FR2341234B2 - - Google Patents
Info
- Publication number
- FR2341234B2 FR2341234B2 FR7703141A FR7703141A FR2341234B2 FR 2341234 B2 FR2341234 B2 FR 2341234B2 FR 7703141 A FR7703141 A FR 7703141A FR 7703141 A FR7703141 A FR 7703141A FR 2341234 B2 FR2341234 B2 FR 2341234B2
- 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
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/662—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a time/frequency relationship, e.g. time compression or expansion
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2309987A DE2309987C2 (de) | 1973-02-28 | 1973-02-28 | System für die Übertragung breitbandiger Signale |
DE19732321230 DE2321230C2 (de) | 1973-04-26 | 1973-04-26 | System zum Übertragen breitbandiger Tonsignale |
DE2605306A DE2605306C2 (de) | 1976-02-11 | 1976-02-11 | Verfahren und Schaltungsanordnung zum störungsfreien Empfang des Basisbandes eines Basisband-Vocoders |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2341234A2 FR2341234A2 (fr) | 1977-09-09 |
FR2341234B2 true FR2341234B2 (fr) | 1981-02-06 |
Family
ID=27185099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7703141A Granted FR2341234A2 (fr) | 1973-02-28 | 1977-02-04 | Systeme de transmission de signaux acoustiques a large bande |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2341234A2 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2707443B1 (fr) * | 1993-07-06 | 1995-09-29 | Safare Crouzet | Procédé de transmission acoustique sous-marine et dispositif pour l'amélioration de l'intelligibilité de telles transmissions. |
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1977
- 1977-02-04 FR FR7703141A patent/FR2341234A2/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2341234A2 (fr) | 1977-09-09 |