echo cancellation造句
造句與例句
手機(jī)版
- Adaptive echo cancellation and noise reduction algorithm
一種自適應(yīng)回聲抵消和噪聲消除算法 - Study on interference - free stereophonic acoustic echo cancellation algorithm
抗噪立體聲回波對(duì)消算法研究 - The technology of echo cancellation has been a very active research field in recent years
本文主要研究用于聲音通訊系統(tǒng)中的聲回波抵消技術(shù)。 - A built - in echo cancellation system minimizes unwanted echoes during a video conference
內(nèi)置的回音消除系統(tǒng)最大程度的減小了視頻會(huì)議中不需要的回音。 - Research on de - cross - correlation methods based on time axis perturbation in multi - channel acoustic echo cancellation
多路聲回波對(duì)消中基于時(shí)基微擾的去互相關(guān)法的研究 - So acoustic echo cancellation ( aec ) technique has become a hot issue of competition in the famous communication company all over the world
因此，回波消除技術(shù)也就成為世界各大通訊公司競爭的熱點(diǎn)技術(shù)之一。 - In chapter , the echo cancellation technique in ip gateway is studied . after that , we discuss the implement of echo canceller based on dsp
最后研究ip電話網(wǎng)關(guān)上的回聲消除技術(shù)，給出基于dsp的回聲消除器的軟硬件實(shí)現(xiàn)。 - Adsl transmission equipment vendors use either frequency division multiplexing or echo cancellation to achieve this huge gain in throughput
Adsl傳輸設(shè)備供應(yīng)商不是利用頻分多路復(fù)用，就是利用回波消除，以獲得吞吐量有大幅度的提高。 - Based on those process algorithms , the other important applications , such as speech coding in gsm system , echo cancellation , speaker recognition , are discussed
在此基礎(chǔ)上，對(duì)gsm系統(tǒng)中的編碼、回聲抵消、說話人識(shí)別和交通車輛內(nèi)部的噪聲抵消應(yīng)用進(jìn)行了研究。 - To improve the speech quality , it is necessary to adopt such speech processing techniques like speech compression , voice activity detection , echo cancellation , jitter buffer and so on
為了提高語音質(zhì)量,需要采取一系列的語音處理技術(shù),主要包括語音壓縮技術(shù)、靜音處理技術(shù)、回聲消除技術(shù)、抖動(dòng)緩沖技術(shù)等。 - It's difficult to see echo cancellation in a sentence. 用echo cancellation造句挺難的
- Dsp performs voice process part , including voice compression , echo cancellation , tone activity detection , tone detection and generation , voice packet , these are signal process scope
Dsp處理器完成語音處理的部分，包含了語音壓縮、回波消除、撥號(hào)音的產(chǎn)生、語音打包等等，這些基本上都屬于信號(hào)處理的范疇。 - In chapter 4 , various implementation issues associated with an acoustic echo cancellation system , such as double - talk detection , finite precision effects , nonlinear processing and howling detection and control are discussed
第四章主要討論了聲回波抵消系統(tǒng)中的各種實(shí)現(xiàn)問題，比如雙講檢測(cè)、有限精度的影響、非線性處理和自激信號(hào)的檢測(cè)與控制。 - The primary advances in speech and audio signal processing that contributed to multimedia applications are in the areas of speech and audio signal compression , speech synthesis , acoustic processing , echo control and network echo cancellation
語音和音頻信號(hào)處理的改進(jìn)對(duì)多媒體應(yīng)用的貢獻(xiàn)在下述范圍：語音和音頻信號(hào)壓縮、語音合成、聲學(xué)處理、回聲控制以及網(wǎng)絡(luò)回聲消除。 - Researching on echo cancellation algorithm , the author has succeeded in developing a c language program for such an algorithm , which works well and will be a good foundation for its dsps implementation in the next step
結(jié)合3g系統(tǒng)的實(shí)際需要研究了回波抵消技術(shù)，并對(duì)回波抵消算法進(jìn)行了計(jì)算機(jī)仿真研究，得到了一套效果良好、穩(wěn)定可靠的c語言程序，為用dsps實(shí)現(xiàn)該算法打下了一個(gè)良好的基礎(chǔ)。 - So acoustic echo cancellation ( aec ) technique has become a hotspot of competition in famous communicaton company all over the world . however , it is not always easy to implement acoustic equipments for communication system with satisfactory speech quality
