数码录音笔通过对模拟信号的采样、编码将模拟信号通过数模转换器转换为数字信号，并进行一定的压缩后进行存储。而数字信号即使经过多次复制，声音信息也不会受到损失，保持原样不变。-After storing digital recording pen by sampling the analog signal, encoding the analog signal is converted by digital-to-analog converter into a digital signal, and a certain degree of compression. Digital signals even after repeated copying, will not suffer loss of audio information, intact unchanged.