V - vad 中文

vad n.【計算機】增值與數據網絡；附加數據服務通信網絡〔系 ...

Experiment results show their shortages under varying noisy situations . chapter 4 and chapter 5 detail our new algorithm and its implementation . to overcome the traditional vad parameters “ poor performance in non - stationary noise , a new vad algorithm based on lp residue is proposed in chapter 4 其中第四章通過分析語音信號參數的特點，以獨創的基于線性預測殘余信息的vad參數結合其他幾種經典vad算法參數的優點，提出一種新的vad技術來改進現有的g . 729算法。
vade
This paper begins with an analysis of vad ( voice activity detector ) algorithm in amr vocoder ( speech codec standard in wcdma ) , with emphasis on the feature and fundamental principles of it , followed by a revised method that have better performance in simulation testo and is proved practicable in experimental test 本文首先對wcdma的語音編碼標準? amr聲碼器中的語音端點檢測算法進行了分析，重點探討了算法的特點及其理論依據，其思想具有普遍意義，可以在信源壓縮編碼及其它需要高精度語音端點檢測的應用場合中采用，具有較大的研究價值。
On the basis of analyzing noise property , this thesis emphasizes on two noise estimation methods : classical method based on voice activity detection ( vad ) and the latest method based on optimal smoothing and minimum statistics . some improvements have been proposed to enhance the vad ’ s performance based on lpc cepstrum coefficients 2 .在分析噪聲特性的基礎上,重點研究了基于語音活性檢測和基于連續更新噪聲譜的兩種噪聲參數估計方法,并提出了將能零積的思想應用到基于lpc倒譜系數的語音活性檢測算法中。
However g . 729 ' s computation complexity is a little higher for application . taking the advantage of discontinuous transmission , we embed a new algorithm of voice active detection ( vad ) into the original algorithm of g . 729 to improve its efficiency . this algorithm can also reduce the average computation complexity of g . 729 本研究針對g . 729的特點，提出了一種新的語音激活檢測算法，利用該算法對g . 729的不足之處進行改進，提高g . 729的算法效率，降低其平均運算時間，并將該算法用vhdl描述，兌現成硬件。
Chapter one in this paper gives brief applications of doppler radar , analyses the techniques of wind retrieval ; the second part introduce the methods of dealiasing ; using vad technique , the environmental wind can be extracted . during actual operation , there are two kinds of practice strategies , one is single - elevation vad method , and the other is multi - elevation vad method . there are different between those two methods 第三章在幾種vad算法中選擇了一種較好的算法，分別用實際業務中使用的兩種實施策略：單仰角vad方法和多仰角vad方法進行風場反演，比較了這兩種算法的反演結果，并提出了融合這兩種方法優點的自適應仰角取樣策略。
The research content of the thesis is the speech enhancement technique that is used in the acoustic feedback suppresser . firstly , we searched and compared the methods of noise estimation based on vad and updating the noise spectrum continuously , combined them together to make some improvement . secondly , we research on some speech enhance techniques including short time spectrum analysis speech enhance technique and its improvement form , simulated the algorithms and compared them each other 本論文研究語音增強技術在聲反饋抑制器中的應用,論文的主要工作包括: 1 .對基于vad ( voiceactivitydetection )的噪聲估計方法和連續更新噪聲譜的方法進行研究和比較,針對仿真結果分析兩種噪聲估計的性能,并將兩者結合起來,做出改進,用于實際的語音增強系統中。
Experimental results in different noises and snr indicated that this vad algorithm can divide speech segments from non - speech segments accurately and reduce voiced - unvoiced error obviously . ( 2 ) an improved dct - hn speech decomposition algorithm based on the harmonic - noise model is presented 不同噪聲、信噪比下的實驗結果表明,該算法可以準確區分語音段與非語音段,明顯降低了基音檢測中清濁誤判現象的發生; ( 2 )基于“諧波-噪聲”模型提出了一種改進的dct - hn語音分解算法。
Experiment results show their shortages under varying noisy situations . chapter 4 and chapter 5 detail our new algorithm and its implementation . to overcome the traditional vad parameters “ poor performance in non - stationary noise , a new vad algorithm based on lp residue is proposed in chapter 4 其中第四章通過分析語音信號參數的特點，以獨創的基于線性預測殘余信息的vad參數結合其他幾種經典vad算法參數的優點，提出一種新的vad技術來改進現有的g . 729算法。
The changes of mean wind from low - level to high - level can be show from vad technique . we can get the mean wind of certain level only , but no the distributing at different azimuth . so we maybe ignored some local - system 由于vad方法只是揭示了平均風矢量從低空到高空的演變，得到的是各個高度層上的平均風場，無法得知各個高度層上的水平風場。
As the pitch doubling and halving problems of nccf algorithm often occurred with varied noises and signal to noise ratio ( snr ) , vad algorithm is employed to separate speech and non - speech segments 針對nccf基音檢測算法在不同噪聲、信噪比下容易發生清濁誤判的問題,本文在基音檢測前端引入語音檢測算法劃分語音段與非語音段。
The noise estimation includes vad and updating noise spectrum continuously . the first one is complemented easily , the later aims at actual unstable noise and updates the noise spectrum continuously 噪聲估計分為vad ( voiceactivitydetection )和連續更新噪聲譜兩種,前者實現簡單,后者針對實際非平穩噪聲和即時更新噪聲。
Because of the large difference between spectrum of speech and noise and great ability of dct to reduce the correlation of signal , it is advantage to use dct domain spectral entropy to do vad 由于語音與噪音的頻譜區別很大, dct去除信號相關性的能力很強,利用dct譜熵在噪聲環境下進行語音檢測有其獨特的優勢。
Experimental results show that the new vad algorithm improves g . 729 ' s overall performance in varying noisy situations . experimental results of comparing with other vad are also presented 結果證明該技術在白噪聲環境下大部分性能比g . 729b (同樣應用vad算法來改進g . 729的一個標準算法)優越。
Based on all these above , the results of main research are as follows : ( 1 ) a voice activity detection ( vad ) algorithm based on dct band - partitioning spectral entropy is proposed 本文以此為基礎,并取得了如下研究成果: ( 1 )提出了基于dct分帶譜熵的語音檢測算法。
Us computational consumption during inactive voice period arouses us of the idea to apply vad into g . 729 . chapter 3 introduces some traditional vad parameters 第四章和第五章介紹本研究的創新之處： g . 729具體改進方案的理論分析和vhdl硬件描述。
Om point r etablerad , kommer pass line satsningen utbetala 1 - till - 1 om point r upprepad fre en 7 : a . nsta del frklarar all vad och satsningsmjligheter i detalj 如果點數已建立，并且該點數于甩出7之前再度出現，那么pass line賭注支付是一比一。
Placerade en marker p den horisontella linjen vilken sammankopplar c och e punkterna tillter dig att tcka bde any craps och any eleven satsningar med ett enda vad 將籌碼放在c及e位置之間的橫線上將讓您一次可下注任何craps及任何eleven 。
Those methods are discussed in the third part to find out the different , and self - adjust elevation vad methods can get more valuable wind information 結果表明本文提出的自適應vad方法結合了前兩種vad方法的優點，能得到更實用的結果。
Vad der waals force of the aramid fibers , favor the penetration of dyes into the fibers and increase the dye pickup 通過采用化學助劑使芳綸分子之間的間隙增大，降低芳綸分子間的范德華力，有利于染料進入纖維內部，提高染料的上染率。

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vad

vad n.【計算機】增值與數據網絡；附加數據服務通信網絡〔系 ...

vade

Based on all these above , the results of main research are as follows : ( 1 ) a voice activity detection ( vad ) algorithm based on dct band - partitioning spectral entropy is proposed 本文以此為基礎,并取得了如下研究成果: ( 1 )提出了基于dct分帶譜熵的語音檢測算法。

Us computational consumption during inactive voice period arouses us of the idea to apply vad into g . 729 . chapter 3 introduces some traditional vad parameters 第四章和第五章介紹本研究的創新之處： g . 729具體改進方案的理論分析和vhdl硬件描述。

Om point r etablerad , kommer pass line satsningen utbetala 1 - till - 1 om point r upprepad fre en 7 : a . nsta del frklarar all vad och satsningsmjligheter i detalj 如果點數已建立，并且該點數于甩出7之前再度出現，那么pass line賭注支付是一比一。

Placerade en marker p den horisontella linjen vilken sammankopplar c och e punkterna tillter dig att tcka bde any craps och any eleven satsningar med ett enda vad 將籌碼放在c及e位置之間的橫線上將讓您一次可下注任何craps及任何eleven 。

Those methods are discussed in the third part to find out the different , and self - adjust elevation vad methods can get more valuable wind information 結果表明本文提出的自適應vad方法結合了前兩種vad方法的優點，能得到更實用的結果。

Vad der waals force of the aramid fibers , favor the penetration of dyes into the fibers and increase the dye pickup 通過采用化學助劑使芳綸分子之間的間隙增大，降低芳綸分子間的范德華力，有利于染料進入纖維內部，提高染料的上染率。