SPEECH INPUT APPARATUS, SPEECH PROCESSING METHOD, SPEECH PROCESSING PROGRAM, CEILING MEMBER, AND VEHICLE
First Claim
1. A speech input apparatus comprising:
- a sound insulating block attached to a ceiling member in a vehicle;
a first microphone that is attached to one of a side surface of said sound insulating block and the ceiling member in a vicinity of said sound insulating block on a side close to a passenger of the vehicle, inputs a sound mixture including a voice of the passenger and noise in the vehicle and outputs a first signal to a noise suppressor; and
a second microphone that is attached to one of a side surface of said sound insulating block and the ceiling member in the vicinity of said sound insulating block on a side far from the passenger, inputs the noise in the vehicle and outputs a second signal to the noise suppressor.
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Accused Products
Abstract
An apparatus of this invention is directed to a speech input apparatus for obtaining a piece of high-quality speech with included noise reduced. The speech input apparatus includes a sound insulating block attached to a ceiling member in a vehicle, a first microphone that is attached to a side surface of the sound insulating block or the ceiling member in the vicinity of the sound insulating block on a side close to a passenger of the vehicle, inputs a sound mixture including the voice of the passenger and noise in the vehicle, and outputs a first signal to a noise suppressor configured to output an enhanced speech signal, and a second microphone that is attached to a side surface of the sound insulating block or the ceiling member in the vicinity of the sound insulating block on a side far from the passenger, inputs the noise in the vehicle, and outputs a second signal to the noise suppressor.
8 Citations
17 Claims
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1. A speech input apparatus comprising:
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a sound insulating block attached to a ceiling member in a vehicle; a first microphone that is attached to one of a side surface of said sound insulating block and the ceiling member in a vicinity of said sound insulating block on a side close to a passenger of the vehicle, inputs a sound mixture including a voice of the passenger and noise in the vehicle and outputs a first signal to a noise suppressor; and a second microphone that is attached to one of a side surface of said sound insulating block and the ceiling member in the vicinity of said sound insulating block on a side far from the passenger, inputs the noise in the vehicle and outputs a second signal to the noise suppressor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16, 17)
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14. A speech processing method comprising:
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by a first microphone that is provided on one of a side surface of a sound insulating block attached to a ceiling member in a vehicle and the ceiling member in a vicinity of the sound insulating block on a side close to a passenger of the vehicle, inputting a sound mixture including a voice of the passenger and noise in the vehicle and outputting a first signal to a noise suppressor; and by a second microphone that is provided on one of a side surface of the sound insulating block attached to the ceiling member in the vehicle and the ceiling member in the vicinity of the sound insulating block on a side far from the passenger, inputting the noise in the vehicle and outputting a second signal to the noise suppressor; and by the noise suppressor, suppressing the noise based on the first signal and the second signal and outputting an enhanced speech signal.
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15. A non-transitory computer readable medium storing a speech processing program for causing a computer to execute a method comprising:
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causing a first microphone that is provided on one of a side surface of a sound insulating block attached to a ceiling member in a vehicle and the ceiling member in a vicinity of the sound insulating block on a side close to a passenger of the vehicle, to input a sound mixture including a voice of the passenger and noise in the vehicle and output a first signal to a noise suppressor; and causing a second microphone that is provided on one of a side surface of the sound insulating block attached to the ceiling member in the vehicle and the ceiling member in the vicinity of the sound insulating block on a side far from the passenger, to input the noise in the vehicle and output a second signal to the noise suppressor; and causing the noise suppressor to suppress the noise based on the first signal and the second signal and output an enhanced speech signal.
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Specification