摘要
根据激光阵列和传统竖琴的特征,文章提出一种激光竖琴的设计方案。该竖琴采用多个大功率的激光头模拟竖琴的琴弦,光敏电阻用于接收信号,LM393比较器等模拟电路组成的信号调理模块用于将采集到的信号调理成核心控制模块可识别的数字信号;当芯片接收到信号后,对其进行解析,而后将解析的信号向音频处理模块发送命令;当音频处理模块接收到命令后,利用多维度小波变换包、深度学习等算法组成的音频信号重构技术模拟各种音色,从而使得激光头发射的激光束来模拟琴弦,通过遮挡相应激光束可模拟乐器演奏。
According to the characteristics of laser array and traditional harp,a design scheme of laser harp is proposed in this paper.The harp uses multiple high-power laser heads to simulate the harp strings.Photosensitive resistors are used to receive signals.The signal conditioning module composed of ANALOG circuits such as LM393 comparator is used to adjust the collected signals into digital signals that can be recognized by the core control module.When the chip receives the signal,it makes an analysis,and then sends the command to the audio processing module.When the audio processing module receives the command,the audio signal reconstruction technology composed of multi-dimensional wavelet transform packet and deep learning algorithm is used to simulate various timbre,so that the laser beam emitted by the laser head can simulate the string,and the musical instrument playing can be simulated by blocking the corresponding laser beam.
出处
《科技创新与应用》
2022年第14期74-77,共4页
Technology Innovation and Application
关键词
激光阵列竖琴
比较器调理电路
音频解码
音频信号重构技术
laser array harp
comparator conditioning circuit
audio decoding
audio signal reconstruction technology
