JP5622744B2 - 音声認識装置 - Google Patents
音声認識装置 Download PDFInfo
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- JP5622744B2 JP5622744B2 JP2011539182A JP2011539182A JP5622744B2 JP 5622744 B2 JP5622744 B2 JP 5622744B2 JP 2011539182 A JP2011539182 A JP 2011539182A JP 2011539182 A JP2011539182 A JP 2011539182A JP 5622744 B2 JP5622744 B2 JP 5622744B2
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- 238000010586 diagram Methods 0.000 description 12
- 238000000605 extraction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000013500 data storage Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/08—Speech classification or search
- G10L15/10—Speech classification or search using distance or distortion measures between unknown speech and reference templates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L25/84—Detection of presence or absence of voice signals for discriminating voice from noise
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
- G10L2021/02166—Microphone arrays; Beamforming
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Circuit For Audible Band Transducer (AREA)
- User Interface Of Digital Computer (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Toys (AREA)
Description
第1の実施の形態に係る音声認識装置10は、話者の動作により発生する音(以下「合図音」という)を検知することにより、音声入力部に含まれるマイクロフォンアレイの指向方向を合図音の音源方向に設定し、話者からの音声を認識し、テレビ受像機等の電子機器を制御する。合図音には、例えば、手のひらなどの複数の体の部位を打ち鳴らす音、指を弾く音、指や手などの体の部位で物を叩く音などが含まれる。本実施の形態では、手のひらを打ち鳴らす音を合図音として用いる。
例えば、話者が、合図音を発し、その後、一定時間内に音声を入力する例もあり得る。
変形例1の音声認識装置10は、以下の形態とすることもできる。
図9は、本発明の第2の実施の形態に係る音声認識装置のブロック図である。
11 マイクロフォンアレイ
12 記憶部
13、113 判定部
14 音源方向推定部
15 指向性制御部
16 音声認識部
17 機器制御部
18 表示部
20 テレビ受像機
21、22 マイクロフォン
29 筐体
50 音声入力部
150 抽出部
Claims (4)
- 複数のマイクロフォンを含む音声入力部に入力された音に、周波数が1000Hz以上であり、強度が所定の閾値以上の合図音が含まれるか否かを判定する判定部と、
前記判定部による判定が真の場合に、強度が所定の閾値以上の周波数を含む前記音の音源方向を推定する音源方向推定部と、
推定された前記音源方向から到来した音が、あらかじめ登録された音声モデルと一致するか否かを判定する音声認識部と
を備え、
前記複数のマイクロフォンを含む音声入力部に入力された音は、話者の動作により発生した合図音が含まれることを特徴とする音声認識装置。 - 複数のマイクロフォンを含む音声入力部に入力された音に、周波数が1000Hz以上であり、強度が所定の閾値以上の合図音が含まれるか否かを判定する判定部と、
前記判定部による判定が真の場合に、強度が所定の閾値以上の周波数を含む前記音の音源方向を推定する音源方向推定部と、
推定された前記音源方向に前記マイクロフォンの指向方向を設定する指向性制御部と、
設定された前記指向方向から到来した音声を認識する音声認識部と
を備え、
前記複数のマイクロフォンを含む音声入力部に入力された音は、話者の動作により派生した合図音が含まれることを特徴とする音声認識装置。 - 前記判定部は、
強度が所定の閾値以上の周波数を含む前記音が、所定の時間内に2度検出されたか否かをさらに判定することを特徴とする、請求項1または請求項2に記載の音声認識装置。 - 前記判定部は、前記周波数とは異なる周波数であり、かつ、強度が所定の閾値以上の合図音が含まれているか否かをさらに判定することを特徴とする請求項1または請求項2に記載の音声認識装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/005905 WO2011055410A1 (ja) | 2009-11-06 | 2009-11-06 | 音声認識装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2011055410A1 JPWO2011055410A1 (ja) | 2013-03-21 |
JP5622744B2 true JP5622744B2 (ja) | 2014-11-12 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011539182A Expired - Fee Related JP5622744B2 (ja) | 2009-11-06 | 2009-11-06 | 音声認識装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8762145B2 (ja) |
JP (1) | JP5622744B2 (ja) |
CN (1) | CN102483918B (ja) |
WO (1) | WO2011055410A1 (ja) |
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