音頻通信 的英文怎麼說

中文拼音 [yīnbīntōngxìn]
音頻通信 英文
voice communication
  • 音 : 名詞1. （聲音） sound 2. （消息） news; tidings 3. [物理學] （音質） tone 4. （姓氏） a surname
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 通 : 通量詞（用於動作）
  • 音頻 : [物理學] [電學] audio frequency; vf （voice frequency）音頻電路 voice frequency circuit; 音頻振蕩...
  • 通信 : communication; communicate by letter; correspond
  1. In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab

    針對無連接和面向連接的各種復雜網路環境下，通信頻帶資源緊張，音頻傳輸帶寬有限且復雜多變，而各種音頻數據又日益增多的局面，本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義，在前人不斷工作的基礎上，提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法，兼考慮了編碼效率、多碼率和壓縮時延多個方面，並在matlab環境下做了模擬實驗，對各種音頻信號及多種小波函數做了模擬結果比較，實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果，達到多碼率下實現實時編解碼的過程，在高速dsp晶元等硬體設備支持下，可以有效應用於實際復雜多變信源編碼。
  2. Furthermore, the network technique only support the voice service cannot meet the communication requirements of people. people hope to obtain multimedia service such as packet data, video and picture phone etc besides voice service. all these need operators and researchers to look after the mobile communication scheme which optimizes spectrum efficiency and expands system capacity to accommodate more users in major metropolitan markets

    此外，僅支持語音業務的網路技術已不能滿足人們對信息交流的需求，人們希望能隨時隨地獲取除語音之外的數據、視頻和圖像等多媒體業務，這些因素都促使運營商和研究者尋求頻譜利用率更高、通信容量更大的移動通信解決方案。
  3. Noise clear technology at audio band of short and ultrashort device

    短波及超短波通信設備音頻消噪技術
  4. It is expected to be used for 3g personal handy - phone system as standard algorithms which encode speech signals and decode it. additionally, this kind of algorithms which own excellent quality can be application in viewphone and video order programme etc. the thesis introducethe algorithm structure of g. 729

    該協議在可預見的將來可能應用於三代移動通信系統中作為語音編解碼演算法。另外，由於其良好的性能也可應用在多媒體系統中如：可視電話，視頻點播等。本論文概要介紹了g . 729協議的演算法結構。
  5. 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

    其中對語音編解碼器的設計採用優化g . 729a代碼達到設計要求，並在此基礎上加入g . 729b的靜音檢測模塊，以進一步降低網路傳輸帶寬;對回聲消除器的設計採用nlms演算法，通過設計自適應fir濾波器和語音檢測器達到回聲消除目的;對雙音多頻設計，信號發生端採用構造靜態參數表並通過二階正弦振蕩器產生信號，信號檢測端提取頻率信息以檢測信號;對呼叫進程音設計，除了類似雙音多頻的信號發生及頻率檢測設計外，還需要檢測信號持續時間，作者設計了一種基於匹配狀態表的方法以檢測信號持續時間。
  6. 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

    回波消除技術能有效地解決長距離電話網路、 ip電話、免提電話和視頻會議等通信系統中的回波問題，很好地改善了語音通信質量，具有廣闊的市場前景。
  7. The economic and technical drivers of integration ? information technology, virtually costless communications, the internet as an all - in - one platform for voice, video and data services and the accelerating pace of innovation in service as well as manufacturing industries ? are growing stronger

    全球一體化背後的經濟和技術推動力（信息科技、幾乎無成本的通信、集音頻、視頻和數據服務於一體的網際網路平臺，以及服務和製造業的加速創新）正日益強勁。
  8. The voice recording instrument adopts 8bit pcm and 4bit adpcm voice coding and decoding mode, can record the eight - channel voice signal simultaneously. it can save the recorded data in the flash memory or in the pc through the ethernet. the recorded voice signal data also can be played back

    該語音記錄儀採用8位pcm或4位adpcm語音編解碼方式工作，可實現8路音頻輸入信號同時錄音;能夠將錄制的數字語音數據存儲在nand型flash中或通過以太網介面上傳到pc機存儲;能夠將錄制的數字語音數據進行回放。
  9. It can provide many functions : the conversion between transfer formats, the conversion between communication protocols, the conversion between analog signals and digital signals, the conversion of control commands, real time audio code / decode, ip call control, control of rtp / rtcp, call detail logs, accounting and some of gatekeeper ' s functions such as address tansfer / search.

