It produces an inverted sound wave to cancel out unwanted noise in the headphone signal.
随后它便产生逆向声波从而消除耳机信号中不需要的噪声。
2
This paper introduces an objective way to evaluate the quality of digital voice by means of LPC logarithmic inverted spectrum-envelope offset and artificial composite voice signal;
介绍了一种利用LPC对数倒频谱包络偏离量和人工合成语音信号对数字语音质量进行客观评价的方法；
3
Firstly, the chaotic state of weak signal detection method was proposed, based on the inverted sawtooth map model and symbolic dynamics description methods.