发明授权
US5159141A Apparatus for controlling reproduction states of audio signals recorded
in recording medium and generation states of musical sound signals
失效
用于控制记录在记录介质中的音频信号的再现状态和音乐声音信号的产生状态的装置
- 专利标题： Apparatus for controlling reproduction states of audio signals recorded in recording medium and generation states of musical sound signals
- 专利标题（中）： 用于控制记录在记录介质中的音频信号的再现状态和音乐声音信号的产生状态的装置
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申请号： US686030申请日： 1991-04-16
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公开(公告)号： US5159141A公开(公告)日： 1992-10-27
- 发明人: Akio Iba
- 申请人： Akio Iba
- 申请人地址： JPX Tokyo
- 专利权人： Casio Computer Co., Ltd.
- 当前专利权人： Casio Computer Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-43395[U] 19900423; JPX2-107287 19900423
- 主分类号： G10H1/20
- IPC分类号： G10H1/20
摘要：
This invention realizes a musical instrument, automatically transposing the pitches of the sounds reproduced from the musical instruments played by a performer, based on the pitch changes of the reproduced sounds caused by the changes in the reproduction speeds of audio equipment.Thus, this invention enables a performer to play an electronic musical instrument at a desired speed without having to retune it, when performer play musical instrument accompanying music sound reproduced by audio equipment.
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