Hearing aid, signal processing method, and program
First Claim
1. A hearing aid worn on both ears which has two microphone arrays respectively for both of the ears, the hearing aid comprising:
- a sound source direction estimation section that detects a sound source direction from sound signals input from the microphone arrays;
an own-speech detection section that detects a voice of a hearing aid wearer from the sound signal;
a TV sound detection section that detects TV sound from the sound signal;
another-speaker'"'"'s speech detection section that detects speech of a speaker other than a wearer based on the detected sound source direction information, the own-speech detection result, and the TV sound detection result;
a per-sound-source frequency calculation section that calculates, in each direction and for each sound source, a per-sound-source frequency which indicates how often the sound source is detected per predetermined time, based on the own-speech detection result, the TV sound detection result, the other-speaker'"'"'s speech detection result, and the sound source direction information;
a scene determination section that determines a scene using the sound source direction information and the per-sound-source frequency; and
an output sound control section that controls a sound output from the hearing aid according to the determined scene,wherein the scene determination section performs scene classification for a “
conversation scene”
in which a wearer is engaged in conversation, a “
TV viewing scene”
in which a wearer is watching TV, and a “
TV viewing while conversation scene”
in which a wearer is simultaneously engaged in conversation and watching TV, andthe output sound control section orients a directivity beam in a frontal direction in the “
conversation scene”
.
3 Assignments
0 Petitions
Accused Products
Abstract
A hearing aid, signal processing method and program enables TV sound to be made easier for a hearing aid user to hear when wishing to watch TV, and a person'"'"'s voice to be made easier to hear when wishing to converse with that person. The hearing aid includes another-person'"'"'s speech detection section that detects speech of a speaker other than the wearer using detected sound source direction information, an own-speech detection result, and a TV sound detection result, and a per-sound-source frequency calculation section that calculates the frequency of each sound source using an own-speech detection result, TV sound detection result, other-speaker'"'"'s speech detection result, and sound source direction information. A scene determination section determines a scene using sound source direction information and a per-sound-source frequency; and an output sound control section controls hearing of the hearing aid according to a determined scene.
14 Citations
32 Claims
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1. A hearing aid worn on both ears which has two microphone arrays respectively for both of the ears, the hearing aid comprising:
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a sound source direction estimation section that detects a sound source direction from sound signals input from the microphone arrays; an own-speech detection section that detects a voice of a hearing aid wearer from the sound signal; a TV sound detection section that detects TV sound from the sound signal; another-speaker'"'"'s speech detection section that detects speech of a speaker other than a wearer based on the detected sound source direction information, the own-speech detection result, and the TV sound detection result; a per-sound-source frequency calculation section that calculates, in each direction and for each sound source, a per-sound-source frequency which indicates how often the sound source is detected per predetermined time, based on the own-speech detection result, the TV sound detection result, the other-speaker'"'"'s speech detection result, and the sound source direction information; a scene determination section that determines a scene using the sound source direction information and the per-sound-source frequency; and an output sound control section that controls a sound output from the hearing aid according to the determined scene, wherein the scene determination section performs scene classification for a “
conversation scene”
in which a wearer is engaged in conversation, a “
TV viewing scene”
in which a wearer is watching TV, and a “
TV viewing while conversation scene”
in which a wearer is simultaneously engaged in conversation and watching TV, andthe output sound control section orients a directivity beam in a frontal direction in the “
conversation scene”
. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A signal processing method that is a signal processing method of a hearing aid worn on both ears which has two microphone arrays respectively for both of the ears, the signal processing method comprising:
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detecting a sound source direction from sound signals input from the microphone arrays; detecting a voice of a hearing aid wearer from the sound signal; detecting TV sound from the sound signal; detecting speech of a speaker other than a wearer based on the detected sound source direction information, the own-speech detection result, and the TV sound detection result; calculating, in each direction and for each sound source, a per-sound-source frequency which indicates how often the sound source is detected per predetermined time, based on the own-speech detection result, the TV sound detection result, the other-speaker'"'"'s speech detection result, and the sound source direction information; determining a scene based on the sound source direction information and the per-sound-source frequency; and controlling a sound output from the hearing aid according to the determined scene, wherein, in the determining of the scene, classification for each scene is performed, the each scene having a “
