论文部分内容阅读
飞机、坦克和船舶等封闭座舱内部产生的强机械噪声严重地影响了语音通信系统,为此,提出了自适应噪声抵消与谱相减结合的单通道语音消噪算法,其基本原理是:先进行基于相关检测的自适应消噪处理,其后采用谱相减算法消除残留噪声。仿真结果表明:该算法对引擎噪声的消噪效果明显,并能有效地保持语音清晰度,可应用于机械噪声很强的语音通信系统。
The strong mechanical noise generated inside the closed cockpit of aircraft, tanks and ships seriously affects the voice communication system. Therefore, a single-channel speech noise reduction algorithm based on adaptive noise cancellation and spectral subtraction is proposed. The basic principle is: Based on the correlation detection of adaptive noise reduction processing, followed by spectral subtraction algorithm to eliminate residual noise. The simulation results show that this algorithm has obvious effect of de-noising the engine noise and can effectively maintain the speech intelligibility, which can be applied to the voice communication system with strong mechanical noises.