高音調制 的英文怎麼說
中文拼音 [gāoyīndiàozhì]
高音調制
英文
treble modulation- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 音 : 名詞1. (聲音) sound 2. (消息) news; tidings 3. [物理學] (音質) tone 4. (姓氏) a surname
- 調 : Ⅰ動詞1 (配合得均勻合適) harmonize; suit well; fit in perfectly 2 (使配合得均勻合適) mix; adju...
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 音調 : tone; tune; pitch; tonality; tono-
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The calls of non - passerine are some kinds of monotonous dull vocalizations with the characteristics of low and deep frequency, single syllable, low basic frequency and with no ability of modulation in frequency and amplitude. most of the calls are monotonous and low quality mainly based on the basic song. compare the vocal of sub - oscine passerine with non - passerine, they have some similar aspects, but the former possesses of stronger capability of vocal control
非鳴禽的叫聲低沉而單調,音節種類單一,基本音頻率低,缺乏頻率調制以及幅度調制的能力,叫聲的品質因數很低,不悅耳,大多為以基本音為主的單音調低音品叫聲,亞鳴禽的叫聲與非鳴禽近似,但在控聲能力方面又有所提高。The modulation of sound properties over a wide range of time scales is one of the most obvious characters of oscine passerine ' s vocal, whose song contains many different kinds of syllables that consist of many more multiple song phrases. in oscine passerine, ipsilateral projections of ra to nxiits innervates the ipsilateral syringeal muscles exactly, and thus they have strong ability of vocal control with variable tones, high frequency and higher lever of quality. as a result, the songs sound well
鳴禽鳴囀的最大特點之一便是其單次鳴唱時間長,鳴唱所包含的音節數量和音節種類繁多,因而由這些音節所組成的句型結構也是復雜多樣富於變化,且由於nxiits嚴格的側別控制(每一側核團只支配同側鳴肌) ,使其具有更強的控聲能力,其鳴聲音調變化幅度大,頻率高,品質因數大,音色好,因而其鳴聲也悅耳動聽。Compared with non - passerine, they appeared longer syllable length, higher basic frequency and more viable frequency ranges. though the amplitude modulation properties enhanced their vocal production, the type of syllable is still stable and less of variety. so the phrase consisted of syllables are comparatively few and changes of the tone are relatively less
且表現出很強的頻率調制特性和特有的幅度調制特性,相對的音節時程比較長,基頻較高且頻率變化范圍較大,所特有的幅度調制特性更增加了其控聲的能力,但其音節的種類仍很單一,缺乏變化,由音節所組成的句型較少,音調變化幅度不大,因此,其叫聲質量盡管較非鳴禽有所改善,但相對鳴禽而言卻又遠遠不如。6am and 18fm stations memory balance fader volume tone control
2 .音量平衡高低音調控制For phonetic signal modulation, if the pass band range of the band pass filter ( bpf ) is 300hz - 3400hz, the anti - noise properties of laser are approximately independent of bias current and parameters of the cavity ; when the pass band range of bpf increases to a certain degree, modulating bias current and parameters of the cavity can improve the anti - noise properties of laser
對語音調制情況,如帶通濾波器的通帶范圍取為300hz - 3400hz ,則激光器的抗噪聲性能基本不依賴于偏置電流和腔內參數;當帶通濾波器的通帶范圍增大到一定程度,調整偏置電流和腔內參數可以實現半導體激光器的高抗噪聲性能。12am and 18fm stations memory electronic volume balance treble bass controls
3 .電子音量平衡高低音調控制Prevention of railway noise pollution state environmental protection administration and ministry of railway have jointly issued the notice on enhancing railway noise pollution prevention, requesting the whistling of the trains travelling in urban areas and the loud speakers of the railway stations, marshalling yards, and switchyards should be controlled
