音響量度 的英文怎麼說
中文拼音 [yīnxiǎngliángdù]
音響量度
英文
acoustical measurment-
In this paper, the author established the model of objective evaluate parameters of sound quality and develope d an objective evaluation system which could give quantitative objective evaluate parameters, such as loudness, sharpness, roughness, psychoacoustics annoyance ( pa ) etc. paper also describes an subjective evaluation investigation ir " " hich 16 subjects used pair comparison statistical evaluation methods to evaluate the noise character of room air - conditioners, the results show that there is generality good agreement between quantitative objective evaluate sound quality parameters and subjective evaluation. at the same time an example of application of the technique to improve the noise character of room air - conditioner is offered
此外本文還介紹了一個應用聲質量評價技術改進kfr - 50hw / e2d空調器聲質量的實例，通過對空調器室外機管系、導流罩、出風網等進行改進，空調器的聲質量得到了明顯改善：在室外風量提高164m ~ 3 / h情況下，聲音響度下降16 ，波動強度明顯改善，尖銳度指標也略有下降，作者同時總結了不同改進措施對產品聲質量影響的方式，以期為今後的聲質量改進提供借鑒。The factors which affect the spl : the square measure of diaphragm, the amplitude of vibration, magnetic field intensity, power, impedance, resonant chamber, the pattern and the thickness of diaphragm, and the holes
音量會影響聲音大小的因素:膜片面積，振幅，磁場強度，功率，阻抗，音腔大小，膜片花紋/厚度，開孔I tried to be open - - minded about the rock concert, but the music was at best loud and at worst toneless
對這場搖滾音樂會我要盡量思想開放些，但是其樂聲充其量響度很高，更糟糕的是很不悅耳。The scheme adjusts the audio frame length without impairing audio quality according to the occupied level of audio playout buffer and changes the playout frame rate of video according to the occupied level of video playout buffer to achieve intra - media synchronization of audio stream and video stream
演算法分別根據音頻和視頻播放緩沖區的佔用水平，在不影響音頻播放質量的情況下調整音頻幀的長度，實現音頻流媒體內同步；通過改變視頻流的播放幀率達到視頻流媒體內同步。Often appear when elevator pass person, clip person, rough layer, strong tip, crouch driver of bottom, elevator or maintenance technician not to have mount guard card, driver to often take off hillock, expire without acceptance label or certificate of approval inside car, elevator has unusual noise or sound, unusual vibration or shake, there is unusually anxious burnt taste inside car, too fast or elevator rate is too slow, maintenance is not seasonable, wait without communication or warning decice inside elevator car, all can undertake quality or safety are complained
當電梯經常出現關人、夾人、不平層、沖頂、蹲底、電梯司機或維修人員無上崗證、司機經常脫崗，轎廂內無檢驗合格證或合格證過期，電梯有異常噪音或聲響，異常振動或抖動，轎廂內有異常焦糊味，電梯速度過快或過慢，維修保養不及時，電梯轎廂內無通訊或報警裝置等，均可進行質量或安全投訴。( 3 ) the most principal factors that influence the supersonic atomization process include the flow ratio of the gas - liquid metal ( gmr ) value, the flow of atomizing of gas and the range of the inverse vortex taper. the more of the value of three factors, the more advantage they are for the atomization and the more fine the powders are. ( 4 ) the produced powders are the best in efficient atomization efficiency, particle diameter, particle shape and dispersion when the solder alloy is zhl63a, atomizing medium is n2, the protrusion h = 6. 0mm, atomizing gas pressure p = 100mpa, over - heat temperature t = 167 ( t = 350 )
