NL7407347A - - Google Patents

Info

Publication number
NL7407347A
NL7407347A NL7407347A NL7407347A NL7407347A NL 7407347 A NL7407347 A NL 7407347A NL 7407347 A NL7407347 A NL 7407347A NL 7407347 A NL7407347 A NL 7407347A NL 7407347 A NL7407347 A NL 7407347A
Authority
NL
Netherlands
Application number
NL7407347A
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
Priority claimed from DE2328316A external-priority patent/DE2328316C2/de
Priority claimed from DE19732328317 external-priority patent/DE2328317C2/de
Application filed filed Critical
Publication of NL7407347A publication Critical patent/NL7407347A/xx

Links

Classifications

    • 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
    • H04B1/667—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 division in frequency subbands
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Noise Elimination (AREA)
NL7407347A 1973-06-04 1974-05-31 NL7407347A (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2328316A DE2328316C2 (de) 1973-06-04 1973-06-04 Wiedergabeseite eines Systems zum Übertragen von breitbandigen Musik- und/oder Sprachsignalen
DE19732328317 DE2328317C2 (de) 1972-02-24 1973-06-04 System zum Übertragen von breitbandigen Musik- und/oder Sprachsignalen

Publications (1)

Publication Number Publication Date
NL7407347A true NL7407347A (xx) 1974-12-06

Family

ID=25765247

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7407347A NL7407347A (xx) 1973-06-04 1974-05-31

Country Status (10)

Country Link
US (1) US3946162A (xx)
JP (1) JPS5054207A (xx)
AR (1) AR201379A1 (xx)
BR (1) BR7404559D0 (xx)
CH (1) CH573192A5 (xx)
ES (1) ES426963A1 (xx)
FR (1) FR2232031B3 (xx)
GB (1) GB1425156A (xx)
IT (1) IT1046578B (xx)
NL (1) NL7407347A (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051331A (en) * 1976-03-29 1977-09-27 Brigham Young University Speech coding hearing aid system utilizing formant frequency transformation
FR2990580A1 (fr) * 2012-05-10 2013-11-15 France Telecom Procedes et dispositifs de transmission et de reception d'un signal large bande, programme d'ordinateur correspondant.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102929A (en) * 1958-05-03 1963-09-03 Philips Corp Speech-signal transmission system
NL245178A (xx) * 1958-11-17
US3116374A (en) * 1960-08-09 1963-12-31 Gen Dynamics Corp Voice bandwidth reduction transmission system
US3321582A (en) * 1965-12-09 1967-05-23 Bell Telephone Labor Inc Wave analyzer

Also Published As

Publication number Publication date
US3946162A (en) 1976-03-23
IT1046578B (it) 1980-07-31
ES426963A1 (es) 1976-09-01
BR7404559D0 (pt) 1975-01-21
JPS5054207A (xx) 1975-05-13
FR2232031A1 (xx) 1974-12-27
AU6965874A (en) 1975-12-04
CH573192A5 (xx) 1976-02-27
AR201379A1 (es) 1975-03-07
GB1425156A (en) 1976-02-18
FR2232031B3 (xx) 1977-04-08

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed