audio frame 中文意思是什麼
audio frame
解釋
伴音幀-
The focus is placed on the investigation of the standard of the encoding algorithm for mpeg audio layer iii, and the analysis of the major four modules in the compression algorithm, including encoding of subband filter bank, psychoacoustics model, quantification and huffman coding, frame packing
重點研究了mpeg音頻第層編碼的演算法標準。詳細分析了壓縮演算法中的四個主要功能模塊：子帶濾波器組編碼，心理聲學模型，比特流量化與霍夫曼編碼，幀數據流格式化。 -
With audio as master media stream and video as slave stream, the scheme makes a comparison between the presentation time stamp of the audio frame and the video frame which are played back recently to synchronize the presentation of video sequence with audio sequence
並以音頻流為主媒體流，視頻流為從媒體流，比較最近播放的音頻幀和視頻幀的播放時間標簽，調整視頻幀的播放持續時間來取得音視頻媒體間同步。 -
The bridge can continue push the dvb - c transport stream coming from the receive card to the universal media player to display online. in order to be compatible with the data rate in the bridge, the parser must have these functions : identifying the format of each elementary stream ( es ) ; repacketing the es frames or packets into small samples ; timestamping each sample for decoding and delivery by the arithmetic of getting the pts of an audio frame
音視頻解析器的設計兼容了橋接器對數據推送的速率，在該解析器中通過「解析音視頻基本流」演算法來識別出每一個流的格式、每一幀數據，並對這些數據重新打包成一個個數據sample ，再通過「音頻pts的獲取」演算法給這些sample打上正確的「 directshow 」時間戳，最後在相應的輸出pin上進行發送。 -
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。 -
Land piling, space frame system, landscaping, air - conditioning, audio electronics, burglar alarm and security, electrical, uninterruptible power supply, fire services, fountain, lift, escalator and passenger conveyor, mechanical plant and equipment, repair and restoration of historic buildings, etc
土地打樁、空間構架系統、綠化工程、空調裝置、音響裝置、防盜及保安裝置、電力裝置、無間斷供電裝置、消防裝置、噴水池裝置、升降機、自動梯及乘客輸送帶裝置、機械裝置、維修及修復有歷史性樓宇工程等 -
You can optimize format resolution, frame style, color, notes, outlines, audio, and scaling
您可以優化格式清晰度、框架樣式、顏色、注釋、大綱、音頻和縮放比例。 -
The sender tracks the packet loss status according to the algorithm - loss rate estimation based on variable frame size and switches two audio sample files in accordance with packet loss status
傳送端根據以變動框架長度為基礎之遺失率估演算法，來估算目前網路上封包遺失的狀況，並以此作為切換高低音質檔案的依據。 -
Audio - video object - based coding and description are the distinct features of mpeg - 4 standard. in the mpeg - 4 standard, video frame was composed of a series of independent semantic video object, which was encoded independently
在mpeg - 4標準中，視頻幀被認為是由一系列相互獨立的運動對象組成，視頻幀的編碼也直接針對一個個視頻對象。 -
In the part of platform designing, proper peripheral chips are chosen according to the audio signal format. and how to achieve channel synchronization in the receiving part is an important aspect of wireless transmission system. in order to solve this problem, three algorithms are used ; those are scramble / descramble, improved over - sampling, and frame synchronization protocol
在硬體驗證平臺的設計部分，文章根據音頻信號的特點選擇了適當的外圍晶元，並且針對無線傳輸接收端的同步問題，採用了三種演算法來減少失步現象，即擾碼/解擾演算法，改進型的過采樣演算法，以及幀同步協議。 -
Subsequently, the various audio and video compression protocols in surveillant system, especially the fundamentals of wavelet compression technology are introduced in chapter two. the comparison between wavelet transform and dct transform is given. the schemes of intra - frame coding and sequence frame coding based on wavelet compression are used as a standard in current system
第二章介紹了監控系統中所採用的各種音視頻壓縮協議，對小波壓縮技術的一些重要概念作了簡要的介紹，詳細比較了小波變換和dct變換的優缺點，給出了基於小波壓縮的單幀及序列幀編碼方案，並將其作為本系統的視頻壓縮標準。 -
Data types 0 it shall be possible to represent a large range of data types, both with natural and synthetic origin, as well as any combination of these data types, e. g. still pictures, frame - based as well as arbitrarily shaped video, specific and generic 3d models, graphics, text, natural and synthetic audio, natural and synthetic speech, etc
數據類型:應能夠表示各種不同的數據類型，包括自然的和合成的，也包括兩者的組合.如:靜止圖像，其于幀的視頻，任意形狀的視頻，專用的和通用的3d模型，圖形，文本，自然聲音和合成聲音，自然語音和合成語音等 -
On the basis of this introduction, some part of algorithm is improved. it includes : a new bit - allocation algorithm based on linear predication, that is to predicate the initial value used in bit - allocation procedure by the initial value of previous frame according to the correlation of the previous frame and the current frame. so the iterated loop number is reduced and the complexity of audio coding is reduced
其中的一些主要改進有：提出一種基於線性預測的比特分配演算法，即利用幀與幀之間存在的相關性，根據前幾幀的比特分配信息初值預測出當前幀的比特分配信息初值，通過合理設定比特分配信息初值，使得比特分配的迭代次數減少，從而節省了音頻編碼的運算量。
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