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Machine translation
1. (WO1981002957) AUDIO ECHO CIRCUITS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/002957    International Application No.:    PCT/AU1981/000041
Publication Date: 15.10.1981 International Filing Date: 10.04.1981
IPC:
G10H 1/02 (2006.01), G10K 15/12 (2006.01), H03H 11/26 (2006.01)
Applicants:
Inventors:
Priority Data:
3087/80 11.04.1980 AU
Title (EN) AUDIO ECHO CIRCUITS
(FR) CIRCUITS SONORES D"ECHOS
Abstract: front page image
(EN)Audio echo circuits in which the difference between the times of arrival at the place of mixing (F) of the undelayed signal and each delayed signal is the same for all frequences. Different channels having different time delays are matched in their phase shift characteristics. The phase of selected echoes may be reversed. Double tracing circuits, i. e. echo circuits with 25-100 ms delay difference, and differential double tracking circuits, i.e. circuits involving subtraction of differently delayed signal versions, and the duration control thereof by a ramp control signal or a proximity detector or an expression pedal having proximity control.
(FR)Circuits sonores d"echos dans lesquels la difference entre les temps d"arrivee au point de mixage (F) du signal non retarde et de chaque signal retarde est le meme pour toutes les frequences. Des canaux differents possedant des retards de temps differents sont assortis dans leurs caracteristiques de dephasage. La phase des echos selectionnee peut etre renversee. Des circuits a double asservissement, c"est-a-dire des circuits d"echos avec une difference de retard de 25 a 100 ms, et des circuits a double asservissement differentiels, c"est-a-dire des circuits impliquant la soustraction de versions d"un signal retarde de maniere differente, et la commande de la duree de celui-ci par un signal de commande de rampe ou un detecteur de proximite ou une pedale d"expression possedant une commande de proximite.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)