DE3115801C2 - - Google Patents
Info
- Publication number
- DE3115801C2 DE3115801C2 DE3115801A DE3115801A DE3115801C2 DE 3115801 C2 DE3115801 C2 DE 3115801C2 DE 3115801 A DE3115801 A DE 3115801A DE 3115801 A DE3115801 A DE 3115801A DE 3115801 C2 DE3115801 C2 DE 3115801C2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- circuit
- input
- control
- output
- 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
- 230000005236 sound signal Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 10
- 210000001260 vocal cord Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000008447 perception Effects 0.000 description 3
- 230000035807 sensation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 208000032041 Hearing impaired Diseases 0.000 description 1
- 101710096655 Probable acetoacetate decarboxylase 1 Proteins 0.000 description 1
- 101710096660 Probable acetoacetate decarboxylase 2 Proteins 0.000 description 1
- 108091022873 acetoacetate decarboxylase Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000005238 low-frequency sound signal Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 210000003800 pharynx Anatomy 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Circuit For Audible Band Transducer (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980054290U JPS6137040Y2 (fr) | 1980-04-21 | 1980-04-21 | |
| JP5268280A JPS56149097A (en) | 1980-04-21 | 1980-04-21 | Human voice signal identifying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3115801A1 DE3115801A1 (de) | 1982-01-14 |
| DE3115801C2 true DE3115801C2 (fr) | 1987-09-03 |
Family
ID=26393319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813115801 Granted DE3115801A1 (de) | 1980-04-21 | 1981-04-18 | "verfahren und schaltungsanordnung zum unterscheiden der sprechsignale von anderen tonsignalen |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1184506A (fr) |
| DE (1) | DE3115801A1 (fr) |
| FR (1) | FR2480978B1 (fr) |
| GB (2) | GB2077078B (fr) |
| IT (1) | IT1142404B (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2547690B1 (fr) * | 1983-06-20 | 1985-12-06 | Capel Raymond | Dispositif electronique permettant de creer une ambiance lumineuse comparable au coucher du soleil |
| EP1339256B1 (fr) * | 2003-03-03 | 2017-12-27 | Sonova AG | Procédé pour la fabrication des dispositifs acoustiques et pour la réduction des perturbations dues au vent |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3102236A (en) * | 1960-05-05 | 1963-08-27 | Collins Radio Co | Squelch circuit controlled by demodulated voice signal |
| US3377428A (en) * | 1960-12-29 | 1968-04-09 | Ibm | Voiced sound detector circuits and systems |
| US3336533A (en) * | 1964-03-13 | 1967-08-15 | Motorola Inc | Electronic circuit |
| GB1094357A (en) * | 1964-12-09 | 1967-12-13 | Mullard Ltd | Improvements in or relating to speech filters |
| GB1120541A (en) * | 1965-08-11 | 1968-07-17 | Dolby Ray Milton | Improvements in noise reduction systems |
| US3513260A (en) * | 1967-10-13 | 1970-05-19 | Ibm | Speech presence detector |
| FR2050782A5 (fr) * | 1969-06-25 | 1971-04-02 | Cit Alcatel | |
| US3678416A (en) * | 1971-07-26 | 1972-07-18 | Richard S Burwen | Dynamic noise filter having means for varying cutoff point |
| US3798559A (en) * | 1971-04-20 | 1974-03-19 | Matsushita Electric Ind Co Ltd | Noise reduction system |
| JPS5154703A (fr) * | 1974-11-08 | 1976-05-14 | Oki Electric Ind Co Ltd | |
| US4051331A (en) * | 1976-03-29 | 1977-09-27 | Brigham Young University | Speech coding hearing aid system utilizing formant frequency transformation |
| US4025721A (en) * | 1976-05-04 | 1977-05-24 | Biocommunications Research Corporation | Method of and means for adaptively filtering near-stationary noise from speech |
| GB1591869A (en) * | 1978-05-31 | 1981-06-24 | Pye Elecronic Products Ltd | Alternating signal detector |
-
1981
- 1981-04-16 CA CA000375651A patent/CA1184506A/fr not_active Expired
- 1981-04-17 IT IT8148303A patent/IT1142404B/it active
- 1981-04-18 DE DE19813115801 patent/DE3115801A1/de active Granted
- 1981-04-21 GB GB8112276A patent/GB2077078B/en not_active Expired
- 1981-04-21 FR FR8107876A patent/FR2480978B1/fr not_active Expired
-
1984
- 1984-02-09 GB GB08403418A patent/GB2143105B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB8403418D0 (en) | 1984-03-14 |
| CA1184506A (fr) | 1985-03-26 |
| IT8148303A0 (it) | 1981-04-17 |
| IT1142404B (it) | 1986-10-08 |
| GB2077078B (en) | 1984-09-12 |
| GB2143105A (en) | 1985-01-30 |
| DE3115801A1 (de) | 1982-01-14 |
| FR2480978A1 (fr) | 1981-10-23 |
| GB2143105B (en) | 1985-07-24 |
| GB2077078A (en) | 1981-12-09 |
| FR2480978B1 (fr) | 1985-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |