音频

The system is based on a 'subaudible' tone injected after the audio stages into the transmitter during encode and the tone is detected before the audio circuits in the receiver.

这套技术的基本原理如下，进行编码的时候，一个"亚音"音频信号被注入声音信号，并在接收端的音频电路前检测这个音频信号解码。

In the commercial equipment, the audio bandwidth tends to be narrower than our amateur equipment and there are circuits installed to filter out the tones so they are truly subaudible.

在商业设备中，声音频宽比业余设备更窄些，并且，配备有专门的电路用于过滤音频，于是，这些音频信号真正的成为了"亚音"，不会被听到。

In the commercial equipment, the audio bandwidth tends to be narrower than our amateur equipmentand there are circuits installed to filter out the tones so they are truly subaudible.

在商业设备中，声音频宽比业余设备更窄些，并且，配备有专门的电路用于过滤音频，于是，这些音频信号真正的成为了"亚音"，不会被听到。

Support 720p/1080i - Playback files in PC through wired Ethernet (10/100Mbps)- Playback the recorded contents in HDD; Playback the files stored in HDD - directly playback the files on external devices like USB drive, HDD, Card reader(through USB2.0 Host Port)- support multiple file format: MPEG 1 /2/4, DivX, Xvid, VCD/SVCD/DVD, MP3/WMA, Dolby digital, AC3, JPEG, Kodak picture CD - fast forward/reverse, repeat playback - view Pictures in various ways: Rotate, zoom, music slide show Transferring/storage function - with USB2.0 Target port and USB2.0 Host port - work as USB HDD when connected to USB port on PC for file store / backup / transfer (through USB2.0 Target port)- supports USB drive, HDD, Card reader data exchange (through USB2.0 Host port) Editing recorded A/V title without PC - HDD format - AB Erase, split title, merge title, add chapter mark - Copy, delete, Rename Terminals: Composite video in, composite video out, component video out, left/right audio in, left/right audio out, mini optical audio out, RJ45 net port, USB2.0 Host, USB 2.0 Target HDD Support IDE HDD, support FAT32 File Support FAT32 and NTFS Power: DC12V(1.5A) Power consumption: 1W, 6W.

支持720 p/1080i的影像-播放档案的电脑，通过有线以太网（ 1 0/100）-重放所记录的内容，在硬盘；重放档案储存在硬碟-直接播放该档案的外部设备，如U S B驱动器，硬盘，智能卡阅读器（通过u sb 2 0.0主机端口）-支持多种文件格式：的M PEG1 / 2 / 4 ，转换，音频，视像/格式/数码影碟， m p3/wma，杜比数字， a c3，的J PEG，柯达图片光盘-快速前进/扭转，重复播放-看照片以各种方式：旋转，缩放，音乐幻灯片播放转让/存储功能-与U S B2.0的目标端口和U S B2.0主机端口-工作作为U SB硬碟当连接到US B端口的电脑档案储存/备份/转让（通过USB2.0的目标端口）-支持U SB驱动器，硬盘，智能卡阅读器的数据交换（通过U SB2.0主机端口）编辑记录的音频/视频标题，没有电脑-硬盘格式-抗体抹掉的，分裂的所有权，合并名称，地址章马克-复制，删除，重命名终端：复合视频，复合视频，分量视频输出，左/右音频，左/右音效输出，迷你光学音效输出，接头R J45网络端口， U SB2.0主机， USB 2.0接口目标硬盘支持的IDE硬盘，支持FAT32文件的支持和FAT32和NTFS电源：： DC12V （ 1.5A和）耗电： 789， 6瓦特。

It allows you to perform various operations with audio data such as displaying a waveform image of an audio file, filtering, applying various audio effects, format conversion and more.

它可以让您执行各种业务与音频数据，如显示波形的形象，音频文件，过滤，应用各种音频效果，格式转换，以及更多。

Contrast to the image retrieval ,the research in the audio field lagged.This paper summaries the situation of audio retrieval ,combining with material of the MPEG standard and content based retrieval .And propose the protype of a Query by humming sytem based on the ICA,which can solve the cocktail problem very good.

目前音频数据库的研究相对于图象处于滞后，文中侧重音乐角度，结合 MPEG标准和基于内容检索的应用，综述了音频检索的研究现状，分析了音频方面研究的特殊性和相关应用中的问题；并提出基于独立分量分析的按调查询的系统，较好地解决了特征提取中的鸡尾酒会效应问题。

The article through practice analysizes the local wireless broadcasting system, application of the elements and means of communication technology is being updated, A set of half-automatic broadcasting system controlled by hardware has been designed and assembled; A set of all-automatic broadcasting system controlled by computers has been designed and assembled; A set of emission equipment has been designed; Noise has been lowered in the transmission of audio-frequency so that the audio effect has been raised; new ways of audio-frequency transmission have been developed based on the technology of computer network.

本文通过对局域无线广播系统运行现状的分析和研究，运用电子信息技术的基本原理和方法，设计并自行装配了一套由硬件控制的半自动播出系统；研究开发了一套由计算机软件控制的全自动播出系统；设计了发射装置；通过对音频信号的传播环节进行降噪处理来提高收听品质；基于数字音频技术，开辟新的音频传播途径；并对系统功能的拓展进行探讨。

According to the structure of terrane and exploring water result of coal floor disclosed by hydrology drill hole,it is demonstrated that there exists strong relationship among abnormal apparent conductivity, crack in rock stratum and the extent of filled water in crack,an.

应用音频电透视技术，分析了杨村煤矿2702工作面底板30 m和50 m深度界面的探测成果，并与井下水文钻孔揭露的煤层底板岩层结构及探水结果对比研究，发现音频电透视探测的煤层底板综合视电导率高异常与岩层的裂隙性及其充水程度具有很强的关联性；岩层裂隙与含水层连通性良好部位明显显现视电导率高值异常，结果表明，音频电透视探测成果能够综合反映底板岩层的阻水条件。

Check connections speaker and sound card, ALS007 sound card has two audio output sockets, that is, Line Out and SPK, Line Out jack of the audio output signal without amplification, used to access Active Speaker or amp; SPK socket built-in sound card output by the audio signal amplifier for the next passive speaker or speakers.

检查一下音箱和声卡的连线，ALS007声卡有两个音频输出插座，即Line Out和SPK，Line Out 插座输出未经放大的音频信号，用于接有源音箱或放大器；SPK插座输出经声卡内置放大器放大的音频信号，用于接无源音箱或喇叭。

This system is distributed monitoring system, which is connected with about one hundred audio-controllers, and has realized to its each monitoring function, like audio monitor, trouble self-checking, audio control and so on.

该系统是一对多的分布式远程监控系统，与百台左右的音频控制器互联，实现了对其的各项监控功能，如音频监听、故障自检、音频控制等。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。