comfort noise 中文意思是什麼
comfort noise
解釋
舒適噪聲-
European digital cellular telecommunications system - half rate speech - part 4 : comfort noise aspects for the half rate speech traffic channel ; english version ets 300581 - 4 : 1995
歐洲數字移動電話遠程通信系統.半價話務.第4部分:半 -
The basic characteristics of the current data network are point - to - point, connectless, doing one ' s endeavor, no quality of service, etc. these characteristics do not meet the requirement of real - time services, therefore, the realization of voip need support of the some key technology. these technologies includes : speech sound coding and data compression, real - time transmission and control, mute compression and multicast, acoustic - echo cancellation and comfort noise generator, dynamic monitor and guarantee of quality of network service, as well as, the compatible of different network and different protocol with each other
但現有的數據網路的基本特性：點對點的、無連接的、盡力而為的、沒有服務質量保證等特性並不適合與實時的業務要求，因此voip的實現需要一些關鍵技術的支持，這些技術包括：語音編碼和壓縮技術、實時傳輸和控制技術、組播技術、靜音壓縮和舒適噪聲生成技術、回聲消除技術、網路服務質量的動態監測和保證技術、以及不同的網路、不同的協議之間的互連互通等等。 -
According to the project of adaptive multi - rate speech coding ( amr ) being put forward by the third generation group of the mobile communication, this paper takes the principle of the speech arithmetic as the base, studies the technologies including the source controlled rate, voice activity detector, comfort noise and the error concealment unit in amr, discusses its the characteristic of adaptation and analyses its performances particularly. amr c codes are researched carefully through the modules being divided into and debugged under the tms320c54x provided by the ti corporation, and optimized in selecting the method of c code embedded assembler codes and simplified in the search codebook combining with the theory of speech coding, which are based on the realization about theory and practice of the optimization of amr speech coding
從自適應多碼率語音編碼演算法的c代碼出發，對它進行模塊劃分後作了系統分析，將其在vc下調試通過，進一步在ti公司提供的tms320c54x環境中進行調試，結合語音編碼理論，對演算法進行優化，採用了在c代碼中嵌入匯編和簡化自適應碼本和固定碼本搜索的方法，部分地提高了c代碼效率，為實現自適應多碼率語音編碼的優化奠定了理論和實踐基礎。 -
To reduce noise, vibration and wheel / rail force, and improve ride comfort and fatigue life of wheel / rail, the resilient wheelset becomes the inevitable outcome of urban public traffic
為了降低噪聲、振動、提高乘坐舒適性、降低輪軌作用力及提高輪軌疲勞壽命，彈性輪對車輛的誕生就成為城市公共交通發展的必然產物。 -
As a new vehicle, high - speed maglev vehicle ( hsmv ) has the advantage of high velocity, less energy consuming, lower noise, safety and comfort, and is fit for high - speed transport
高速磁懸浮列車具有速度快、能耗低、噪音小、安全舒適等優點，適合城市之間的快速客運需求，它是一種新型的交通工具。 -
Other characteristics of the cyberport minibus which help to enhance passenger safety and comfort include an automatic sliding door ; a longer vehicle with more space between seats as well as higher back support for passengers ; and tightly sealing windows to reduce outside noise and enhance air - conditioning efficiency. all six minibuses are painted with the cyberport logo for easy identification. video facilities will be installed later to upgrade passenger entertainment
此外，數碼港小巴還有不少突出之處，如車門為電動趟門，格外照顧乘客的上落安全；而且車身特長，車廂內部寬闊，令座位之間空間更大，加上座椅椅背特長，讓乘客獲得更佳的乘車享受；玻璃窗門更採用了密封式，不單確保車廂寧靜安全，更可提高製冷效果，更為環保。 -
It is characterized by luxury, beautiful looking, comfort, good stability and low noise, suitable for transporting passengers in inland rivers and hk - macao line
具有豪華美觀舒適穩性好噪音低的特點，適于內河和港澳線的客運。 -
Foldable design and adjustable headband provides added comfort and fit. protection against harmful noise. replaceable soft foam - filled cushion
工藝：可折疊、頭箍可調節，佩戴相當舒適。即使在低頻時都可最大程度減低噪音。耳罩內填充的泡沫軟墊可更換。 -
Proper arrangement of them significantly reduces the energy consumed and noise level and ensures the input power and noise index, solves the problem of insufficient air volume supplied, and improves the indoor thermal comfort effectively
通過對這些部件的合理布置，大幅度降低機組能耗及噪聲，保證了產品輸入功率及噪聲指標，解決了傳統盤管在實際運行時風量小的問題，有效提高了空調房間的舒適性。
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