Fujitsu Corporation

Chisato Ishikawa

Masanao Suzuki

Takeshi Otani

Taro Togawa

Masakiyo Tanaka

Asako Nishida

An apnea episode determination device includes, a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, detecting a breathing segment and a midway segment from a sound signal during sleep, the breathing segment being considered to include a breathing sound, the midway segment existing in between the breathing segments; calculating an acoustic feature based on a background noise component and a signal component excluding the background noise component, which are included in the midway segment; and determining that the midway segment is an apnea episode when the acoustic feature meets a preset condition.

Apnea episode determination device and apnea episode determination method

An audio processing device includes a setting section that sets a reproduction sampling frequency Fand a recording sampling frequency Fhigher than F, a digital-to-analog converter that based on Fconverts a sound source signal that is a digital signal into a reproduction signal that is an analog signal, an analog-to-digital converter that based on Fconverts a recording signal that is an analog signal converter into an input signal that is a digital signal, a signal separator that separates the input signal into a low region signal contained in a band of less than Fand a high region signal contained in a band of the Fand higher, and a breakup detector that detects whether or not breakup is occurring in the reproduced sound based on power of the high region signal.

Audio processing device and method

A voice control device includes a calculation section configured to calculate a response time representing a time difference between a voice in a received signal and a voice in a sending signal; a hearing estimate section configured to estimate hearing of a user based on the calculated response time; and a voice control section configured to control the received signal by a compensation quantity responsive to the estimated hearing.

Voice control device, voice control method, and portable terminal device

A voice control device includes a hearing estimate section configured to estimate hearing of a user based on a sending/received sound ratio representing a ratio of the volume of a sending sound to the volume of a received sound; a compensation-quantity calculating section configured to calculate a compensation quantity for a received signal of the received sound responsive to the estimated hearing; and a compensation section configured to compensate the received signal based on the calculated compensation quantity.

Voice control device and voice control method

A voice correction device includes a detector that detects a response from a user, a calculator that calculates an acoustic characteristic amount of an input voice signal, an analyzer that outputs an acoustic characteristic amount of a predetermined amount when having acquired a response signal due to the response from the detector, a storage unit that stores the acoustic characteristic amount output by the analyzer, a controller that calculates an correction amount of the voice signal on the basis of a result of a comparison between the acoustic characteristic amount calculated by the calculator and the acoustic characteristic amount stored in the storage unit, and a correction unit that corrects the voice signal on the basis of the correction amount calculated by the controller.

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Kawasaki, Japan

Chisato Ishikawa