    它提供以下功能：傳輸格式間的轉換，通信規程間的轉換，音頻、數據格式轉換，呼叫控制信令的轉換，對pstn的呼叫控制功能， pstn電路交換功能，實時語音處理語音壓縮功能， ip網路呼叫控制功能，對實時對話協議rtp rtcp的控制功能，呼叫日誌，計費功能，還包括關守的地址翻譯搜索等功能。
  10. Through embedding watermark information into audio carrier, the function of copy restriction, use track and the pirate confirmation can be realized

    通過在音頻載體中嵌入水印信息，可以實現拷貝限制、使用跟蹤、盜用確認等功能。
  11. In order to overcome this shortcoming, a real - time communications system for pictures and music, based on vod and video - banking technologies has become available commercially. instead of transmitting pictures and music in the text format, it transmits data in encoded signals in proper order and regenerates them on a real - time basis. that is how long - time multimedia communications made possible

    為了克服上述缺點，現在推出了一種以vod ，視頻庫技術為基礎的圖象、音樂實時通信系統，它對圖象、音樂等不可以文本格式傳送，而是把編碼信號數據，依次進行傳送，並實時再生，這樣長時間多媒體通信就成可能。
  12. Usually point a kind of inside to pack the arithmetic figure cent the network with the box of the power enlarger. arithmetic figure type the power enlarger for method for signal for inputting for arithmetic figure comparing, at with arithmetic figure signal handling again and again partitioning the empress, then and respectively these signals transformation is imitating the signal, then again from eachly from of box enlarge the empress to go to again to push the the cowgirl in the box to pronounce the unit

    通常指一種內裝數字分頻網路和功率放大器的音箱。數字式音箱輸入的信號為數字比特流，在用數字信號處理的方法將音頻頻譜分割后，便分別將這些信號變換為模擬信號，然後再由各自的功率放大器放大后再去推動音箱中的相應發音單元。
  13. 3. learn deeply the mpt1327 communication protocol, design and realize the server of the single - seat dispatch platform system, realize its audio communication function

    3 .深入學習研究mpt1327通信協議，設計單坐席調度臺，實現該協議絕大多數音頻通信功能。
  14. In data communication, the addition of equipment to a leased voice - grade channel to provide minimum values of line characteristics required for data transmission

    在數據通信中，在租用的音頻通道上增加設備以提供數據傳輸所要求的線路特性的最小值。
  15. Spread spectrum technique, which can handle variable adverse environments, exhibits unique qualities that have a number of advantages in anti - jamming, anti - noise, reduction of multi - path interference, low power spectral density, privacy, selective addressing and code division multiplexing

    擴頻通信技術具有優越的抗干擾、抗噪音、抗多徑衰落性能，能在低功率譜密度下工作，具保密性、可多址復用和任意選址，能有效克服各種惡劣的通道特性，目前廣泛應用於移動通信、雷達、導航、測距、電力線通信等領域。
  16. Recommended minimum performance standard for the high - rate speech service option 17 for spread spectrum communication systems

    擴頻通信系統用高速率語音服務選項17的推薦性最低性能要求標準
  17. Stereo is set as the default for audio channels. this enables playing files where the number of audio channels is not specified

    立體聲設為默認的音頻模式。這樣解決播放部分無音頻通道信息的文件的問題。
  18. With the progress of society and development of industry, people have advanced more and more demand for communication. especially during the past twenty years, the need of people on communication is converted to multimedia communication because of the fast improvement of the 1c technology and the network

    隨著社會的進步，工業的發展，人們對通信的要求越來越高，尤其近二十年以來隨著ic技術和網路技術的飛速發展，人們對通信的需求逐漸轉向以視音頻通信為主的多媒體通信上來。
  19. General test method for transmission performance of pcm voice channel in telecommunication network

    電信網中脈沖編碼調制音頻通路傳輸特性常用測試方法
  20. At present, with the tremendous development of the computer network technology and the communication technology as well as thorough and popular application of multimedia, real - time audio / video communication based on internet, namely voip, has become a popular research topic of internet application

    伴隨著計算機網路技術和通信技術的飛速發展以及多媒體應用的深入和普及，基於因特網的實時音頻視頻通信，即voip ，目前已成為internet應用的一個熱門研究課題。
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