CN2303357Y

CN2303357Y - Fundamental tone synchronous wave overlying type Chinese language speech synthesis and conversion device

Info

Publication number: CN2303357Y
Application number: CN 97215108
Authority: CN
Inventors: 吕士楠; 初敏; 关定华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-28
Filing date: 1997-04-28
Publication date: 1999-01-06
Anticipated expiration: 2007-04-28

Abstract

The utility model relates to a fundamental tone synchronous wave overlying type Chinese language speech synthesis and conversion device, which is composed of a host bus, a DSP, etc. The utility model is characterized in that the DSP comprises an interface circuit composed of a parallel data chip, a serial data chip and a plurality of logic gates; the circuit realizes the function of the conversion parallel of data signal to serial data signal. The device of the utility model can realize the software design of Chinese language speech synthesis and conversion of fundamental tone synchronous wave overlying, as a result, the Chinese language synthesized approaches closer to human tones.

Description

Pitch synchronous waveform stack Chinese language language change-over device

The utility model relates to a kind of voice compound technology device, especially a kind of pitch synchronous waveform stack Chinese language language change-over device.

In existing domestic and international speech synthesis technique, mainly contain parameter synthetic technology and Waveform Synthesis Technology.The good effect of this two classes technology is conspicuous, but, with regard to its synthetic tone color, because lacking more technical conditions near analog sound in the synthetic technology makes it synthetic effect and than natural sensual pleasure bigger gap is arranged still, especially by means of Computer Multimedia Technology, also do not hear the report of its practicality based on the Chinese language language change-over device of pitch synchronous waveform superimposing technique.

The purpose of this utility model provides a kind of pitch synchronous waveform stack Chinese language language change-over device based on Computer Multimedia Technology.In this device be with digital signal processor as the groundwork unit, the digital audio signal that produces by its after D/A converts simulating signal to again through power amplifier output naturalness rhythm signal clearly.

The purpose of this utility model is achieved in that a kind of pitch synchronous waveform stack Chinese language language change-over device.It comprises the multimedia computer host bus, clock, Clock dividers, host bus interface, digital signal processor, program storage, data-carrier store, D/A sound data storer, a left side, right sound equipment output filter, push-pull power amplifier, it is characterized in that, described digital signal processor has parallel data chip IC 1 and serial data chip IC 5, between IC1 and IC5, be provided with chip IC 2, IC3, IC4 and logic gate u1, u2, u3, u4, u5, u6, u7, wherein: the pin DEN end of IC1 joins with the pin G2 end of IC3, the pin A0/PA0 of IC1, A1/PA1, A2/PA2 end respectively with the pin A of IC2, B, the C end joins, the pin CLK OUT end of IC1, INT end respectively with the pin MSTR CLK end of IC5, the EODX end joins; The pin FSX of IC5 end joins with an input end, the pin S1 end of IC3, IC4, the IC2 pin G1 end of logic u6 respectively, the pin DX end of IC5 joins with the pin QH end of IC3, the pin SHIFT CLK end of IC5 joins with another input end of logic gate u6, and the pin DR end of IC5 joins with the pin 1D end of IC6.When the data-signal of parallel data chip IC 1 is transported to serial data chip IC 5 respectively by its passage DO-D15, chip IC 3 between IC1 and IC5, IC4 have played the effect that parallel data signal is converted to serial data signal, and the function of digital-to-analog signal conversion and sound equipment output filter also is to finish in the inside of chip IC 5.

Owing to adopted above-mentioned technical scheme, especially in this device, adopted the interface circuit technology that is constituted by between the chip IC 1 to IC5, the analog sound that makes this device produce more approaches natural-sounding.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the hardware one-piece construction synoptic diagram of this device,

Fig. 2 is the interface circuit figure of the digital signal processor in this device,

Fig. 3 is the sound equipment output power amplifier circuit structure diagram in this device, among the figure: 1-host bus, 2-clock, the 3-Clock dividers, 4-host bus interface, 5-digital signal processor, the 6-program storage, 7-data-carrier store controller, 8, the 9-D/A, 10-sound data storer, 11, the 12-programmable filter, the 13-push-pull power amplifier, IC1-TMS32010, IC2-SN74LS138, IC3-SN74LS299, IC4-SN74LS299, IC5-TLC32044.

