JPS5491007A - Audio recognition unit - Google Patents

Audio recognition unit

Info

Publication number
JPS5491007A
JPS5491007A JP15796777A JP15796777A JPS5491007A JP S5491007 A JPS5491007 A JP S5491007A JP 15796777 A JP15796777 A JP 15796777A JP 15796777 A JP15796777 A JP 15796777A JP S5491007 A JPS5491007 A JP S5491007A
Authority
JP
Japan
Prior art keywords
voice
level
noise
period
microphone
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.)
Pending
Application number
JP15796777A
Other languages
Japanese (ja)
Inventor
Hiroaki Sekoe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15796777A priority Critical patent/JPS5491007A/en
Priority to CA318,539A priority patent/CA1116300A/en
Priority to US05/974,274 priority patent/US4239936A/en
Publication of JPS5491007A publication Critical patent/JPS5491007A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reject error recognition due to noises generated during voice production, by eliminating ambient noises generated closely or being isolated from the voice production by detecting a voice period with a real voice level.
CONSTITUTION: This unit consists of voice collecting microphone 10, voice level measurement part 20 for the calculation of the strength level of collected voice signals, ambient-noise collecting microphone 30, noise-level measurement part 40 for the calculation of the strength level of collected noise signals, voice detection part 50 which determines a voice period by detecting the voice level compensated at a noise level, and recognition processing part 60 which recognizes an input voice by analyzing and discriminating signals in the voice period. Then, mixing noises from microphone 10 are compensated at the noise level obtained by microphone 30 and measurement part 40 and the detection of the voice period is attained at a real voice level.
COPYRIGHT: (C)1979,JPO&Japio
JP15796777A 1977-12-28 1977-12-28 Audio recognition unit Pending JPS5491007A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP15796777A JPS5491007A (en) 1977-12-28 1977-12-28 Audio recognition unit
CA318,539A CA1116300A (en) 1977-12-28 1978-12-22 Speech recognition system
US05/974,274 US4239936A (en) 1977-12-28 1978-12-28 Speech recognition system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15796777A JPS5491007A (en) 1977-12-28 1977-12-28 Audio recognition unit

Publications (1)

Publication Number Publication Date
JPS5491007A true JPS5491007A (en) 1979-07-19

Family

ID=15661346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15796777A Pending JPS5491007A (en) 1977-12-28 1977-12-28 Audio recognition unit

Country Status (1)

Country Link
JP (1) JPS5491007A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5511250A (en) * 1978-07-11 1980-01-26 Sanyo Electric Co Voice discriminating circuit in remote controller
JPS5683844U (en) * 1979-11-30 1981-07-06
JPS5732500A (en) * 1980-08-05 1982-02-22 Tokyo Shibaura Electric Co Voice recognizing device
JPS57177199A (en) * 1981-04-25 1982-10-30 Tokyo Shibaura Electric Co Input device for sound
JPS5870292A (en) * 1981-10-22 1983-04-26 日産自動車株式会社 Voice recognition equipment for vehicle
JPS5870290A (en) * 1981-10-22 1983-04-26 日産自動車株式会社 Voice recognition equipment for vehicle
JPS5873217A (en) * 1981-10-27 1983-05-02 Comput Basic Mach Technol Res Assoc Signal input device
JPS58143397A (en) * 1982-02-19 1983-08-25 三洋電機株式会社 Voice recognition unit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5511250A (en) * 1978-07-11 1980-01-26 Sanyo Electric Co Voice discriminating circuit in remote controller
JPS5683844U (en) * 1979-11-30 1981-07-06
JPS5732500A (en) * 1980-08-05 1982-02-22 Tokyo Shibaura Electric Co Voice recognizing device
JPS57177199A (en) * 1981-04-25 1982-10-30 Tokyo Shibaura Electric Co Input device for sound
JPS5870292A (en) * 1981-10-22 1983-04-26 日産自動車株式会社 Voice recognition equipment for vehicle
JPS5870290A (en) * 1981-10-22 1983-04-26 日産自動車株式会社 Voice recognition equipment for vehicle
JPS6367198B2 (en) * 1981-10-22 1988-12-23 Nissan Motor
JPH0136639B2 (en) * 1981-10-22 1989-08-01 Nissan Motor
JPS5873217A (en) * 1981-10-27 1983-05-02 Comput Basic Mach Technol Res Assoc Signal input device
JPS6367199B2 (en) * 1981-10-27 1988-12-23 Denshi Keisanki Kippon Gijutsu Kenkyu Kumiai
JPS58143397A (en) * 1982-02-19 1983-08-25 三洋電機株式会社 Voice recognition unit

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