研究結果表明： （ 1 ）超音速霧化器的氣體流場在導液管下端形成一個倒渦流錐，在二維空間上呈軸對稱的雙峰分佈，負壓形成於這個倒渦流錐內； （ 2 ）修正後的霧化氣體速度公式可以滿足超音速霧化的要求； （ 3 ）影響超音速霧化工藝最根本的因素有氣液質量流率比（ gmr ）的大小、霧化氣體流量和倒渦流錐范圍，三個因素的值越大，對形成細粉越有利； （ 4 ）在焊錫合金為zhl63a ，霧化介質微n _ 2 ，導液管突出高度取h = 6 . 0mm ，霧化氣體壓力取p = 1 . 0mpa ，合金過熱度取t = 167 （ t = 350 ）時，所制得的粉末在有效霧化率、顆粒球形度、粒度及其離散度三個方面綜合性能最好。Based on traditional dtw speech recognition and through relaxing extreme, limiting route ' s slope and improving some routes, the system can recognize and respond quickly especially when applied in small vocabulary speech recognition and speaker - dependent recognition
在傳統的dtw語音識別的基礎上，通過放寬端點、對路徑進行斜率限制和改進路徑限制等方法，使系統能夠快速的識別響應，尤其是對于小詞匯量和特定人識別，可以有效地提高響應速度和識別率。However, few people actually understand precisely what the term means, what the consequences of a particular damping factor rating might be for the ultimate desired result ( sound reproduction
然而，只有很少人真正能夠理解這個術語的準確含義，了解某一特定的阻尼因子量度如何能對最終聲音重放的結果產生影響，或者有那些因素和系統或阻尼因子有關。But nasa engineers do not know enough about how the two bits of material on discovery could affect thermal and aerodynamic forces as the vehicle plunges at 22 times the speed of sound through the atmosphere on re - entry
不過，美國宇航局的工程師們還不能確定，當「發現」號航天飛機以22倍于音速的速度再次經過地球大氣層時，機身上的這兩塊材料會在熱量和空氣動力方面產生怎樣的影響。This is just a method for using to passing 16 bits 44. 1s khz passage compressing more musics within many hdcd technique, look like technique read with the strong scope of 16 bits coding. that system at used the process to inside expressed extreme of excellent technique, also reflected a personal sense of hearing, recording, electronics design with figures number coming of modern ear that handle. the graveness that hdcd technique is a figures stereo set leaps. the easy to do compares a mother for using the hdcd plait the solution code to take with a tradition of 16 mother that bits 44. 1s khz the edition take, and the hdcd can get the resolution of more detailses ; the restoring of tone color is too more accurate ; the high part is more smooth, and also little the trace of the many artificial ; more wide and dynamic scope ; big development with complicated chapter more contain clarity ; field of more wide voice ; when the musical instrument of the other and big volume give musical performance, can more goodly the hear the small volume musical instrument deeply thought to deduce. even we expect already a long time of the cd system type of the high quality way for a life time empress, 16 bits 44. 1s khz system type cd will still very longly a period of time inside can t withdrawing the music satge, because hdcd system providing first kind from the cd format obtaining bestly music
Hdcd技術是數碼音響的重大飛躍。輕易比較一個用hdcd編解碼的母帶和一個傳統的16bit 44 . 1khz版本的母帶， hdcd可以得到更多的細節解析度音色的還原也更加準確高音部分更加平滑，也少了許多人工的痕跡更寬的動態范圍大動態和復雜的章節更有透明度更寬廣的聲場當其他大音量的樂器演奏時，可以更好地聆聽小音量樂器的精微演繹。即使我們期盼已久的超高音質的cd制式面世后， 16bit 44 . 1khz制式cd仍將很長一段時間內不會退出音樂舞臺，因為hdcd系統提供了一種從cd格式里獲取最好音樂的方式。Choose a suitable location for density residential blocks to minimise the negative visual, noise and air quality impacts
地點高密度住宅大廈的選址，應該以盡量不造成負面的視覺、噪音和空氣質素影響為佳。Indeed, any alteration to existing aircraft designs entails hard tradeoffs in performance, ride and noise, mechanical complexity, operational and maintenance costs, and safety
對現有飛機設計做任何改變，都會影響性能、載客量、噪音、機械的復雜程度、操作與維護費用，以及安全。Centering around the problems existing in cbair, this dissertation studies the following problems : 1. for the problem of expression - level retrieval of static audio, fuzzy histogram audio retrieval method based on principal loudness component is developed
