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- permanent echo cancellation 固定回波消除
- The next three items are echo cancel,auto gain and noise suppress. 接下来的三种设置为EchoCancel（回声消除）、AutoGain（自动增益）和NoiseSuppress（噪声抑制）。
- The next three items are echo cancel, auto gain and noise suppress. 接下来的三种设置为echoCancel（回声消除）、AutoGain（自动增益）和NoiseSuppress（噪声抑制）。
- ADSL transmission equipment vendors use either frequency division multiplexing or echo cancellation to achieve this huge gain in throughput. ADSL传输设备供应商不是利用频分多路复用，就是利用回波消除，以获得吞吐量有大幅度的提高。
- If enabled, use echo cancelation. 19如果启用，将使用回声消除。
- After Echo Cancellation,the speech recognition correction rate and accuracy rate are improved by about 29% and 60% respectively. 回声抵消后 ;语音识别正确率和准确率分别提高约 2 9%25和 6 0%25 .
- Doubletalk detection (DTD) is used to sense whether the far-end speech is corrupted by the near-end speech in echo cancellation. 摘要声回波对消中，双端语音检测用以判定远端语音是否混和有近端语音。
- Adaptive algorithms are applied to real-time stereophonic acoustic echo cancellation to improve the communication quality of teleconference. 将自适应算法应用于实时立体声回波对消,以提高电话会议的通信质量。
- Therefore, quality audio, with true full-duplex communication and echo cancellation, and possibly enhanced with spatial queues, is necessary. 因此，必须有高质量的音频，即带有真全双工的通信和回声消除，以及空间队列等等。
- Advanced echo cancellation technology and superior noise suppression design provides a business quality conferencing experience. 高级回音消除技术和高级噪音抑制设计提供了商业级的会议体验。
- Echo cancellation, precoding, and equalization are common signal processing operations performed in wireline communications. 摘要:在有线通讯中，回音消除、预先编码、与等化是常用的信号处理运算。
- There are some problems such as no unique solution, large misalignment in stereophonic acoustic echo cancellation (SAEC) caused by high correlation between stereo signals. 摘要针对立体声回波对消中左右两声道的回波具有强相关性而导致自适应滤波器解不唯一、失配大等一系列问题，提出一种新的基于频移变换的去相关非线性预处理方法。
- This paper studied the mothod of acoustic echo cancellation based on Least Mean Square (LMS) and described an improved adaptive LMS algorithm with fast convergence speed. 本文研究了基于最小均方(Least Mean Squares,LMS)准则的自适应回声抵消算法,给出了一种具有更高收敛速度的改进自适应声学回声抵消算法。
- As an important part of a successful Acoustic Echo Cancellation, several Double-Talk detection methods are alsostudied and analyzed, including the Geigel algorithm. 最近，根据过滤器的频率作用，提出的一种方法，设置一个消除回声的重要部件。
- There are some problems such as no unique solution,large misalignment in stereophonic acoustic echo cancellation(SAEC) caused by high correlation between stereo signals. 针对立体声回波对消中左右两声道的回波具有强相关性而导致自适应滤波器解不唯一、失配大等一系列问题,提出一种新的基于频移变换的去相关非线性预处理方法。
- English: The Automatic Echo Cancellation level: Off, Low, Medium, High, Automatic Gain Compensation. Choosing Automatic Gain Compensation modulates the volume for best quality. 自动取消回应等级：关闭，低，中，高及自动增益补偿。选择自动增益补偿将自动取得最佳品质。
- Simulation results indicate that the DC-NLMS algorithm is optimal in adaptive echo cancellation as compared with NLMS, APA, and a previously developed algorithm in the literature. 计算机仿真结果表明，DC-NLMS算法在自适应回波抵消中的综合性能要优于NLMS算法、APA算法以及文献[7]的算法。
- Audiois an important component in tele-conferencing for describing and clarifying visual information. Therefore, quality audio, with true full-duplex communication and echo cancellation, and possibly enhanced with spatial queues, is necessary. 音频是远程会议中的一中重要组件,用于描述和阐述可视化信息。因此,必须有高质量的音频,即带有真全双工的通信和回声消除,以及空间队列等等。
- This thesis introduces the basic principle of HDSL access technology. It focuses on HDSL line coding / decoding, echo cancellation, auto adapted load balancing and the differences among them. 文章从理论层面简要介绍了高比特率数字用户线(HDSL)接入技术的基本原理,并对HDSL的线路编码、回波抵消和自适应均衡3项关键技术作了进一步阐述和横向比较。
- IntroductionIn the applications of multimedia communication, real-time speech transmission and hand-free telephone conference, echo cancellation is essential to improve the speech quality. 引 言在基于IP网络的多媒体通信、因特网上的语音实时传输、电话会议及免提电话通信系统中，回声抵消技术对提高语音传输质量、通话质量方面发挥着不可或缺的重要作用。
