摘要
目的:研究数字助听器中竞争语音情形下的语音增强算法。方法:针对语音增强算法中的麦克风阵列自适应波束形成算法,简要回顾了广义旁瓣消除器(GSC)结构的鲁棒性时域自适应波束形成算法,研究了频域GSC结构的自适应波束形成算法。结果:设计仿真实验,对比时、频域GSC的计算复杂度和收敛速度。结论:仿真结果显示,频域GSC结构的自适应波束形成算法与时域GSC对比,具有计算速度快、收敛性能好的优点。
Objective To deal with the digital hearing aids in competing talker situations using speech enhancement algorithm. Methods For adaptive beam forming algorithm using microphone array, the frequency-domain adaptive beamforming algorithm based on robustness time：-domain GSC structure was studied. Results The simulation was designed for the frequency-domain adaptive beamforming algorithm, and the computational complexity and convergence rate were compared between the frequency domain GSC and the time domain GSC. Condudon The simulation resuhs show that the frequency-domain GSC adaptive beamforming algorithm has a higher calculation speed and convergence rate, and thus has more research significance when compared with time-domain GSC. [Chinese Medical Equipment Journal, 2013,34 （5） ： 13-15,81 ]
出处
《医疗卫生装备》
CAS
2013年第5期13-15,81,共4页
Chinese Medical Equipment Journal
