A device for the treatment of the speech to equipment 10 - receiver radioelectric adapted for the transmission and reception of the speech

摘要

Treatment device of the speech to equipment 10 - receiver radioelectric adapted for the transmission and reception of the speech. / p & & p & the device 1 comprises a compression circuit 11 of the dynamic range of the speech signal formed by at least one variable attenuator of 15 to maintain the level of the modulation of the speech at low pressure constant during the transmission of speech, and an expander 18 for restore at the reception level of speech before its compression, as well as a device 17 for the control of the expander sensitive to the value of the attenuation introduced by the attenuator 15 of emission and transmitted on a canal radioelectric of the frequency of the auxiliary equipment. The compression circuit 11 is a circuit of the incremental a compression action early in the time. The device further comprises a filtering circuit 13 of the logic level of speech transmission in order to control the compression circuit 11 by means of attenuation is not constant in order to maintain the level of the speech of a constant pressure and to be transmitted by the auxiliary channel, the values of attenuation corresponding incrementales. The device 17 for the control of the expander 18 comprises an interpolation circuit 30, 33, 37, 38, 39 in order to correct the errors of the signals receipts presumptions representative of the values of the attenuation introduced, the transmission by the logic circuit 13.