本文針對音頻檢索技術存在的問題，在以下方面對音頻檢索技術開展了研究工作: 1 、針對表示級的靜態音頻檢索問題，提出了基於響度主分量特徵的模糊直方圖音頻檢索方法。For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation
數值模擬採用fluent軟體，計算結果用excel進行處理，通過對大量數值工況進行數值模擬計算，結果表明：對于單側百葉風口，計算表明： 1 ）對于公式p = （ ~ 2 ） 2 ，的理論計算值中定義為流體流經百葉風口內部時的速度，即有效速度，而工程上常使用流體的來流速度來計算，計算表明，的理論計算值與工程應用值的關系為（ _ （理論） ） （ _ （工程） ） = 0 . 813 ； 2 ）當來流速度一定時，擋板傾斜角度越小，壓力損失越小、出口速度越小；因此在要求進口風速比較小的場所，如播音室、圖書館等，宜採用擋板角度30的百葉風口；在要求進口風速比較大的場所，如電影院、辦公室等，百葉擋板的角度應選45 ； 3 ）當來流速度一定時，百葉擋板的擋板寬度b與擋板間距h的比值b h越大，壓力損失越大，出口速度越小，計算表明，鑒于壓力損失、出口風速、板間形成渦流區的大小，百葉擋板的b h值取0 . 8到2 . 0之間， b h = 1 . 2為最佳值； 4 ）當來流速度一定時，在計算的條件下，當百葉擋板寬度b = 40mm時，百葉擋板的阻力系數最小，考慮到渦流區等的影響，建議選用10mm b 50mm的百葉擋板；西安建築科技大學碩士學位論文5 ）百葉擋板的厚度取為1 . sinln為好; 6 ）百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板，利用其較好的導流作用，可得到更好的出流效果。In amplitude analysis in time domain, the step impulse response acts as an important parameter to evaluate the performance of audio device. it reflects the response sensitivity of audio system to sudden changed signals
在音頻設備的時域特性分析中，階躍脈沖響應檢測是衡量系統性能的重要方法，它反映的是音頻設備對于突變信號的響應靈敏度。Windows media encoder 9 series is a powerful tool for content producers who want to take advantage of the many innovations in windows media 9 series, including high - quality multichannel sound, high - definition video quality, new support for mixed - mode voice and music content, and more
Windows media編碼器9系列是一個強大的工具，對于希望充分利用windows media 9系列中的多項革新功能的內容提供商而言無疑是個福音，這些功能包括高質量多聲道音響高清晰度視頻質量新增對混和模式的聲音和音樂內容的支持以及其他更多功能。Starting from the basic concept for the production of musical sound, the essay reduces the sound to its single tone, analyzes the common origins of pitch, rhythm and volume on the deeper level, and thereby derives the potential of the transformation among the three, revealing the truth in the art of music that the whole is not equal to the simple addition of all individuals
本文從音樂音響產生的基本概念入手，將音響還原到單音狀態，分析了音高、節奏、音量在深層次上的共同根源，並以此推導出三者存在相互轉化的可能，從而揭示在音樂藝術中整體並不等同於單個個體的簡單相加，而二度創作空間從單音的發音到分句的劃分也同樣存在無窮的可能，也由此決定了人的感性參與的重要意義，它們的創作空間是主客觀的共同作用。" however, in view of public concern, cad will continue to implement various noise mitigating measures so as to minimise the noise impact to residents under the flight paths, especially at night, provided that flight safety will not be compromised and the efficiency and capability of the airport will not be severely affected. " as part of the measures, aircraft landing between midnight and 7 am will land from the southwest, subject to safety and acceptable weather conditions
盡管量度結果顯示，受飛機航道影響的地區的飛機噪音水平，與機場啟用前所進行的環境影響評估的結果一致，民航處仍然非常重視市民所關注的事項，在不影響飛行安全及機場的效率和功能的情況下，繼續實施各項飛機噪音消減措施，盡量減低特別是在晚間飛機噪音對在航道下的居民的影響。And the paper expatiates on the further research on the optimum algorithm for solving the problem of noise disturbance, and experiments to examine its effect to remove noise. thus it discusses how to select the width of numerical value filter on the basis of a compromise in pitch detection and reconstructed speech quality
最後本文得出結論認為選擇數值濾波演算法分析窗的寬度需要綜合優化演算法中數值濾波對基音檢測和合成語音質量這兩方面不同的影響，而不單單只是考慮它對其中一方面的影響。Volume strength of voice or ring the degree, strong or weak of voice marking the degree. it is main to have relation with voice size for vibrating the range, too weak can t hear, too strong can make the person can not stand. consider from the electricity function, and the voice open too big to still cause to lose really
音量聲音的強度或響度，標志聲音的強弱程度。它主要與聲源振動幅度的大小有關，太弱了聽不見，太強了會令人受不了。從電氣性能考慮，聲音開的太大還會引起失真。分享友人