Adaptive algorithms are applied to real-time acoustic echo cancellation to improve the communication quality of teleconference.

The acoustic echo cancellation technique and Speech Enhancement technique have become hotspots in the communication world.

论文首先研究了用于声音通信系统中的声回波抵消技术.

The results of computer simulation show that this method has a remarkable performance in echo cancellation.

实验结果表明,该方法具有良好的回波消除性能.

Yeah, I think echo chamber.

是的, 我想是回音壁那幅.

A device used underwater to produce pulses of sound, as for an echo sounder.

声脉冲发送器置于水下产生声脉冲的装置, 如回音器中的装置.

The simulated teaching experiment system of echo sounder by computer is put forward in this paper.

提出了一种计算机模拟船用回声测深仪教学实验系统.

Marine Equipment, Satellite Equipment, Gps, Radar, Echo Sounder Marine Equipment.

采购产品海洋设备, 卫星设备, 全球定位系统, 雷达, 测深仪船舶设备.

Inspection installation and water tightness transducer of echo sounder on berth.

测深仪换能器船台安装和水密性检查.

Echocardiogram test uses sound waves to create a moving picture of your heart.

超声波心动图(超声波心动描记术).

The most appropriate study to obtain in patients suspected of having PH is an echocardiogram.

最适当的研究就是通过超声心电图来检查可疑病人.

During an echocardiogram, reflected sound waves outline the heart's structure completely.

在心回波图检查时, 反射回来的声波会勾画出心脏的整个结构.

You should have an echocardiogram every 6 –10 weeks throughout pregnancy.

在怀孕期间,患马凡氏症的孕妇还应该每隔6~10到医院做一次超声波心动图检查.

The most common imaging tests are the nuclear stress test and the stress echocardiogram.

最常见的影像检查就是核压力测试或超声心动图.

Results There were no statistical differences between the changes of echocardiogram before and after PCI ( P & gt; 0.05 )

结果43例冠心病患者总体PCI术前及术后第4天UCG的变化不明显 ( P & gt; 0.05 ).

The diagnosis was mainly based on electrocardiogram and echocardiogram.

心电图及超声心动图是正确诊断的重要方法.

The most useful test for diagnosing MVP is an echocardiogram with Doppler ultrasound.

有一种检查对MVP诊断最为关键,那就是带有多普勒超声波的超声波心动图检查.

An echocardiogram also might be misleading.

心脏超声检查也可能造成误导.

Diagnosis of ALCAPA syndrome can be made by echocardiogram , but this is not fully satisfactory.

此疾病可经由从心臓超音波诊断, 但较不可靠.

The echocardiography in 13 cases all showed left ventricular enlargement.

13例心脏超声检查示均有左心室增大.

Conclusion Echocardiography plays an important role in the diagnosis of cardiac myxorna.

随访6个月~10年,未见肿瘤复发和远处种植转移.

Objective: To determine the feasibility of measurement coronary flow reserve ( CFR ) by transthoracic Doppler echocardiography ( TTE ).

目的: 探讨应用经胸超声心动图 ( TTE)检测冠状动脉前降支(LAD ) 远段血流评价冠状动脉血流储备 ( CFR ) 的方法学.