FR2383495B1 - - Google Patents
Info
- Publication number
- FR2383495B1 FR2383495B1 FR7707190A FR7707190A FR2383495B1 FR 2383495 B1 FR2383495 B1 FR 2383495B1 FR 7707190 A FR7707190 A FR 7707190A FR 7707190 A FR7707190 A FR 7707190A FR 2383495 B1 FR2383495 B1 FR 2383495B1
- Authority
- FR
- France
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
- G01H3/04—Frequency
- G01H3/08—Analysing frequencies present in complex vibrations, e.g. comparing harmonics present
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707190A FR2383495A1 (en) | 1977-03-10 | 1977-03-10 | Analyser for acoustic spectral densities - uses eight parallel channel decoders with respective passband filters coupled with logic circuit with integration and summation stages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707190A FR2383495A1 (en) | 1977-03-10 | 1977-03-10 | Analyser for acoustic spectral densities - uses eight parallel channel decoders with respective passband filters coupled with logic circuit with integration and summation stages |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2383495A1 FR2383495A1 (en) | 1978-10-06 |
FR2383495B1 true FR2383495B1 (en) | 1980-02-29 |
Family
ID=9187913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7707190A Granted FR2383495A1 (en) | 1977-03-10 | 1977-03-10 | Analyser for acoustic spectral densities - uses eight parallel channel decoders with respective passband filters coupled with logic circuit with integration and summation stages |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2383495A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5619616A (en) * | 1994-04-25 | 1997-04-08 | Minnesota Mining And Manufacturing Company | Vehicle classification system using a passive audio input to a neural network |
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1977
- 1977-03-10 FR FR7707190A patent/FR2383495A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2383495A1 (en) | 1978-10-06 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |