測音計 的英文怎麼說
中文拼音 [cèyīnjì]
測音計
英文
acoustimeter-
Emphatically, this paper discusses the pattern of signal and antenna radiation of the system, the design principles and technologies of audio - generator and monitor, and the modification of measurement deviation. through special tests and aviate experiments, it has been proved that the performance of the domesticalized system is better than of the initial system
文中重點分析了俄制分米波儀表著陸系統的信號格式和天線輻射場型，著重闡述了系統中音頻信號產生器和監測器的設計原理和實現技術，對信號檢測中的測量誤差進行了分析並設計了有效的修正方法。The initial vsd process uses two main characters, the average instantaneous energy and the average instantaneous zero crossing rate ( zcr ). to make the first recognition for the start and the end, the emphasis of which is to select the appropriate value of the threshold and the length of frame. in the final vsd process, the author compares several characters and confirms the new recognition character
初步分段過程使用了能量和過零率這兩個主要特徵進行端點檢測，重點是合理選擇兩個重要參數? ?門限和統計幀長度的取值；在最終分段過程中，筆者首先通過比較幾種特徵的識別效果，選擇卡爾曼濾波參數作為再次分段的識別特徵，還提出了一種新的識別特徵? ?周期性緩變特徵，使用這兩個特徵分別在子語音段內進行端點檢測。This thesis tries to update the cmdsr system to achieve the characters below : real - time, better robust, higher recognition rate, non - special - man. considering the disadvantages of traditional improved spectrum subtraction speech enhancement, this thesis proposes the theory of fuzzy spectrum subtraction based on the fuzzy theory and improved spectrum subtraction speech enhancement ; as for the difficulties of detecting the endpoint of speech signal, the thesis gives the table of initial and the improved parameters, with which we can confirm the endpoints of mandarin digit speech ; the thesis puts forward two - level digit real - time speech recognition system, the first level is based on discrete hidden markov model which is linear predictive coding cepstrum ( lpcc ) and difference linear predictive coding cepstrum ( dlpcc ), the second level is based on formant parameters ; as for the realization of hardware, the thesis depicts the realization of every part of cmdsr based on the tms320vc5402 in detail ; as for the development of software, the thesis gives the software design flow chart of cmdsr, simulates the basic theory with matlab language and gives the simulation results
針對傳統的「改進譜相減法語音增強」參數設定單一、環境適應能力差的缺點，提出了一種利用模糊理論和「改進的譜相減法」結合的「模糊譜相減法語音增強」 ;針對語音信號端點檢測困難的特點，通過matlab模擬試驗，給出了能夠準確確定數碼語音端點的初始和改進參數表;提出了利用基於線性預測編碼倒譜參數和差分線性預測編碼倒譜參數相結合的離散隱含馬爾可夫模型進行第一級識別、利用共振峰參數進行第二級識別的兩級漢語數碼語音識別系統，在保證系統實時性的同時，實現連接漢語數碼語音識別系統識別率的提高;在硬體實現上，詳細闡述了基於tms320vc5402的連接漢語數碼語音識別系統各部分硬體設計;在軟體開發上，給出了連接漢語數碼語音識別的軟體設計各部分的流程圖，並對各部分進行了matlab模擬，並給出了模擬結果。When the frequency of signal is below to kilohertz quantitatively, the preactical test results of this system indicated that it is efficiency in signal process of biomedicine, automatic control, and audio etc. the purpose of design has been realized by the system ultimately
實際測試結果表明，該系統對于處理khz數量級以內的生物醫學信號、自動化控制信號以及音頻信號的效果基本達到了預期的設計要求。Then, the method of measuring hrtf by mit and cipic laboratory is briefly reviewed. after that, by using sound wave scatter theory and rigid sphere model of head, a simple method for calculation hrtf is proposed. and validating that method through psychoacoustics experiment, and matching database for realizing individual hrtf
然後簡述了麻省理工學院和cipic實驗室測量hrtf的方法，通過聲波的散射理論以及利用人頭模型提出一種簡化的理論計算對頭部尺寸對聲音定位的影響進行了理論分析，並且利用心理學測試驗證利用匹配數據庫實現hrtf的個性化。Product : tachometer 、 stroboscope 、 surface speed mter 、 anemometer 、 sound level meter 、 moisture meter 、 grain moisture meter 、 thickness meter 、 coating thickness meter 、 humidity meter 、 dew point meter 、 temp. meter 、 lux meter ect
主要產品：主要產品：轉速表、風速表、聲級計、 （噪音計） 、水份儀（水分儀） 、溫濕表、露點儀、測厚儀、塗層測厚儀、溫度表、照度表、頻閃轉表等。Standard test method for luminous reflectance factor of acoustical materials by use of integrating - sphere reflectometers
