GB2208023B - Voice recognition system - Google Patents
Voice recognition systemInfo
- Publication number
- GB2208023B GB2208023B GB8822390A GB8822390A GB2208023B GB 2208023 B GB2208023 B GB 2208023B GB 8822390 A GB8822390 A GB 8822390A GB 8822390 A GB8822390 A GB 8822390A GB 2208023 B GB2208023 B GB 2208023B
- Authority
- GB
- United Kingdom
- Prior art keywords
- voice
- supplied
- signal
- power signal
- recognition system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
-
- 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
- G10L25/87—Detection of discrete points within a voice signal
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
A voice or sound recognition system includes a microphone (1) for converting a voice into an electrical voice signal, processing means (12, 13) for generating a voice pattern in the form of a time-frequency distribution, and an identifying unit (17) for matching the voice pattern with registered voice patterns. The processing means (13) also provides a voice power signal which is supplied to a voice interval detector (14) and also to a power calculator (15) where the power signal is added frame by frame when the voice power signal exceeds a threshold. The added result is then supplied to a comparator (16) where it is compared with upper and lower reference values, and a cancel signal for cancelling the further processing of the current voice pattern is supplied to the identifying unit (17) when the added result is outside the range between the upper and lower reference values. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8822390A GB2208023B (en) | 1985-09-06 | 1988-09-23 | Voice recognition system |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19725585A JPS6257000A (en) | 1985-09-06 | 1985-09-06 | Voice recognition equipment |
JP60197254A JPS6256999A (en) | 1985-09-06 | 1985-09-06 | Pattern registration system |
JP61061726A JPS62217296A (en) | 1986-03-19 | 1986-03-19 | Input cancellation of voice recognition equipment |
JP61089138A JPS62244100A (en) | 1986-04-17 | 1986-04-17 | Voice section detecting system |
GB8822390A GB2208023B (en) | 1985-09-06 | 1988-09-23 | Voice recognition system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8822390D0 GB8822390D0 (en) | 1988-10-26 |
GB2208023A GB2208023A (en) | 1989-02-15 |
GB2208023B true GB2208023B (en) | 1989-08-16 |
Family
ID=27516849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8822390A Expired GB2208023B (en) | 1985-09-06 | 1988-09-23 | Voice recognition system |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2208023B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019186403A1 (en) * | 2018-03-29 | 2019-10-03 | 3M Innovative Properties Company | Voice-activated sound encoding for headsets using frequency domain representations of microphone signals |
-
1988
- 1988-09-23 GB GB8822390A patent/GB2208023B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2208023A (en) | 1989-02-15 |
GB8822390D0 (en) | 1988-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20020904 |