音頻發生器 的英文怎麼說

中文拼音 [yīnbīnfāshēngqì]
音頻發生器 英文
acoustic frequency generator
  • 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...
  • 發 : 名詞（頭發） hair
  • 生 : Ⅰ動詞1 （生育; 生殖） give birth to; bear 2 （出生） be born 3 （生長） grow 4 （生存; 活） live;...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 音頻 : [物理學] [電學] audio frequency; vf （voice frequency）音頻電路 voice frequency circuit; 音頻振蕩...
  1. 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。
  2. Digital audio generators

    數字音頻信號發生器
  3. It is goes in for research, development and production of products including tweeters, drivers, acoustic control lamps, guitar acoustics, sound boxes, amplifiers for auto, megaphones and crossovers etc. which are widely used in acoustic equipments such as special audio, car audio and beach audio

    公司專業從事研製開發生產高音揚聲器驅動頭聲控燈系列吉它音響音箱汽車功放喊話器分頻器等產品。產品廣泛用於專業音響汽車音響沙灘音響等音響設備產品全部出口至亞非歐美市場。
  4. Analog synthesis often use low - pass filter to remove electronic audio generator generated by high - frequency noise

    模擬合成器常常使用低通濾波器來去除電子音頻發生器所產生的高頻噪聲。
  5. Compared with analog power amplifier, digital amplifier has many advantages, such as hi - fi, high efficiency, good match between amplifier and loudhailer, easy update, convenient debugging and so on. and it can process not only digital audio signal but also analog signal. accordingly, it faces a vast market

    數字功放產品相對模擬功放有很多的優點:高效率、保真度較好、功放和揚聲器的匹配好、升級換代容易、生產調試方便等，且與未來的全數字式音頻廣播、高清晰度電視的發展趨勢相匹配。
  6. We equip the following machines for the environmental testing and the reliability test : test box with high and low temperature, test box with high temperature, test box with invariableness temperature and humidity, salt - spray test box, vibrant and impactive test machine, tensile test machine, frequency tester and scanner, oscillograph, oven with invariableness temperature etc. pic the 3d machine

    環境試驗可靠性測試等方面配置有以下儀器設備：高低溫試驗箱高溫恆溫試驗箱恆定濕熱試驗箱鹽霧腐蝕箱振動沖擊試驗臺拉力試驗機諧振頻率f0快速測試儀揚聲器f0快速測試儀音頻掃頻信號發生器示波器電熱恆溫乾燥箱等。
  7. I has mainly discussed the sofeware and hardware of aribrary waveform generator controlled by the microcontroller in my with the control of the high proformance microcontroller - 80c196kc, this instrument builds up the main circuit adopting single tone and dac of ad9857. in my project, i. have designed some special circuits with the advanced method of eda ( electron design automation ) based on vhdl and cpld. it can produce standard waveforms such as sine, square, triangle, and generate aribrary waveform according to the user ' s demand, at the same time, it has the ability to produce the amplitude modulation signal based on the carrier of sine and the aribrary waveform

    論文中主要對微機控制的任意波形發生器的軟硬體設計進行了相應的研究，該任意波形發生器以intel公司16位高性能單片機80c196kc作為控制器，分別利用了ad9857的單音頻模式和dac模式組成正弦波和任意波產生的電路，在硬體電路的設計中採用了先進的eda （電子設計自動化）技術，使用vhdl語言和可編程門陣列器件對一些特殊的電路進行了設計。
  8. The vt320 - h. 324 multimedia test system is a real - time protocol analyzer designed to aid in the development, installation and support of multimedia products, terminals and systems conforming to the itu - t h. 324 standards for use over the general switched telephone network ( gstn )

    標準的多媒體會議產品、終端和系統的開發、安裝和支持而設計。信號發生器提供由視頻、音頻、數據和控制協議信息組成的復合流。
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