digital speech communication 中文意思是什麼

digital speech communication 解釋
數字式語言通信
  • digital : adj. 1. 手指的；指狀的。2. 數字的，數據的。n. 1. （鋼琴等的）琴鍵。2. 手指。
  • speech : n. 1. 言語；說話；談話；說話能力（或方式）。2. 民族語言，方言，專門語言；〈罕用語〉流言。3. 演說，演講；發言。4. 【語言學】詞（類）；引語；用語。5. （樂器的）音，音色。
  • communication : n. 1. 通訊，通知；交換；信息；書信，口信，通報。2. 傳達，傳授；傳播；傳染。3. 交通，交通機關；聯系，連絡（設備）。4. 【宗教】接受聖餐。
  1. The hardware of the ip phone codec to be designed is based on the fixed point digital signal processor ( ti ' s tms320vc5410 ) while the compression and decompression core in the software of dsp is based on the itu - t vg. 729a. ip phone codec carryout the task of collecting / playing - back. coding / decoding of speech signal and communication with embedded cpu. etc

    該語音編解碼器的硬體基於tms320vc5410 ，編解碼演算法遵循itu - tg . 729a協議，能夠實現語音信號的採集/回放、編碼/解碼以及同嵌入式cpu通信等功能，在8kbit / s的碼率下能夠提供獲得良好的語音質量。
  2. Digital speech has preponderance over analog speech in reliability, robustness and security during communication. however, digital speech needs more bandwidth than the analog signal. especially with the requirement for communication frequency increasing, it ' s necessary to code speech signal at low rates

    但是，數字化后的信號所佔的頻帶大幅增加，特別是在帶寬需求日益增長的今天，這個問題尤為突出，因此語音的低速率編碼（即壓縮編碼）成為迫切的要求。
  3. Speech communication is one of the most used modes in the digital trunking communication system. excellent algorithm of speech coding can save the bandwidth resource, improve the utilization of frequency, so it has important value for investigation

    語音通信是數字集群通信系統中最常用的通信方式之一，優良的語音編解碼演算法能夠更加有效地節省帶寬資源，提高頻率利用率，因此具有重要的研究價值。
  4. This paper mainly discusses the design principles and chief techniques of a digital accessing system for power - line communication net ( plcn ). the technology of low bit rate speech compression high - speed modem based on plcn adaptive equalization to the channel anti - jamming and anti - fading are applied in this system. so speech tele - control data and tele - protection signals can be transmitted high quality in the band - limited channel

    該系統綜合應用了低比特率語音信號壓縮編碼技術、基於電力通信網的高速調制解調技術、信號傳輸的通道自適應均衡技術和抗干擾、抗衰減技術，可在帶限通道中高質量的傳輸語音、遠動數據和遠方保護等信號，具有較高的整體性能。
  5. Hands - free speech communication is indispensable in audio and video conference systems, hot - line telephones and videophones, mobile radio terminals, digital isdn network etc. however, the control ( cancellation ) of the acoustic echo has always had a strong impact on the transmission quality in hands - free telecommunication ~ [ 1 - 3 ] conventional methods of acoustic echo control ( cancellation ), such as echo suppression or gain control, may lead to the degradations in speech quality or make the speakers feel uncomfortable

    免提式話音通信在移動電話、熱線電話、車載電話及isdn網的電視電話會議等多種領域正得到日益廣泛的應用。但至今的免提式話音通信中，仍免不了受回聲引起的話音失真、甚至嘯叫等干擾，大大降低了免提話音通信的質量。由於聲回波對消問題尚未得到圓滿解決，實現高質量的免提式話音通信仍是一個極賦挑戰性的課題。
  6. Fpga has become the best selection in the design of complex digital system in modern design process of digital system, especially in communication system, because of its merits like high integration, better reliability, short design period, less investment and agility. the usage efficiency of fpga for communication system can be raised by designing low rate speech coder in fpga

    在現代數字系統設計中， fpga因為高集成度，高可靠性，設計周期短和投資小逐步成為復雜數字系統設計的理想首選，尤其是在通信系統中大量地使用，把低速率的語音編碼器在fpga中設計，可以提高通信系統中的fpga的利用率，節約成本。
  7. Tetra - the new digital trunked communication system, specifies algebraic codebook excited linear prediction ( acelp ), which is improved codebook excited linear prediction ( celp ), as its speech codec. the bit rate of it is 4. 567kbit / s

    本文首先詳細介紹了新一代數字集群通信系統tetra的語音編解碼採用的編碼速率4 . 567kbit s的代數碼本激勵線性預測（ acelp ）演算法。
  8. Speech coding is of great importance in digital communication systems

    語音編碼技術在數字通信系統中起著重要的作用。
  9. A secure speech communication system based on a digital chaos

    一類數字混沌保密語音通信系統
  10. With the mobile communication changing from the speech service to digital service, kinds of motion increment services emerge one after another incessantly and mobile payment is a luminescent spot

    隨著移動通信從語音業務轉向數字業務，各種移動增值業務層出不窮，而移動支付就成為其中的一個亮點。
  11. With the rapid progress of digital communication technology and the increasing requirement in commercial application, speech compression technology has advanced rapidly in recent years

    近年來，隨著數字通信技術的發展及商業應用需求的增加，語音壓縮技術得到了迅猛的發展；本文所介紹的g
  12. Directly digitizing of speech signals needs too much high bit rate in digital speech communication, thus compression and coding of the speech signals is essential in the process to increase the efficiency of transmission and storage, as well as the channel capacity

    數字語音通信中，語音信號直接數字化所需的數碼率太高，為了提高傳輸和存儲的效率，充分利用通道容量，必須對數字語音信號進行壓縮編碼。
  13. In the area of multimedia technologies, cuhk will further pursue research in information retrieval, digital game, human - computer interaction, multilingual speech recognition and synthesis, and multimedia communication system

    在多媒體科技方面，中大將在其堅實的基礎上，進一步發展資訊檢索、數碼游戲科技、人機互動系統、多種語言語音辨識系統，以及多媒體通訊等研究項目。
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