What is OGG--HTML5 knowledge

What is Ogg?
Vorbis Ogg Vorbis is a new audio compression format, similar to existing music formats such as MP3. But the difference is that it is completely free, open, and without patent restrictions. Vorbis is the name of this audio compression mechanism, while Ogg is the name of a plan designed to design a completely open multimedia system. Currently, this plan only implements the oggvorbis part.

The extension of the Ogg Vorbis file is. Ogg. The design format of such files is very advanced. Currently, the created Ogg file can be played on any player in the future. Therefore, files in this format can be continuously improved in size and sound quality without affecting

The old encoder or player.
Features
Ogg is an advanced lossy audio compression technology named Ogg Vorbis. It is a free open source audio format. The Ogg encoding format is far more advanced than the MP3 developed in 1990s. It can achieve better sound quality than MP3 at a relatively low data rate. In addition, Ogg Vorbis supports two encoding modes: VBR (variable bit rate) and ABR (average bit rate). Ogg also supports bit rate scaling and can adjust the file bit rate without re-encoding.
Ogg format can be used to encode all audio channels. It supports multi-channel mode, unlike MP3, which can only encode dual-channel. Multi-channel concerts bring more sense of presence, and enjoy more advantages in movies and symphony. This revolutionary change is not supported by MP3. In the future, people will constantly improve their requirements for sound quality, and the advantage of Ogg will become more obvious.

Why use Ogg Vorbis format

As we all know, MP3 is a lossy compression format, so the compressed data is lost compared with the standard CD music. Vorbis is also lossy compression, but the loss is reduced by using more advanced acoustic models. Therefore, Ogg encoded at the same bit rate sounds better than MP3. Another reason is that the MP3 format is protected by patents. If you want to publish your work in MP3 format, you need to pay the patent usage fee to Fraunhofer (the company that invented MP3. Vorbis has no such problem.

For fans, the significant advantage of using Ogg files is that they can achieve superior sound quality with smaller files. Moreover, because Ogg is completely open and free, the production of Ogg files will not be subject to any patent restrictions, and a large number of encoders and players are expected to be obtained. This is why there are so few MP3 encoders and most of them are commercial software, because Fraunhofer is charged for patent fees.

Additional reading: http://baike.baidu.com/view/660357.htm