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一种DFM多通道MIDI乐音合成器芯片的设计
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作者 徐慧娟 徐自有 《科学技术与工程》 2009年第16期4791-4795,共5页
为了简化MIDI乐音产生过程,详细阐述了一种基于DFM的多通道MIDI乐音合成器芯片的整体架构及其关键技术。该乐音合成器芯片内置一个乐音存储器和一个寄存器,具有两种乐音产生模式:9种旋律音或者6种旋律音和5种节奏音,且两种模式下均可同... 为了简化MIDI乐音产生过程,详细阐述了一种基于DFM的多通道MIDI乐音合成器芯片的整体架构及其关键技术。该乐音合成器芯片内置一个乐音存储器和一个寄存器,具有两种乐音产生模式:9种旋律音或者6种旋律音和5种节奏音,且两种模式下均可同时输出不同的乐音。利用Cadence平台对各个子模块及整体电路进行仿真,结果表明各项指标均达到设计要求。 展开更多
关键词 乐音合成器 数字频率 调制midi
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Chorus from Two Brain Hemispheres with Chinese Pentatonic Scale
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作者 WU Dan YAO De-zhong 《Chinese Journal of Biomedical Engineering(English Edition)》 2014年第3期121-126,共6页
In order to listen to brain activity as a piece of music, we proposed a scale-free brainwave music (SFBM) technology, which translates the scalp EEG into music notes according to the power law of both EEG and music.... In order to listen to brain activity as a piece of music, we proposed a scale-free brainwave music (SFBM) technology, which translates the scalp EEG into music notes according to the power law of both EEG and music. In this paper, the methodology was further extended to chorus music of two channels from the two hemispheres. Firstly, EEG data from two channels symmetrically located on the left and fight hemispheres are translated into MIDI sequences by SFBM, respectively, where the EEG parameters modulate the pitch, duration and volume of each music note. Then, the two sequences are fiitered into a chorus of the Chinese pentatonic scale or the Western major scale. The resulted Chinese and Western music at different sleep stages illustrate distinct differences in harmony, and the music with Chinese pentatonic scale sounds more harmonious. 展开更多
关键词 brain music SCALE-FREE chinese pentatonic scale Western majorscale EEG sonification
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