By Fig. 1, a kind of pitch synchronous waveform stack of 2,3 the utility model Chinese language language change-over device.It comprises multimedia computer host bus 1, clock 2, Clock dividers 3, host bus interface 4, digital signal processor 5, program storage 6, data-carrier store controller 7, D/A 8,9, sound data storer 10, a left side, right sound equipment output filter 11,12 push-pull power amplifiers 13, it is characterized in that, described digital signal processor 5 has parallel data chip IC 1 and serial data chip IC 5, between IC1 and IC5, be provided with chip IC 2, IC3, IC4, logic gate u1, u2, u3, u4, u5, u6, u7, wherein: the pin DEN end of IC1 joins with the pin G2 end of IC3, the pin A0/PA0 of IC1, A1/PA1, A2/PA2 end respectively with the pin A of IC2, B, the C end joins, the pin CLK OUT end of IC1, INT end respectively with the pin MSTR CLK end of IC5, the EODX end joins; The pin FSX of IC5 end joins with an input end, the pin S1 end of IC3, IC4, the IC2 pin G1 end of logic u6 respectively, the pin DX end of IC5 joins with the pin QH end of IC3, the pin SHIFT CLK end of IC5 joins with another input end of logic gate u6, and the pin DR end of IC5 joins with the pin 1D end of IC6.The push-pull power amplifier 13 that above-mentioned left and right sound equipment output filter is linked to each other, constitute by preposition exciter tube T1, exciter tube T2, efferent duct T3, T4, wherein, the emitter of T1 divides five the tunnel, one the tunnel joins through capacitor C 3 and the base stage of T1, and two the tunnel through resistance R 2 ground connection, and three the tunnel join through the emitter output terminals of resistance R 4 with T4, four the tunnel join through resistance R 5 negative pole ends with capacitor C 6, and five the tunnel join with the emitter capacity C8 positive terminal of emitter resistance R9, the T4 of T3 respectively through resistance R 5.In this programme, digital signal processor be provided with respect to host bus 1 is independent, only be communicated with 25MHZ clock 2 with a passage, and its data output end must be connected with program storage 6, data-carrier store controller 7, D/A 8,9 simultaneously, have only D/A 8,9 to be communicated with programmable filter 11,12 respectively, and drive push-pull power amplifier 13 by programmable filter 11,12.IC1 adopts parallel data entry mode in digital signal processor 5, and IC5 then is the serial data input mode, and the conversion of their parallel/serial data transfer modes between the two realizes by IC3, IC4.Power amplifier 13 receives the signal from prime programmable filter 11,12, and efferent duct T3, T4 through preposition exciter tube T1, exciter tube T2 and back grade simulate sound with Chinese and export loudspeaker to.Host bus 1 is meant 16 buses in such scheme, program storage 6 can adopt the 4K word, D/A 8,9 all can adopt the D/A of 14bit, and multimedia computer can be selected 486 types for use, and whole device all is to move in the software environment of pitch synchronous waveform stack Chinese language language.

Claims

1. pitch synchronous waveform stack Chinese language language change-over device, it comprises multimedia computer host bus (1), clock (2), Clock dividers (3), host bus interface (4), digital signal processor (5), program storage (6), data-carrier store controller (7), D/A (8,9), sound data storer (10), a left side, right sound equipment output filter (11,12), push-pull power amplifier (13), it is characterized in that, described digital signal processor (5) has parallel data chip IC 1 and serial data chip IC 5, between IC1 and IC5, be provided with chip IC 2, IC3, IC4 and logic gate ul, u2, u3, u4, u5, u6, u7, wherein: the pin DEN end of IC1 joins with the pin G2 end of IC3, the pin AO/PAO of IC1, A1/PA1, A2/PA2 end respectively with the pin A of IC2, B, the C end joins, the pin CLK OUT end of ICl, INT end respectively with the pin MSTR CLK end of IC5, the EODX end joins; The pin FSX of IC5 end joins with an input end, the pin S1 end of IC3, IC4, the IC2 pin G1 end of logic u6 respectively, the pin DX end of IC5 joins with the pin QH end of IC3, the pin SHIFTCLK end of IC5 joins with another input end of logic gate u6, and the pin DR end of IC5 joins with the pin 1D end of IC6.

2. pitch synchronous waveform stack Chinese language language change-over device according to claim 1, it is characterized in that, an above-mentioned left side, right sound equipment output filter is linked to each other recommends acrobatic skill rate amplifier (13), by preposition exciter tube T1, exciter tube T2, efferent duct T3, T4 constitutes, wherein, the emitter of T1 divides five the tunnel, one the tunnel joins through capacitor C 3 and the base stage of T1, two the tunnel through resistance R 2 ground connection, three tunnel emitter output terminals through resistance R 4 and T4 join, four the tunnel join through resistance R 5 negative pole ends with capacitor C 6, the five tunnel through resistance R 5 respectively with the emitter resistance R9 of T3, the emitter capacity C8 positive terminal of T4 joins.