conversation scene”
in which a wearer is engaged in conversation, a “
TV viewing scene”
in which a wearer is watching TV, and a “
TV viewing while conversation scene”
in which a wearer is simultaneously engaged in conversation and watching TV, andin the controlling of the sound output, a directivity beam in a frontal direction in a “
conversation scene”
is oriented. - View Dependent Claims (8)
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9. A hearing aid worn on both ears which has two microphone arrays respectively for both of the ears, the hearing aid comprising:
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a sound source direction estimation section that detects a sound source direction from sound signals input from the microphone arrays; an own-speech detection section that detects a voice of a hearing aid wearer from the sound signal; a TV sound detection section that detects TV sound from the sound signal; another-speaker'"'"'s speech detection section that detects speech of a speaker other than a wearer based on the detected sound source direction information, the own-speech detection result, and the TV sound detection result; a per-sound-source frequency calculation section that calculates, in each direction and for each sound source, a per-sound-source frequency which indicates how often the sound source is detected per predetermined time, based on the own-speech detection result, the TV sound detection result, the other-speaker'"'"'s speech detection result, and the sound source direction information; a scene determination section that determines a scene using the sound source direction information and the per-sound-source frequency; and an output sound control section that controls a sound output from the hearing aid according to the determined scene, wherein the scene determination section performs scene classification for a “
conversation scene”
in which a wearer is engaged in conversation, a “
TV viewing scene”
in which a wearer is watching TV, and a “
TV viewing while conversation scene”
in which a wearer is simultaneously engaged in conversation and watching TV, andthe output sound control section orients a directivity beam in a frontal direction in a “
TV viewing scene”
. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A signal processing method that is a signal processing method of a hearing aid worn on both ears which has two microphone arrays respectively for both of the ears, the signal processing method comprising:
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detecting a sound source direction from sound signals input from the microphone arrays; detecting a voice of a hearing aid wearer from the sound signal; detecting TV sound from the sound signal; detecting speech of a speaker other than a wearer based on the detected sound source direction information, the own-speech detection result, and the TV sound detection result; calculating, in each direction and for each sound source, a per-sound-source frequency which indicates how often the sound source is detected per predetermined time, based on the own-speech detection result, the TV sound detection result, the other-speaker'"'"'s speech detection result, and the sound source direction information; determining a scene based on the sound source direction information and the per-sound-source frequency; and controlling a sound output from the hearing aid according to the determined scene, wherein, in the determining of the scene, scene classification of each scene is performed, the each scene having a “
conversation scene”
in which a wearer is engaged in conversation, a “
TV viewing scene”
in which a wearer is watching TV, and a “
TV viewing while conversation scene”
in which a wearer is simultaneously engaged in conversation and watching TV, andin the controlling of the sound output, a directivity beam in a frontal direction in a “
TV viewing scene”
is oriented. - View Dependent Claims (16)
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17. A hearing aid worn on both ears which has two microphone arrays respectively for both of the ears, the hearing aid comprising:
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a sound source direction estimation section that detects a sound source direction from sound signals input from the microphone arrays; an own-speech detection section that detects a voice of a hearing aid wearer from the sound signal; a TV sound detection section that detects TV sound from the sound signal; another-speaker'"'"'s speech detection section that detects speech of a speaker other than a wearer based on the detected sound source direction information, the own-speech detection result, and the TV sound detection result; a per-sound-source frequency calculation section that calculates, in each direction and for each sound source, a per-sound-source frequency which indicates how often the sound source is detected per predetermined time, based on the own-speech detection result, the TV sound detection result, the other-speaker'"'"'s speech detection result, and the sound source direction information; a scene determination section that determines a scene using the sound source direction information and the per-sound-source frequency; and an output sound control section that controls a sound output from the hearing aid according to the determined scene, wherein the scene determination section performs scene classification for a “
conversation scene”
in which a wearer is engaged in conversation, a “
TV viewing scene”
in which a wearer is watching TV, and a “
TV viewing while conversation scene”
