a person position-estimating part that estimates a sound source direction using the first image signal, a sound source direction-estimating part that estimates a sound source direction, a sound source-separating part that extracts a second sound signal corresponding to the sound source direction from the first sound signal, an image-extracting part that extracts a second image signal of an area corresponding to the estimated sound source direction from the first image signal, and an image-combining part that changes a third image signal of an area other than the area for the second image signal and combines the third image signal with the second image signal.

Abstract: A sound source separating device includes: a sound collecting unit configured to collect sound signals using a plurality of microphones; a sound source localizing unit configured to localize a sound source on the basis of the sound signals collected by the sound collecting unit; a sound source separating unit configured to separate the sound signals collected by the sound collecting unit into sound sources corresponding to the number of fixed sound sources and fixed sound source directions without using the sound source localization result from the sound source localizing unit; and a speech extracting unit configured to extract speech signals of the fixed sound sources on the basis of the sound source localization result from the sound source localizing unit and the sound source separation result from the sound source separating unit.

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.