回波消除技術(shù)能有效地解決長距離電話網(wǎng)絡(luò)、 ip電話、免提電話和視頻會(huì)議等通信系統(tǒng)中的回波問題，很好地改善了語音通信質(zhì)量，具有廣闊的市場前景。 - Acoustic echo cancellation is normally achieved by means of an acoustic echo canceller , which , in its simplest form , consists of an adaptive filter which estimates the echo signal and subtracts this estimate from the microphone signal
聲回波抵消通常采用聲回波抵消器來實(shí)現(xiàn)，最簡單的聲回波抵消器由自適應(yīng)濾波器組成。我們可以借助于它宋估計(jì)回波信號(hào)，并從麥克風(fēng)信號(hào)中減掉該估計(jì)值來實(shí)現(xiàn)聲回波的抵消。 - Signal processing for acoustic echo control includes modeling of reverberation , design of dereverberation algorithms , echo suppression , double - talk detection and adaptive acoustic echo cancellation , which is still a challenging problem in stereo full - duplex communication environments [ 3 . 53 ]
聲學(xué)回聲控制的信號(hào)處理包括回響模型、消回響算法設(shè)計(jì)、回聲抑制、雙方講話檢測(cè)以及適應(yīng)回聲消除，這仍然是立體聲全雙工通信環(huán)境中富有挑戰(zhàn)性的問題。 - Tele - conference , video - conference . acoustic echo cancellation is normally achieved by means of an acoustic echo canceller , which , in its simplest form , consists of an adaptive filter which mimics the transfer function of the echo path ( or room acoustic ) to synthesize a replica of the echo , and then subtracts the estimation from the combined echo and near - end speech ( or disturbance ) signal to obtain the near - end signal alone
聲回波抵消通常采用聲回波抵消器來實(shí)現(xiàn)，最簡單的聲回波抵消器由自適應(yīng)濾波器組成。具體方法是用自適應(yīng)濾波器來估計(jì)回波信號(hào)，并從麥克風(fēng)信號(hào)中減掉該估計(jì)值，從而實(shí)現(xiàn)聲回波的抵消。 - The remote - control unit has four functions as follow . ( 1 ) control the operation mode of the data transmitting end and receive the digital voice signal from it ; ( 2 ) process the voice signal with the aec ( audio echo cancellation ) arithmetic ; ( 3 ) compress the voice signal according to g . 711 and g . 722 standard ; ( 4 ) after the voice signal is processed with other digital signal including image information , data information and control information in the multiplexer , the information is transmitted to the mcu
遠(yuǎn)程控制端的主要功能有： ( 1 )實(shí)現(xiàn)對(duì)發(fā)送端的控制，并接收其發(fā)來的數(shù)字音頻信號(hào)； ( 2 )將接收到的語音信號(hào)進(jìn)行回聲消除處理； ( 3 )將數(shù)字語音信號(hào)進(jìn)行壓縮； ( 4 )將壓縮后的語音信號(hào)同其它數(shù)字信號(hào)(包括圖像信息、控制信息、數(shù)據(jù)信息等)進(jìn)行多路復(fù)用后，再經(jīng)過網(wǎng)絡(luò)交換芯片通過網(wǎng)絡(luò)傳送至多點(diǎn)控制單元( mcu ) 。 - Section ii describes the design approach and implementation of speech module on mcf5249 coldfire core . the speech codec optimizes g . 729a codes and added voice activity detection of g . 729b to save bandwidth ; the implementation of acoustic echo cancellation uses nlms algorithm and it can reduce echo though designing adaptive fir filter and speech detector ; the dtmf and cpt generate signal using two second order digital sinusoidal oscillators and detect signal by picking up the frequency information . but only get the frequency information is not enough in cpt detector , this thesis introduces a method
其中對(duì)語音編解碼器的設(shè)計(jì)采用優(yōu)化g . 729a代碼達(dá)到設(shè)計(jì)要求,并在此基礎(chǔ)上加入g . 729b的靜音檢測(cè)模塊,以進(jìn)一步降低網(wǎng)絡(luò)傳輸帶寬;對(duì)回聲消除器的設(shè)計(jì)采用nlms算法,通過設(shè)計(jì)自適應(yīng)fir濾波器和語音檢測(cè)器達(dá)到回聲消除目的;對(duì)雙音多頻設(shè)計(jì),信號(hào)發(fā)生端采用構(gòu)造靜態(tài)參數(shù)表并通過二階正弦振蕩器產(chǎn)生信號(hào),信號(hào)檢測(cè)端提取頻率信息以檢測(cè)信號(hào);對(duì)呼叫進(jìn)程音設(shè)計(jì),除了類似雙音多頻的信號(hào)發(fā)生及頻率檢測(cè)設(shè)計(jì)外,還需要檢測(cè)信號(hào)持續(xù)時(shí)間,作者設(shè)計(jì)了一種基于匹配狀態(tài)表的方法以檢測(cè)信號(hào)持續(xù)時(shí)間。
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