鐵路噪聲污染防治國家環保總局與鐵道部聯合發布了《關于加強鐵路噪聲污染防治的通知》 ,要求控制市區運行的火車鳴笛及火車站、編組站、調車場指揮作業的高音喇叭。Our object is an intermediate frequency modem of a software defined radio transmitter - receiver of multi - service, multi - modulationmode and multi - processdatarate. first, related software defined radio theory is introduced ; later, channels of transmitter - receiver are designed with consideration of data format, modulation, fec, interwaving. and scrambling ; emphasis is placed on theory and implementation of an audio compression algorithm cvsd ( continuous variable slope delta modulation ) and a fec technique convolutional coding - decoding
本文首先介紹了相關的軟體無線電理論;然後完成了包括數據格式,調制方式,糾錯碼方式,交織器和擾碼器等部分的中頻數據機通道設計;接著著重介紹了系統中使用的音頻壓縮演算法cvsd (連續可變斜率增量調制)的原理和實現,以及作為前向糾錯碼的卷積碼編碼理論和編解碼的高效實現。In the thesis, a high efficiency linear am amplifier is developed, which is based on the basic theory of eer linearization amplifier technique [ 1 ]. the high efficiency digital audio amplifier technology [ 2 ] is adopted to develop the power supply modulator and the class - d switching amplifier technology [ 3 ] is adopted to develop the high efficiency rf amplifier
本論文利用eer ( envelopeeliminationandrestoration )線性功放技術的基本原理[ 1 ] ,採用數字音頻功放技術[ 2 ]實現高效率電源調制器,採用class - d開關放大技術[ 3 ]實現高效率載頻放大器,開發了一個集am調制和放大於一體的高效率線性功率放大器。Because of the using of interpolation, noise shaping and switching amplification in the digital audio amplifier technology, the power supply modulator is not only much efficient but also behaving good in envelope amplification, this advantage is hard to implemented with conventional technology
數字音頻功放技術是近年發展起來的高效率音頻放大技術,該放大技術採用了過取樣、噪聲整形等數字音頻處理演算法和開關功率放大。採用該技術實現的電源調制器不但具備很高的效率,而且能高指標地放大包絡信號,是常規的電源調制技術無法實現的。The structure and circuits of high resolution adc ’ s modulator which applied in audio signal range with 20khz base band and 16 bits resolution have been researched
本文對一種適用於音頻信號范圍的高精度模/數轉換器的調制器部分進行了結構和電路研究,基帶頻率20khz ,精度16位。The algorithm have the good one - way property, high sensitivity to initial values and good security due to the intrinsic characteristic of chaotic system and rijndael algorithm. the simulation experiment demonstrates the convenience and good hash performance ; 3 ) a new scheme of digital voice secure communication was proposed based on chaotic modulation without additional synchronization. the modulation sequence generated by chaotic logical mapping was used to encrypt the digital voice signal
混沌系統和rijndael演算法的固有特點使該演算法具有較好的安全性、對初值有高度的敏感性以及較好的單向性能,並且易於實現,是一種有效的單向hash函數; 3 )研究了一種無需同步的基於混沌調制的數字語音保密通信系統的方案,利用邏輯映射產生混沌調制序列,以該序列作為密碼對數字語音進行加密處理,為了更好的隱匿信號特徵,混沌調制在小波分解的基礎上,對不同的通道使用不同的參數進行,並借鑒混沌掩蓋對信息信號進行了限幅處理,使密文完全隨機化。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。In addition, about the process of practice in design the adsl board, we solve the questions such as the initialization and connection of adsl etc. the main works in the paper could be described as follow : study the theory of adsl and dmt, design and debug the high density 32 line adsl board for co. at present, the adsl board has passed all strict tests
