查询词典 audio frequency

In theoretical study, the author analyzes the theoretical basis for the traditional medical audio-visual teaching materials, and the analysis of the role of constructionist theory and knowledge management in the redevelopment of traditional medical audio-visual teaching materials in web-based environment is especially focused.

理论上，笔者分析了传统医学视听教材的理论基础，并重点分析了建构主义理论和知识管理思想在网络环境下传统医学视听教材再开发过程中的作用。

The grammar entry includes second stored audio data and a word identifier associated with the second stored audio data.

语法条目包括第二存储音频数据和与第二存储音频数据相关联的单词标识符。

Because of the compatibility between DSP softwares, modules developed in this solution, such as front-end control, stream input, demultiplex, audio decoding, audio output can be used in the future.

由于DSP软件的兼容性，本方案开发的前端控制、码流输入、解复用、音频解码、音频输出等软件模块可在将来实现的系统中沿用。

Secondly, the platform of IPTV set-top box named DM6446 is introduced, and then the AVS video coding standard which is implemented as the video coding standard of IPTV is introduced. The kernel architecture, peripheral devices of DM6446 and the key technique of AVS video coding such as transformation, quantization, intra-prediction, inter-prediction, interpolation, and loop filter is introduced in detail. Thirdly, the system procedures of set-top box which are implemented on the ARM side of DM6446 are introduced in detail. This part focuses on the demultiplex of audio and video data, the design of data interface, the playback of audio and video, and the communication between ARM and DSP. Fourthly, the loop filter algorithm of AVS video coding standard is introduced in full detail, and the optimized procedures of the algorithm on the DSP side of DM6446 are introduced, and then the optimized results are presented. Fifthly, the thesis introduces and analyzes the state-of-art technique of deblocking filter, and proposes a deblocking method, and then the results of proposed method are given. Finally, summarize of this thesis and further development is given.

首先对IPTV技术、视频编解码技术以及去块滤波技术做了简要介绍；然后介绍了IPTV机顶盒的实现平台DM6446，并介绍了该处理器的外围接口和内核结构，同时介绍了作为本IPTV系统视频标准的AVS第二部分视频标准，以及该标准中变换量化、帧内预测、帧间预测、插值和环路滤波等多个模块的算法；接着，详细介绍了机顶盒系统相应程序在DM6446 ARM核上的实现，重点介绍了音视频系统码流的解复用、数据接口设计、音视频的播放以及ARM核与DSP核之间的通信；然后，详细介绍了AVS视频标准中环路滤波算法及该算法在DM6446 C64+内核上的优化，并给出优化结果；然后对去块滤波算法进行了研究并提出了一种环路滤波方案，同时给出了此方案的实验结果；最后总结了本文的工作，并提出了可以改进的方向。

Mei Wo Enterprise is a professional maker of audio and video works, in order to better serve the special needs of customers Mei Wo independent research and development enterprises of the Central Control System and Matrix Product, at the same time also as agents such as Branch, Barco, DNP and other international well-known brand high-end audio and video products.

美禾企业是专业的音视频工程商，为了更好服务于客户的特殊需求美禾企业自主研发了中央控制系统及矩阵产品，同时公司还代理了诸如科视、巴可、DNP等国际著名品牌的高端音视频产品。

You can also increase the audio quality by selecting a higher Audio Bitrate from its drop-down menu.

您还可以提高音频质量选择一个更高的音频比特率从下拉菜单。

Switch between two audio signals in a single phone, one from a digital baseband detector, the other from an analog baseband detector, to drive the final audio output to an ear piece.

两个音频信号的切换一个电话，从数字基带探测器之一，从一个模拟基带探测器等，以推动最后的音频输出到一个耳片。

Company's existing products for LD, CD, VCD, DVD, MD Recorder, CD-ROM and Camcorder such as audio, audio-visual equipment, spindle, skinhead, open boxes electric motors as well as Salisbury, electronic blood pressure device, game, gas valve, cash registers, electric toothbrushes, electric kettle, hair dryer, electric stove, massage chairs and so on supporting DC, and ultra-thin brushless motors, the main models have 300,310, 370,380,385,400,500,520,530,540,545,550,555,775,050,030,031,032, N30, N20, M20, K20, 180,130,12025 B10, CT-22 and brushless motor, hand-cranked generator series.

公司现有主要产品为LD、CD、VCD、DVD、MD Recorder、CD-ROM和Camcorder等音响、音像设备的主轴、光头、开盒马达以及电梳、电子血压仪、游戏机、燃气阀、点钞机、电动牙刷、电热水壶、电吹风、电磁炉、按摩椅等等配套直流、无刷及超薄马达，主要型号有 300、310、370、380、385、400、500、520、530、540、545、550、555、775、050、030、031、032、N30、N20、M20、K20、180、130、12025B10、CT-22及无刷电机、手摇发电机系列等。

Products are widely used in aviation models, electric toys, household appliances, audio-visual equipment, power tools, camcorders, audio equipment, medical equipment, health care massage apparatus, electric toothbrushes, electric shaver shaving, eyebrow pencil iron, hair dryer areas such as Product sold at home and abroad, and excellent quality of the customer to establish an excellent reputation.

产品广泛应用于航空模型、电动玩具、家用电器、视听设备、电动工具、便携式摄像机、音响设备、医疗器械、按摩保健器械、电动牙刷、电动剃须刨、烫眉笔、电吹风等领域，产品远销国内外，并以优良的品质在客户中树立起了极佳的口碑。

The film or movie is the most popular and common video resource. In this paper we use the film video as an example, aims to implement real-time retrieve of explosion and shot scenes, has carried on the following research mainly: first, we proposed a method of real-time recognition of explosions based on dominate-color and audio information and improved the accuracy the retrieve;second, we proposed a method of real-time retrieve of shots scenes based on audio information and differences between frames when the shot occurs;third,a whole video abstraction system is proposed, it can cut off the clips which have been retrieved and merge them into a independent video abstraction in the same time edit the information of the it ;forth, it offers two-level retrieval structure of"key frame-highlights"and can play segmentation result and the whole video just like a video player.

电影或电视剧视频是人们日常生活中最喜闻乐见也是最常见的视频内容，本课题以此类视频为研究素材，目的是实现实时爆炸和枪击场景的检测，主要进行了以下几个方面的研究：1针对视频中爆炸场景的主色和音频特点，提出了一种基于声像特征的实时爆炸场景检测算法；2捕捉视频中枪击事件瞬间的帧间变化信息和相应音频信息，提出了一种基于声像特征的实时枪击场景检测算法；3从原始视频中切割检索到的精彩视频场景合并成单独精彩缩略视频，并可进行相关信息编辑，形成比较完备的视频摘要系统；4形成关键帧-精彩视频场景的二级浏览结构，可对分割结果或整个视频片断进行播放，基本实现播放器的功能。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。