2) echo cancellation
回声抵消
1.
In view of the problem of noise reduction and echo cancellation based on vehicle hand-free phone system,according to the environment in the car,the article uses a kind of improved serial adapted echo cancellation machine structure.
针对车载免提系统去噪声去回声的问题,根据车内具体环境,采用改进的串联自适应回声抵消器结构及改进的谱减法来去除噪声,用带有DTD结构和改进的自适应NLMS算法来实现回声的去除,并用TI公司的DSP TMS320VC5402作为处理单元,实现了车载免提系统的去噪声去回声。
2.
In this paper,the delay and echo of the VoIP system is first discussed,in IP network,and then,the basic echo cancellation algorithm is reviewed.
文中首先论述了VoIP(Voice Over IP)技术中的延迟和回声问题,并回顾了IP电话中基本的回声抵消算法,最后结合IP网络的长延迟特性给出了一种基于延迟估计的回声抵消优化算法。
3.
The computer simulations confirm that the novel modeling system can be widely applied to echo cancellation sy.
计算机仿真表明,该建模系统在回声抵消、语音增强等领域均有很好的应用前景。
3) double-talk acoustic echo canceling
双端会话声回声抵消
4) echo canceller
回声抵消器
1.
We developed a low complexity echo canceller suitable for double talk cases on DSP TMS320DM642.
以TMS320DM642定点DSP为平台,实现了一种低复杂度并适应双端会话情况的回声抵消器。
5) acoustic echo canceller
回声抵消器
1.
Study of paralleled multi-channel acoustic echo canceller design;
并联式多级回声抵消器设计研究
2.
This paper analyses the principle of acoustic echo canceller and puts forward an efficient algorithm which is based on Block-Exact-Affine Projection Algorithm (BE-APA) .
针对回声抵消器的原理和特点,提出了一种有效的自适应滤波算法—精确块仿射投影算法,对算法进行了具体的分析,并与传统的仿射投影算法进行了比较。
3.
Acoustic Echo Canceller (AEC) is an indispensable device applied in many communication situations, such as hands-free wireless systems, Teleconferencing etc, where a loudspeaker and a microphone are placed within an enclosure.
同时使用麦克风和扬声器的通信场合，例如会议电视、免提电话等系统终端，回声抵消器是一个必不可少的设备。
6) Echo Canceling Method ECM
回声抵消法
补充资料：抵消
抵消
undoing
抵消(undoing)亦称“解脱作用”。一种在潜意识中操作的心理防御机制，指一个人以象征性的、反向的活动或事物来抵消个人所不能接受的和已经做了的事，希望以此解除自己的焦虑。例如，某些人做了对不起别人的事情后，热衷于宗教活动，或将靠不当手段得到的财富用来修造庙宇，借此减少罪恶感和自我谴责的内心痛苦。某些强迫症病人所表现的强迫性仪式动作，也可以看作“抵消”机制的表现形式。 (梁宝勇撰牟文博审)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条