Sound synthesiser keyboard strikes sound remodelling having adjustable ADSR/low frequency oscillator delivering adjustable oscillating voltages with waves/frequencies.

• 1. 用于调节具有振动舌状件的声音产生装置的振动频率范围的方法 [P] . 中国专利： CN104240692B . 2018.10.02
• 2. 用于调节具有振动舌状件的声音产生装置的振动频率范围的方法 [P] . 中国专利： CN104240692A . 2014-12-24
• 3. OSCILLATED FREQUENCY CONTROL METHOD, VOLTAGE CONTROLLED PIEZOELECTRIC OSCILLATOR, VOLTAGE CONTROLLED PIEZOELECTRIC OSCILLATOR ADJUSTMENT SYSTEM AND METHOD FOR ADJUSTING VOLTAGE CONTROLLED PIEZOELECTRIC OSCILLATOR [P] . 日本专利： JP2000031741A . 2000-01-28

  机译： 振荡频率控制方法，电压控制的压电振荡器，电压控制的压电振荡器调整系统和调整电压控制的压电振荡器的方法

• 4. Adjustable frequency voltage controlled oscillator circuit - has first stage oscillating at constant frequency, followed by second stage with capacitor diode. [P] . 德国专利： DE4219990A1 . 1993-12-23

  机译： 可调频压控振荡器电路-第一级以恒定频率振荡，第二级带有电容器二极管。

• 5. SOUND WAVE SHIP-BOTTOM AUTI-FOULING APPARATUS AND LOW FREQUENCY SOUND WAVE OSCILLATOR [P] . 日本专利： JPH06227487A . 1994-08-16

  机译： 声波船舶底部自动故障排除装置和低频声波振荡器

• 1. Research on sound intensity probe whose frequency band can be adjusted [C] . Xiaolan Zhao, Huailin Ruan, Jiren Xu, 2011 International Conference on Electronic Mechanical Engineering and Information Technology . 2011
• 2. A study of the effects of ionization of air on the velocity of sound waves at ultrasonic frequencies. [D] . Eager, Sherman W. 1939
• 3. Characterization of Response Frequency for the Pressure-Sensitive Paint Based on Fluorine-Containing Polymer Matrixes Using Oscillating Sound Wave Technique [O] . Yun Shao, Liusheng Chen, Qi Liao, 2020
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• 5. Regional Dependence of Very Low-Frequency Sound Attenuation in the Deep Sound Channel: Correlation with Internal Wave Measurements. A Paper Presented at the Joint Meeting of the Acoustical Society of America and the Acoustical Soc [R] . Browning, D. G., Fecher, M. J., Mellen, R. H. 1981

• 1. 一种具有频率调节机制的旋转行波振荡器 [C] . Sun Lu ,孙路 ,Zhao Zhenyu . 第十六届计算机工程与工艺年会暨第二届微处理器技术论坛 . 2012