摘要
介绍了可选模式声码器(SMV)算法的噪声抑制模块的原理,结合实例对该模块降噪的不足进行了分析。针对这些不足,结合谱减法的特点提出了改进方法。测试表明,所提出的改进算法能达到较好的降噪效果。
The principle of SMV(Selectable Mode Vocode) noise reduction module is introduces, and its shortcomings based on practical examples are analyzed A new way to improve noise reduction effect of the SMV module by combining it with the features of the spectral subtraction method is proposed. Test results shows that it can reduce noise better.
出处
《电声技术》
2010年第3期72-74,81,共4页
Audio Engineering