Patent Document ID: 8892424
Application ID: 13371135

Base Claim:
1. An audio analysis system comprising: a terminal apparatus that is to be worn by a user; and a host system that acquires information from the terminal apparatus, wherein the terminal apparatus includes a first audio acquisition device that acquires a sound and converts the sound into a first audio signal, the sound containing an utterance of the user and an utterance of another person who is different from the user, a discriminator that discriminates between a portion that corresponds to the utterance of the user and a portion that corresponds to the utterance of the other person which are contained in the first audio signal, an utterance feature detector that detects an utterance feature of the user or the other person, on the basis of the portion that corresponds to the utterance of the user or the portion that corresponds to the utterance of the other person, and a transmission unit that transmits to the host system utterance information that contains at least a discrimination result obtained by the discriminator and a detection result obtained by the utterance feature detector, and wherein the host system includes a reception unit that receives the utterance information that has been transmitted from the transmission unit, a conversation information detector that detects a part corresponding to a first conversation between the user and the other person from the utterance information that has been received by the reception unit, and detects portions of the part of the utterance information that correspond to the user and the other person who are related to the first conversation, a relation information holding unit that holds relation information on a relation between a predetermined emotion name and a combination of a plurality of the utterance features of a plurality of speakers who participated in a past conversation, an emotion estimator that compares, with the relation information, a combination of a plurality of the utterance features that correspond to the portions of the part of the utterance information of the user and the other person who are related to the first conversation, and estimates an emotion of at least one of the user and the other person, and an output unit that outputs information that is based on an estimation result obtained by the emotion estimator.

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Claim 2:
2. The audio analysis system according to claim 1 , wherein the terminal apparatus further includes a second audio acquisition device disposed at a position where a sound pressure of an utterance-based sound that arrives from the mouth of the user differs from a sound pressure of the utterance-based sound that arrives at the first audio acquisition device, the second audio acquisition device acquiring the sound and converting the sound into a second audio signal, wherein the discriminator discriminates between a portion that corresponds to the utterance of the user and a portion that corresponds to the utterance of the other person which are contained in the first audio signal, on the basis of a result of comparing the first audio signal with the second audio signal, and wherein the utterance feature detector detects an utterance feature of the user or the other person, on the basis of the portion that corresponds to the utterance of the user or the portion that corresponds to the utterance of the other person which is contained in the first audio signal or the second audio signal.