| 摘要 |
PROBLEM TO BE SOLVED: To synthesize an excellent response, high quality voice by dynamically cutting out a waveform from a first signal, extracting characteristic information, generating a coefficient, convolution operating it to a second signal and generating the synthetic signal. SOLUTION: A digital signal processor 2-1 performs control of voice pressure and correction of tone quality to the voice signal, and cuts out the voice waveform at a prescribed interval so as to become the coefficient sent to a convolution circuit 3. The digital signal processor 2-2 performs the control of voice pressure and the correction of tone quality to an instrumental sound signal to transfer them to the convolution circuit 3 as the data. The convolution circuit 3 convolution operates these outputs as the data. The coefficient cut out with the digital signal processor 2-1 is stored in a memory RAM 4 for the present, and is switched to the convolution circuit 3 by the control of the CPU 5 to be supplied. The output of the convolution circuit 3 is applied with the effect such as the correction of the tone quality and the echo by the digital signal processor 6, and is inversely converted to an analog signal by a DA converter 1 to become the synthetic voice output. |