in which a wearer is simultaneously engaged in conversation and watching TV, andthe output sound control section outputs TV sound received by the TV sound reception section to one ear and outputs sound for which wide directivity has been set for the other ear in a “
TV viewing while conversation scene”
. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A signal processing method that is a signal processing method of a hearing aid worn on both ears which has two microphone arrays respectively for both of the ears, the signal processing method comprising:
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detecting a sound source direction from sound signals input from the microphone arrays; detecting a voice of a hearing aid wearer from the sound signal; detecting TV sound from the sound signal; detecting speech of a speaker other than a wearer based on the detected sound source direction information, the own-speech detection result, and the TV sound detection result; calculating, in each direction and for each sound source, a per-sound-source frequency which indicates how often the sound source is detected per predetermined time, based on the own-speech detection result, the TV sound detection result, the other-speaker'"'"'s speech detection result, and the sound source direction information; determining a scene based on the sound source direction information and the per-sound-source frequency; and controlling a sound output from the hearing aid according to the determined scene, wherein in the determining of the scene, scene classification for each scene is performed, the each scene having a “
conversation scene”
in which a wearer is engaged in conversation, a “
TV viewing scene”
in which a wearer is watching TV, and a “
TV viewing while conversation scene”
in which a wearer is simultaneously engaged in conversation and watching TV, andin the controlling of the sound output, the received TV sound for one ear and sound for which wide directivity has been set for the other ear are output in a “
TV viewing while conversation scene”
. - View Dependent Claims (24)
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25. A hearing aid worn on both ears which has two microphone arrays respectively for both of the ears, the hearing aid comprising:
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a sound source direction estimation section that detects a sound source direction from sound signals input from the microphone arrays; an own-speech detection section that detects a voice of a hearing aid wearer from the sound signal; a TV sound detection section that detects TV sound from the sound signal; another-speaker'"'"'s speech detection section that detects speech of a speaker other than a wearer based on the detected sound source direction information, the own-speech detection result, and the TV sound detection result; a per-sound-source frequency calculation section that calculates, in each direction and for each sound source, a per-sound-source frequency which indicates how often the sound source is detected per predetermined time, based on the own-speech detection result, the TV sound detection result, the other-speaker'"'"'s speech detection result, and the sound source direction information; a scene determination section that determines a scene using the sound source direction information and the per-sound-source frequency; an output sound control section that controls a sound output from the hearing aid according to the determined scene; and transmission/reception section that outputs a TV sound control signal that controls TV sound, wherein the scene determination section performs scene classification for a “
conversation scene”
in which a wearer is engaged in conversation, a “
TV viewing scene”
in which a wearer is watching TV, and a “
TV viewing while conversation scene”
in which a wearer is simultaneously engaged in conversation and watching TV, andthe output sound control section generates the TV sound control signal, based on a classification result from the scene determination section. - View Dependent Claims (26, 27, 28, 29, 30)
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31. A signal processing method that is a signal processing method of a hearing aid worn on both ears which has two microphone arrays respectively for both of the ears, the signal processing method comprising:
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detecting a sound source direction from sound signals input from the microphone arrays; detecting a voice of a hearing aid wearer from the sound signal; detecting TV sound from the sound signal; detecting speech of a speaker other than a wearer based on the detected sound source direction information, the own-speech detection result, and the TV sound detection result; calculating, in each direction and for each sound source, a per-sound-source frequency which indicates how often the sound source is detected per predetermined time, based on the own-speech detection result, the TV sound detection result, the other-speaker'"'"'s speech detection result, and the sound source direction information; determining a scene based on the sound source direction information and the per-sound-source frequency; controlling a sound output from the hearing aid according to the determined scene; and outputting a TV sound control signal that controls TV sound, wherein in the determining of the scene, the scene classification for each scene is performed, the each scene having a “
conversation scene”
in which a wearer is engaged in conversation, a “
TV viewing scene”
in which a wearer is watching TV, and a ‘
TV viewing while conversation scene”
in which a wearer is simultaneously engaged in conversation and watching TV; andin the controlling of the sound output, the TV sound control signal, based on a classification result from the scene determination section, is generated. - View Dependent Claims (32)
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Specification