GB796677A - Improvements in or relating to circuits for the analysis of speech currents - Google Patents
Improvements in or relating to circuits for the analysis of speech currentsInfo
- Publication number
- GB796677A GB796677A GB28214/57A GB2821457A GB796677A GB 796677 A GB796677 A GB 796677A GB 28214/57 A GB28214/57 A GB 28214/57A GB 2821457 A GB2821457 A GB 2821457A GB 796677 A GB796677 A GB 796677A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- circuits
- analysis
- oct
- speech currents
- 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
- 238000010079 rubber tapping Methods 0.000 abstract 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
- G10L25/90—Pitch determination of speech signals
-
- 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
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)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Toys (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
796,677. Vocoder systems. WESTERN ELECTRIC CO., Inc. Oct. 7, 1955 [Oct. 20, 1954], No. 28214/57. Divided out of 796,676. Drawings to Specification. Class 40 (4). [Also in Group XIV (c)] The fundamental period of a complex waveform (e.g. speech) is obtained by applying the signal to a tapped delay line and comparing the undelayed wave with the waves obtained from the tappings and determining the delay for which the output waveform most nearly resembles that of the undelayed wave. The description is identical with part of Specification 796,676. Specification 466,327 also is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB28214/57A GB796677A (en) | 1954-10-20 | 1955-10-07 | Improvements in or relating to circuits for the analysis of speech currents |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US463467A US2908761A (en) | 1954-10-20 | 1954-10-20 | Voice pitch determination |
GB28214/57A GB796677A (en) | 1954-10-20 | 1955-10-07 | Improvements in or relating to circuits for the analysis of speech currents |
Publications (1)
Publication Number | Publication Date |
---|---|
GB796677A true GB796677A (en) | 1958-06-18 |
Family
ID=23840192
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28633/55A Expired GB796676A (en) | 1954-10-20 | 1955-10-07 | Improvements in or relating to circuits for the analysis and synthesis of speech currents |
GB28214/57A Expired GB796677A (en) | 1954-10-20 | 1955-10-07 | Improvements in or relating to circuits for the analysis of speech currents |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28633/55A Expired GB796676A (en) | 1954-10-20 | 1955-10-07 | Improvements in or relating to circuits for the analysis and synthesis of speech currents |
Country Status (2)
Country | Link |
---|---|
US (1) | US2908761A (en) |
GB (2) | GB796676A (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036268A (en) * | 1958-01-10 | 1962-05-22 | Caldwell P Smith | Detection of relative distribution patterns |
US3078345A (en) * | 1958-07-31 | 1963-02-19 | Melpar Inc | Speech compression systems |
US3094692A (en) * | 1958-10-01 | 1963-06-18 | Electro Mechanical Res Inc | Statistical telemetering |
US3090837A (en) * | 1959-04-29 | 1963-05-21 | Ibm | Speech bandwidth compression system |
US3083338A (en) * | 1959-11-10 | 1963-03-26 | Crosby Lab Inc | Speech communication system |
US3102236A (en) * | 1960-05-05 | 1963-08-27 | Collins Radio Co | Squelch circuit controlled by demodulated voice signal |
US3069507A (en) * | 1960-08-09 | 1962-12-18 | Bell Telephone Labor Inc | Autocorrelation vocoder |
US3109070A (en) * | 1960-08-09 | 1963-10-29 | Bell Telephone Labor Inc | Pitch synchronous autocorrelation vocoder |
US3036775A (en) * | 1960-08-11 | 1962-05-29 | Ibm | Function generators |
US3102928A (en) * | 1960-12-23 | 1963-09-03 | Bell Telephone Labor Inc | Vocoder excitation generator |
US3269921A (en) * | 1961-07-03 | 1966-08-30 | Phillips Petroleum Co | Computing and controlling the enthalpy of a process stream |
US3211832A (en) * | 1961-08-28 | 1965-10-12 | Rca Corp | Processing apparatus utilizing simulated neurons |
US3359409A (en) * | 1963-04-09 | 1967-12-19 | Hugh L Dryden | Correlation function apparatus |
US3405237A (en) * | 1965-06-01 | 1968-10-08 | Bell Telephone Labor Inc | Apparatus for determining the periodicity and aperiodicity of a complex wave |
US3321582A (en) * | 1965-12-09 | 1967-05-23 | Bell Telephone Labor Inc | Wave analyzer |
US3740476A (en) * | 1971-07-09 | 1973-06-19 | Bell Telephone Labor Inc | Speech signal pitch detector using prediction error data |
US3947638A (en) * | 1975-02-18 | 1976-03-30 | The United States Of America As Represented By The Secretary Of The Army | Pitch analyzer using log-tapped delay line |
US4004096A (en) * | 1975-02-18 | 1977-01-18 | The United States Of America As Represented By The Secretary Of The Army | Process for extracting pitch information |
US4015088A (en) * | 1975-10-31 | 1977-03-29 | Bell Telephone Laboratories, Incorporated | Real-time speech analyzer |
NL7908213A (en) * | 1979-11-09 | 1981-06-01 | Philips Nv | SPEECH SYNTHESIS DEVICE WITH AT LEAST TWO DISTORTION CHAINS. |
EP0076233B1 (en) * | 1981-09-24 | 1985-09-11 | GRETAG Aktiengesellschaft | Method and apparatus for redundancy-reducing digital speech processing |
US4591673A (en) * | 1982-05-10 | 1986-05-27 | Lee Lin Shan | Frequency or time domain speech scrambling technique and system which does not require any frame synchronization |
GB2139052A (en) * | 1983-04-20 | 1984-10-31 | Philips Electronic Associated | Apparatus for distinguishing between speech and certain other signals |
NL8400552A (en) * | 1984-02-22 | 1985-09-16 | Philips Nv | SYSTEM FOR ANALYZING HUMAN SPEECH. |
CA1229681A (en) * | 1984-03-06 | 1987-11-24 | Kazunori Ozawa | Method and apparatus for speech-band signal coding |
US5471527A (en) * | 1993-12-02 | 1995-11-28 | Dsc Communications Corporation | Voice enhancement system and method |
US7124075B2 (en) * | 2001-10-26 | 2006-10-17 | Dmitry Edward Terez | Methods and apparatus for pitch determination |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2151091A (en) * | 1935-10-30 | 1939-03-21 | Bell Telephone Labor Inc | Signal transmission |
US2243526A (en) * | 1940-03-16 | 1941-05-27 | Bell Telephone Labor Inc | Production of artificial speech |
US2401405A (en) * | 1944-05-20 | 1946-06-04 | Rca Corp | Method of and means for synchronizing wave generators |
US2508620A (en) * | 1944-11-09 | 1950-05-23 | Rca Corp | Multiplex pulse communication system |
NL77653C (en) * | 1944-12-23 | |||
US2705742A (en) * | 1951-09-15 | 1955-04-05 | Bell Telephone Labor Inc | High speed continuous spectrum analysis |
-
1954
- 1954-10-20 US US463467A patent/US2908761A/en not_active Expired - Lifetime
-
1955
- 1955-10-07 GB GB28633/55A patent/GB796676A/en not_active Expired
- 1955-10-07 GB GB28214/57A patent/GB796677A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2908761A (en) | 1959-10-13 |
GB796676A (en) | 1958-06-18 |
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