語音數字信令 的英文怎麼說
中文拼音 [yǔyīnshǔzìxìnlìng]
語音數字信令
英文
speech digit signaling- 語 : 語動詞[書面語] (告訴) tell; inform
- 音 : 名詞1. (聲音) sound 2. (消息) news; tidings 3. [物理學] (音質) tone 4. (姓氏) a surname
- 數 : 數副詞(屢次) frequently; repeatedly
- 字 : Ⅰ名詞1 (文字) character; word 2 (字音) pronunciation 3 (字體) form of a written or printed ...
- 語音 : speech sounds; pronunciation; voice
- 數字 : 1. (表示數目的文字; 表示數目的符號) figure; digit; numeral; character; numeric character 2. (數量) quantity; amount
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Originally, voice applications meant dealing with your bank or credit card company over the telephone by responding to commands, such as " please press or say one. " these interactive voice response systems evolved over time from one word or discrete digit recognition systems to allow a few basic commands, such as " please say, operator " or " call mom. " you also might think of a voice application, such as ibm viavoice, which is a general - purpose computer dictation system
起初,語音應用程序主要是用來通過響應「請按一或說一」之類的命令通過電話與銀行或信用卡公司進行交互。隨著時間的推移,這些互動式語音應答( interactive voice response , ivr )系統已經從一個詞或離散的數字識別系統發展為允許幾個基本的命令,比如「請說操作員」或「打電話給媽媽」 。您可能還會想到一個語音應用程序,比如ibm viavoice ,它是一個通用的計算機聽寫系統( computer dictation system ) 。After implementing digital signaling system into analogue trunking system, we get these improvements : more reliable connection between users, higher speed of connection, and more functions in trunking system. mdc1200 signaling system is one kind of this signaling, which is developed by motorola for improving the performance of its analogue trunking system
模擬集群通信是指它採用模擬語音進行通信,整個系統內沒有數字技術,但后來為了使通信連接更為可靠,模擬集群通信系統也採用了數字信令,使集群通信系統的用戶連接比較可靠,連通的速度有所提高,而且系統功能也相應增多。In this paper, we briefly introduced the performance of wave coding and vocoder, emphasizedly studied the principle and performance of variable rate vocoder q4401, including the internal construction and pins, qcelp coder & vocoder, pcm interface, cpu interface initialization process, command format and so on. we also designed a application circuit, with the experiment validated its performance. in this design, the pcm interface chip is tp3057, it was used to finish a / d transform, the compress coding was finished by q4401, the initialization and control were accomplished by 8051 singlechip
重點是研究變速率語音編解碼晶元q4401的工作原理及性能。其中包括q4401的內部結構及管腳、 qcelp編碼方式、 pcm介面、 cpu介面、初始化過程、命令格式等,並在此基礎上,設計一個實際的應用電路,通過實驗,驗證其性能。在設計中用pcm介面晶元tp3057來完成從模擬信號到數字信號的轉換,再由q4401進行壓縮編碼,對q4401的初始化及控制由8051單片機來完成。
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