使用集成球形反射計測定音響材料反光因素的標準試驗方法Jiefu has a strong r d team which organized of state grade acoustic expert, constructs an effective production and quality control system, possesses of denmark loudsoft acoustic design soft and american lms acoustic analysis soft, full set b k2012 acoustic testing system, korea sigma inspect and test system as well as a 520cbm anechoic room, several reliability laboratory and subjective audition room. facilitated by all the above - mentioned resource, jiefus engineers continuously design and create the excellent speaker unit and speaker system
公司憑藉由國家級聲學專家組成的技術研發隊伍，建有一套有效的生產質量控制體系，擁有丹麥loudsoft聲學設計軟體和美國lms聲學分析軟體全套的丹麥b k公司2012電聲測試系統，和韓國sigma測試及試驗系統，並配備有520立方米的消聲室，多個信賴性實驗室和主觀聽音室，通過這些完備的研究開發資源，傑夫工程師不斷設計並生產出優秀的揚聲器單元和系統。The innovation of the paper is that, not only researching from a theoretical point of the auditorium acoustics design of the digital conference hall, but also studying and testing the practical works from the perspective of the practical application of the auditorium acoustics design of the digital conference hall, attempting to find out the general method to auditorium acoustics design of the digital conference hall, approaching to more operability to acoustics design
本文的創新點在於，不僅從理論角度對數字會議廳堂的音質設計進行了深入的研究，並且結合工程實例，從實際應用的角度對數字會議廳堂的音質設計展開研究與測試，試圖找到此類廳堂音質設計的一般方法，使音質設計有更強的可操作性。The classification of reading strategies is based on o ' malley & chamot ' s ( 2001 ) strategy framework, with reference to other related researches and consideration of the reading practice of senior students. the thesis mentions 8 metacognitive strategies : arranging and planning, advance organization, directed attention, selective attention, self - management, self - monitoring, self - evaluation, and self - reinforcement ; 10 cognitive strategies : contextualization, resourcing, deduction, inferencing, elaboration, transfer, translating, note - taking, applying images and sound, summarizing
對閱讀策略的分類，作者參照《英語課程標準》的要求，考慮了中學生閱讀的實際情況，也參考了其他學者的研究，並對o 』 malley chamoto ）的分類作了調整，提出8種元認知策略：計劃安排、預先組織、集中注意、選擇注意、自我管理、自我監控、自我評價、自我鼓勵； 10種認知策略：利用上下文情境、利用目標語資源、演繹、推測、拓展、遷移、翻譯、記筆記、利用圖象聲音、總結。This paper describes a chinese speech audiometric system for clinical testing
摘要本文描述了一種基於計算機音頻技術的漢語言語聽力測試系統。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。Fire detection and alarm systems for buildings - code of practice for the design, installation, commissioning and maintenance of emergency voice communication systems
建築物火災探測和警報系統.應急語音通訊系統的設計安裝交付使用和維護的實用規則Setup functions enable user - defined adaptation of a wide variety of options such as display contrast, record printout, saving data on the computer, general code, temperature calibration, acoustic signal, date and time, id, data transfer, update fix programs, language, c f changeover, check program, battery change, diagnosis data, printing programs, seal test, service functions for maintenance
設置功能允許使用人員對多種選項進行定義和調節，例如顯示屏幕對比度列印記錄把數據記錄到計算機上總碼溫度校正音響信號日期和時間識別傳輸數據固定程序升級語言攝氏和華氏溫度轉換檢查程序更換電池診斷數據列印程序測試密封保養用服務功能。Manufacturer of precision instruments and controls including barometers, density monitors and level control for use in applications in chemical, petrochemical, food, medical, pharmaceutical, water and wastewater treatment, utility industries
-銷售非接觸紅外測溫儀環境測試儀音量計噪音計照度計溫濕度計一氧化碳測試儀電力基礎儀表數字萬用表交直流鉗形表。In audio robust watermark algorithm, watermark is embedded in transform domain by using the speediness, simplicity and multi - resolution of wavelet transform. when extracting watermarking, the audio is decomposed by single - level discrete 1 - d wavelet transform, and watermarking is extracted by ica based on kurtosis maximization. this method ’ s computational cost is low
音頻水印利用小波變換快速、簡單和多解析度的特點來嵌入水印，提取的時候，先對觀測音頻文件進行一級小波分解，然後用基於最大峰值的ica方法進行水印提取，這種方法避免了其他盲源分離方法必需的求逆運算，所以計算量小。Electroacoustics - audiological equipment - part 1 : pure - tone audiometers
電聲學.測聽設備.第1部分:純音測聽計Iec 6 electroacoustics - audiological equipment - part 1 : pure - tone audiometers iec 60645 - 1 : 2001 ; german version en 60645 - 1 : 2001
電聲學.聽覺病矯治學設備.第1部分:純音測聽計Methods for measurement calculation of sound emitted by machinery and equipment at work stations and other specified positions from sound power levels
工作站和其他特定場所機械設備聲音排放聲強級的測量計算方法Code of practice for design and installation of directional sounder evacuation systems
定向測音器抽空系統的設計和安裝實施規程分享友人