JPS6092297U

JPS6092297U - Musical sound generation device using voice input

Info

Publication number: JPS6092297U
Application number: JP1983184863U
Authority: JP
Inventors: 進高島
Original assignee: カシオ計算機株式会社
Priority date: 1983-11-30
Filing date: 1983-11-30
Publication date: 1985-06-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図は回路構
成図、第２図はタイミング信号波形図である。１１・・・ローパスフィルタ、１２・・・ＡＧＣ回路、
１２ａ・・・増幅回路、１２ｂ・・・直流変換回路、１
２Ｃ・・・比較器、１２ｄ・・・積分回路、１４・・・
Ａ−Ｄ便換回路、１８・・・量子化部、１９・・・有音
無音判別部、２０・・・ピッチ抽出部、２１・□・・音
階コード発生部、２２・・・楽音発生部。The drawings show one embodiment of the present invention; FIG. 1 is a circuit configuration diagram, and FIG. 2 is a timing signal waveform diagram. 11...Low pass filter, 12...AGC circuit,
12a...Amplification circuit, 12b...DC conversion circuit, 1
2C...Comparator, 12d...Integrator circuit, 14...
A-D exchange circuit, 18... Quantization section, 19... Speech/non-sound discrimination section, 20... Pitch extraction section, 21... Scale code generation section, 22... Musical tone generation section .

Claims

[Scope of utility model registration request]

an AGC circuit that performs automatic gain control on audio signal input; a first gate circuit that selects the output of this AGC circuit at a predetermined timing; and an AGC circuit in the AGC circuit.
a second gate circuit that selects a control voltage at a timing different from that of the first gate circuit; an A-D conversion circuit that converts the outputs of the first and second gate circuits into digital signals; - means for generating a scale code by extracting audio pitch information from a signal outputted from the D exchange circuit at the operation timing of the first gate circuit;
voice/non-sound determining means for determining utterance/non-speech with respect to a signal output from the conversion circuit at the operating timing of the second gate circuit; and signals from the utterance/non-sound determining means and the scale code generating means. 1. A musical sound generating device using voice input, comprising means for generating musical sounds.