ES2000520A6 - Metodo y aparato para sintetizar una senal transitoria de audio - Google Patents

Metodo y aparato para sintetizar una senal transitoria de audio

Info

Publication number
ES2000520A6
ES2000520A6 ES8600360A ES8600360A ES2000520A6 ES 2000520 A6 ES2000520 A6 ES 2000520A6 ES 8600360 A ES8600360 A ES 8600360A ES 8600360 A ES8600360 A ES 8600360A ES 2000520 A6 ES2000520 A6 ES 2000520A6
Authority
ES
Spain
Prior art keywords
coefficients
recursive filter
time
transient
filter
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
Application number
ES8600360A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
Original Assignee
Raytheon Co
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
Application filed by Raytheon Co filed Critical Raytheon Co
Publication of ES2000520A6 publication Critical patent/ES2000520A6/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves

Landscapes

  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Complex Calculations (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

SE DESCRIBEN UN METODO Y UN APARATO PARA SINTETIZAR UNA SEÑAL TRANSITORIA DE AUDIO, A CUYO FIN SE UTILIZA UN FILTRO RECURSIVO DE VARIACION CON EL TIEMPO, DONDE LOS MULTIPLICADORES QUE SIGUEN A LOS SUCESIVOS ELEMENTOS DE RETARDO DEL FILTRO TIENEN JUEGOS DE COEFICIENTES DE MATRIZ DE COVARIANZA NORMALIZADOS, QUE SON ALMACENADOS Y QUE HAN SIDO OBTENIDOS DE LOS COEFICIENTES DE AUTOCORRELACION NORMALIZADOS PARA CADA PLURALIDAD DE INTERVALOS DE TIEMPO DE LA SEÑAL TRANSITORIA MUESTREADA QUE HA DE SER SINTETIZADA A PARTIR DE LOS COEFICIENTES ALMACENADOS. LA CONSTANTE DE NORMALIZACION DURANTE UN INTERVALO SE APLICA TAMBIEN COMO UN FACTOR DE ESCALA AL FILTRO RECURSIVO. LA ENTRADA DEL FILTRO ES UNA SEÑAL DE GENERADOR DE RUIDO PSEUDOALEATORIO APLICADA AL FILTRO RECURSIVO AL REGIMEN DE MUESTREO. UNA PLURALIDAD DE INTERVALOS DE TIEMPO SUCESIVOS DE FILTRO RECURSIVO Y CON UN JUEGO DE COEFICIENTES PARA CADA INTERVALO DE TIEMPO PROPORCIONA LA TOTALIDAD DE LA SEÑAL TRANSITORIA SINTETIZADA.
ES8600360A 1985-07-18 1986-07-17 Metodo y aparato para sintetizar una senal transitoria de audio Expired ES2000520A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75622085A 1985-07-18 1985-07-18

Publications (1)

Publication Number Publication Date
ES2000520A6 true ES2000520A6 (es) 1988-03-01

Family

ID=25042526

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8600360A Expired ES2000520A6 (es) 1985-07-18 1986-07-17 Metodo y aparato para sintetizar una senal transitoria de audio

Country Status (5)

Country Link
EP (1) EP0209336B1 (es)
AU (1) AU588334B2 (es)
DE (1) DE3678054D1 (es)
ES (1) ES2000520A6 (es)
IL (1) IL79268A0 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005204A (en) * 1985-07-18 1991-04-02 Raytheon Company Digital sound synthesizer and method
CA2031965A1 (en) * 1990-01-02 1991-07-03 Paul A. Rosenstrach Sound synthesizer
US5278774A (en) * 1991-10-01 1994-01-11 Rockwell International Corporation Alarm for transient underwater events
US5299144A (en) * 1992-06-17 1994-03-29 Advanced Micro Devices, Inc. Architecture for covariance matrix generation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344148A (en) * 1977-06-17 1982-08-10 Texas Instruments Incorporated System using digital filter for waveform or speech synthesis
GB1603993A (en) * 1977-06-17 1981-12-02 Texas Instruments Inc Lattice filter for waveform or speech synthesis circuits using digital logic
FR2510288B1 (fr) * 1981-07-24 1986-10-31 Labo Cent Telecommunicat Procede et dispositif de generation de bruits sous-marins, en particulier pour la simulation de bruits sonar
GB2103908B (en) * 1981-07-31 1985-06-12 Gen Electric Co Plc Linear predictive coders

Also Published As

Publication number Publication date
AU588334B2 (en) 1989-09-14
DE3678054D1 (de) 1991-04-18
EP0209336B1 (en) 1991-03-13
EP0209336A3 (en) 1987-05-20
EP0209336A2 (en) 1987-01-21
IL79268A0 (en) 1986-09-30
AU5923086A (en) 1987-01-22

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000201