同時,在開發的過程中,運用理論知識解決了adsl初始化和其建立連接等問題。論文的主要工作:深入研究adsl理論及其離散多音調制。設計、並實際開發了高集成度32路adsl局端業務板。Transmition velocity relys on the style of encode and modulation essentially during modern data transmition for the quality of using line bandwidth and the immunity of code ties on them tightly. but it is important that the velocity of data transmition reaches its limitation in fact for the interface of environment and cross - talk. so for the improvement of transmition velocity, we must analyze the characteristics of noise signal and the model of line deeply and then take some useful measures to better the immunity of modulation wave
在現代通信的數據傳輸過程中,傳輸速率本質上是由傳輸的編碼方式和調制方式決定的,因為編碼方式和調制方式直接決定了線路頻帶利用率和碼元抗干擾能力的好壞,因而直接決定了傳輸速率;但是在實際應用過程中,數據傳輸速率是不可能達到理想狀況的,因為環境干擾、串音干擾等因素的存在使得線路的頻帶不可能被完全利用起來;因此,必須認真分析線路的噪聲信號的特性以及噪聲線路的模型,以便在編碼方式和調制方式中針對性的做一些改進措施以改善調制波形的抗干擾能力,使得傳輸速率能夠進一步提高。The proposed modulator uses 0. 35um standard cmos process, the nmos and pmos threshold voltage is 0. 54 volt and - 0. 48 volt, respectively, and the power supply is 1. 5 volt. the nyquist converter rate is 50 khz, oversampling ratio is 80. the proposed modulator can obtain 98db dynamic range, 16 bits converter resolution, and fits for high - fidelity, digital - audio application
本設計採用0 . 35微米標準cmos工藝,其中nmos和pmos晶體管的閾值電壓分別為0 . 54伏和- 0 . 48伏,電源電壓為1 . 5伏,奈奎斯特轉換率為50khz ,過采樣率為80 ,該調制器可實現動態范圍98db , 16位的轉換精度,適合高保真數字音頻應用。The once flagship running model has been updated with a subtle tonal silver check upper complete with the high tech cushioning and motion control technologies which made it the top of it ' s class
一旦旗艦連續模型更新了與上部一微妙的音調的銀色的檢查完成與做它的高技術緩沖和運動控制技術上面它是類。We made an improvement in overcoming the defects in speech signal adaptive delta modulation ( abbr. adm ), such as slope overloading and grain noise. in this method, numerical sliding average filtering was used for filtering decoding speech signal. experiments and analyses indicate that the method makes waveforms in good agreement between the decoding of adm and the original pulse coding modulation ( abbr. pcm ) signal, and considerably improves, the playback speech quality in naturalness, legibility and under standability
針對語音信號自適應增量調制( adm )方式中斜率過載和顆粒噪聲缺點,提出了一種改進方法,它利用滑動平均方法對解碼后的信號進行數字濾波.試驗和分析表明,該方法使解碼后的信號波形與原脈沖編碼調制( pcm )波形具有很好的一致性,使再生語音質量在自然度、清晰度和可懂度方面比改進前均有較大提高Each classic treble string is ground using proprietary centerless grinding techniques. oundness & dimension control are unsurpassed, insuring absolutely perfect intonation. rectified nylon strings are known for their " warmer " tone
每條高音古典琴弦均使用獨家的技術進行精細的碾磨.弦線的圓滿程度和直徑控制都非常出色,以確保音調的完美無暇.經改良后的弦線以其更溫暖的音質而著稱This thesis adopts 8psk / qpsk modulation mode that ' s widely applied in short - wave communication to research all - digital blind receiver in burst mode based on software radio technology. then related solutions are given for the doppler frequency shift problem and multiple fading problem in short - wave channels. the arrangement of the thesis is below : chapter 1 gives brief description for the new technology and new systems of short - wave communication and for the development and appliance of software radio
本文採用短波通信中應用廣泛的8psk qpsk調制方式,研究基於軟體無線電技術的突發模式全數字盲接收機,並對多音并行及慢速傳輸中存在的多譜勒大頻偏問題、單音串列、高速數傳時在短波通信鏈路中發生的干涉衰落問題做了研究,提出了相應的解決方案。分享友人