Voice input device and display device

Abstract

The present invention is provided with a wave guide unit (200) for guiding incident sound waves, a microphone unit (203) which converts the sound waves which have been guided at the wave guide unit (200) to electrical sound signals, and a signal processing unit (210) which processes the sound signals which have been acquired at the microphone unit (203) using the acoustic properties imparted to the sound signals at the wave guide unit (200). The wave guide unit (200) is configured so that direct sound which directly reaches the microphone unit (203) without reflecting at the inner side surface of the wave guide unit (200), and the indirect sound which reaches the microphone unit (203) after reflecting at the inner side surface, have different acoustic properties. The signal processing unit (210), on the basis of the difference in acoustic properties between the direct sound and the indirect sound, performs direct sound detection processing for detecting whether or not direct sound has been input.

Description

technical field [0001] The present invention relates to a voice input device that performs predetermined control according to an input voice, and a display device that switches a display state according to the input voice. Background technique [0002] Patent Document 1 discloses a device that performs voice-based control. This device includes a display unit for displaying musical scores and a microphone built into the device. This device recognizes intervals of sounds input into a microphone and sounds produced by an instrument, judges where a performance is performed on a score displayed on a display unit, and automatically turns the score. By using this device, the player does not have to take his hands off the instrument in order to turn the sheet music. [0003] However, in the case of this device, the player does not need to turn the score by hand during normal performance, but during practice, it is necessary to manually perform the operation by updating the switch....

AI Technical Summary

Problems solved by technology

[0008] However, in the above-mentioned conventional devices, for example, when the device is placed on the music stand of a piano, and the piano is played while turning the score by voice, in the state where the piano sound is input to the microphone, the sound is input in a manner superimposed on the piano sound.

In the above-mentioned existing devices, it is very difficult to distinguish between voice and piano sound, and there is a problem that the accuracy of page turning is insufficient.

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