SU710067A1 - Arrangement for output of speech information from digital computer - Google Patents

Description

(54) DEVICE FOR VYUODA OF VERBAL INFORMATION FROM DIGITAL COMPUTING MALTfflH

This invention relates to the field of computing and. designed to output speech information from digital computers (DVR). A device is known for outputting voice information from a digital computer comprising an excitation generator connected via modulators to band-pass filters 1. A disadvantage of this device is the low reliability of the output information. The closest technical solution to this invention is a device for outputting voice information from a digital computer comprising sequentially connected register, a switch, a digital-to-analog converter and a second switch connected to the memory elements, the first and which are connected to the excitation generator, the output of which is connected excitatory inputs of the modulators of the first group, the second group of modulators, an amplifier connected to the sound source 2. The disadvantage of such a device is the low accuracy of the output information, due to the distortion of the VINAM of the synthesized spectrum envelope caused by the deformations of the frequency response of the synthesizer band-pass filter system. The aim of the invention is to increase the reliability of the output information. . This is because the proposed device contains an adder, the inputs of which are connected to the memory elements, and the outputs - to the control inputs of the modulators of the first and second groups, the first block of orthogonal filters, the second block of orthogonal filters, the inputs of which are connected to the outputs of the modulators of the first groups, and the outputs - to the excitation inputs of the modulators of the second group, the outputs of which through the first block of orthogonal filters are connected to the input of the amplifier. The drawing shows a block diagram of the proposed device. The device contains a register 1, a first switch 2, a digital-to-analog converter 3, a second switch 4, memory elements 5, an adder 6, a first group of modulators 7, a second group of modulators 8, a generator 9 , the second block of orthogonal filters 10, the first block of orthogonal filters 11, the amplifier 12, the sound source 13.

The device works as follows.

Coded control signals through register 1 and the first switch

Alternately, they are fed to the diffraction channel. The converter 3, the levels of the anap signal received from the digital-analog converter 3, are fixed by memory elements 5. The sequence of connecting the memory elements 5 to the digital-analog converter 3 is required. recalculation by the adder 6, from the output of the latter, is supplied to control the modulators of the first and second groups 7 and 8. The voltages indicated during the operation cycle of the second switch 4 are kept constant. The voltage change on the memory elements 5 occurs on each successive cycle.

The recalculation of the control signals into the coordinate system of the orthogonal functions generated by the first and second blocks of the orthogonal filters 11 and 10 is performed by the adder 6.

To ensure high intelligibility of synthesized speech with a small amount of control information, two-step conversion of control signals is used.

At the first conversion stage in the modulators of the first group 7, the excitation signal from the excitation generator 9 is multiplied with the coefficients from the adder b. The received signals in the second block of orthogonal filters 10 are multiplied with the corresponding orthogonal functions and the results of the multiplication are summed up.

At the second conversion stage, the signal obtained at the output of the second block of orthogonal filters 10 is subjected to the same

after passing through the second group of modulators 8, the first block of orthogonal filters 11 passes through the signal.

Claims (2)

1. Kucherov V.Ya. and Guschenkov V.V. Computing systems with speech response, issue 9, M., 1973. 2. US patent W 3183303, cl. 179-1, 1965 (prototype).