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Machine translation
1. (WO1981003566) ARTIFICIAL REVERBERATION GENERATOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/003566    International Application No.:    PCT/AT1981/000009
Publication Date: 10.12.1981 International Filing Date: 23.04.1981
IPC:
G10K 15/12 (2006.01)
Applicants:
Inventors:
Priority Data:
1418/81 26.03.1981 AT
Title (EN) ARTIFICIAL REVERBERATION GENERATOR
(FR) GENERATEUR DE REVERBERATION ARTIFICIELLE
Abstract: front page image
(EN)The artificial reverberation generator employs a unidimensional wave guide (1) achieved by means of digital circuits, comprising at least two line sections of different lengths. Each section is comprised of two parallel delay digital arrangements, one for each propagation direction (2, 3), and between two adjacent sections there is arranged at least one three access adaptor used in the digital filtering art. Two out of the three accesses of the adaptor are each connected to one of the two adjacent terminations of said two line sections, whereas the depending access of a three access adaptor is connected to a selective absorber made by using the digital technique. With the digital realisation of a unidimensional wave guide provided with reflection points and absorbers, it is possible to obtain a diffuse reverberation and with a programmable frequential response of the reverberation time of a signal without having to support a reduction of the signal-to-rate ratio by limit cycles.
(FR)Le generateur de reverberation artificielle utilise un guide d"ondes unidimensionnel (1) realise a l"aide de circuits numeriques, comportant au moins deux troncons de ligne de longueur differente. Chaque troncon est constitue de deux agencements numeriques de temporisation paralleles, un pour chaque direction de propagation (2, 3), et entre deux troncons adjacents est dispose au moins un adaptateur a trois acces issu de la technique de filtrage numerique. Deux des trois acces de l"adaptateur sont relies chacun a une des deux terminaisons adjacentes de ces deux troncons de ligne, tandis que l"acces dependant d"un adaptateur a trois acces est connecte a un absorbeur selectif realise en technique numerique. Avec la realisation numerique d"un guide d"ondes unidimensionnel muni de points de reflexion et d"absorbeurs, il est possible d"obtenir une reverberation diffuse et avec une reponse frequentielle programmable du temps de reverberation d"un signal sans devoir supporter une reduction du rapport signal sur bruit par des cycles limite.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)