w3pop.com :: 网络学院 :: Internet :: 多媒体音频格式
多媒体音频格式 
Sound can be stored in many different formats.
声音可以使用多种不同格式保存。
The MIDI Format
MIDI格式
The MIDI (Musical Instrument Digital Interface) is a format for sending music information between electronic music devices like synthesizers and PC sound cards.
MIDI （乐器数字界面）是用于在电子音乐设备中发送音乐信息的的格式，类似于电子合成器和PC声卡。
The MIDI format was developed in 1982 by the music industry. The MIDI format is very flexible and can be used for everything from very simple to real professional music making.
MIDI格式是于1982年开发的音乐产业。MIDI格式非常灵活，它可以用于制作真正专业的音乐。
MIDI files do not contain sampled sound, but a set of digital musical instructions (musical notes) that can be interpreted by your PC's sound card.
MIDI文件并不包含样本声音，但是它包含了一组被PC声卡识别的数字乐器（音符）。
The downside of MIDI is that it cannot record sounds (only notes). Or, to put it another way: It cannot store songs, only tunes.
MIDI的下端并不能记录声音（仅音符）。或者，它可以通过另外一种方式输出：它不能存储歌曲，只能保存曲调。
Click here to play The Beatles.
点击这里欣赏Beatles（MIDI格式）。
The upside of the MIDI format is that since it contains only instructions (notes), MIDI files can be extremely small. The example above is only 23K in size but it plays for nearly 5 minutes.
MIDI格式的上端因为只包含乐器（音符），所以MIDI文件非常小。23K大小的midi文件可以播放5分钟。
The MIDI format is supported by many different software systems over a large range of platforms. MIDI files are supported by all the most popular Internet browsers.
MIDI格式被很多的平台及软件支持。当今几乎所有的网络浏览器都支持MIDI文件。
Sounds stored in the MIDI format have the extension .mid or .midi.
MIDI格式文件的扩展名为.mid 或 .midi。
The RealAudio Format
RealAudio 格式
The RealAudio format was developed for the Internet by Real Media. The format also supports video.
RealAudio格式是由Real Media公司开发的网络播放器。该格式也支持视频。
The format allows streaming of audio (on-line music, Internet radio) with low bandwidths. Because of the low bandwidth priority, quality is often reduced.
该格式允许使用低带宽音频（在线音乐、网络广播）流。因为它保证了低带宽的运行状态，所以播放的音频、视频质量不佳。
Sounds stored in the RealAudio format have the extension .rm or .ram.
RealAudio格式文件的扩展名为.rm 或 .ram。
The AU Format
AU 格式
The AU format is supported by many different software systems over a large range of platforms.
AU 格式被很多的平台及软件支持。
Sounds stored in the AU format have the extension .au.
AU格式文件的扩展名为.au。
The AIFF Format
AIFF 格式
The AIFF (Audio Interchange File Format) was developed by Apple.
AIFF （音频交换文件格式）是苹果公司开发的。
AIFF files are not cross-platform and the format is not supported by all web browsers.
AIFF 文件不是一个可供交互的平台，并且该格式并不被所有的网络浏览器所支持。
Sounds stored in the AIFF format have the extension .aif or .aiff.
AIFF格式文件的扩展名为.aif 或 .aiff。
The SND Format
SND 格式
The SND (Sound) was developed by Apple.
SND（声音）是苹果公司开发的。
SND files are not cross-platform and the format is not supported by all web browsers.
SND 文件不是一个可供交互的平台，并且该格式并不被所有的网络浏览器所支持。
Sounds stored in the SND format have the extension .snd.
SND格式文件的扩展名为.snd。
The WAVE Format
WAVE 格式
The WAVE (waveform) format is developed by IBM and Microsoft.
WAVE（波形）是IBM和微软公司共同开发的。
It is supported by all computers running Windows, and by all the most popular web browsers.
WAVE 格式的文件可以在Windows操作系统中运行，并且被所有的网络浏览器所支持。
Sounds stored in the WAVE format have the extension .wav.
WAVE格式文件的扩展名为.wav。
The MP3 Format (MPEG)
MP3格式（MPEG：运动图像专家组, 一种压缩比率较大的活动图象和声音的压缩标准）
MP3 files are actually MPEG files. But the MPEG format was originally developed for video by the Moving Pictures Experts Group. We can say that MP3 files are the sound part of the MPEG video format.
MP3文件是真正的MPEG文件。但是MPEG格式最初是由运动图像专家组开发的视频格式。我们可以这样说，MP3是MPEG视频格式的声音部分。
MP3 is one of the most popular sound formats for music recording. The MP3 encoding system combines good compression (small files) with high quality. Expect all your future software systems to support it.
MP3是当今最为流行的音乐记录格式。MP3的文件不大，压缩率高，但同时还最大限度的保证了音质。期待将来所有的软件系统都能够支持这个格式。
Sounds stored in the MP3 format have the extension .mp3, or .mpga (for MPG Audio).
MP3格式文件的扩展名为.mp3 或 .mpga （MPG 视频）。
What Format To Use?
那么，我们该使用怎样的格式呢？
The WAVE format is one of the most popular sound format on the Internet, and it is supported by all popular browsers. If you want recorded sound (music or speech) to be available to all your visitors, you should use the WAVE format.
WAVE 格式是网络中最为流行的声音格式，当今几乎所有流行的浏览器都支持这个格式。如果你希望保存自己的声音（你唱的歌或讲的话），并能够将它在所有的访问者面前播放，那么你应该使用WAVE格式。
The MP3 format is the new and upcoming format for recorded music. If your website is about recorded music, the MP3 format is the best choice.
MP3 格式是一个全新的格式，并且它即将作为音乐唱片所通用的保存格式。如果你的网站由关于音乐唱片的内容，那么MP3格式将会是你最好的选择。
评论 (0)
All
