The full name of Ogg is OGG Vorbis, which is an audio compression format similar to MP3 and other music formats. But one difference is that it is completely free, open and without patent restrictions. OGG Vorbis is characterized by supporting more.
OGG format audio graph
Audio track.
The extension of Ogg Vorbis file is. OGG。 The design format of this file is very advanced. The created OGG file can be played on any player in the future, so this file format can be continuously improved in size and sound quality without affecting the old encoder or player.
MP3 is a lossy compression format, so compared with standard CD music, compressed data is lossy. VORBIS is also lossy compression, which reduces the loss by using more advanced acoustic models. Therefore, OGG coding sounds better than MP3 at the same bit rate. Another reason is that mp3 format is protected by patent (the patent fee of MP3 has been extremely low, and it has almost passed the protection period in the past 20 years). If you want to publish your own works in MP3 format, you need to pay royalties to Flawn Hof (the company that invented MP3). VORBIS has no such problem at all. For fans who want high-quality audio, FLAC is a better choice, because FLAC is lossless compressed audio and there is no patent licensing fee. Now many players have joined FLAC, even Sony's top high-resolution audio player supports it.
Advantages: 1:OGG Vorbis sound quality is comparable to MP3, but it cannot be compared with FLAC.
Because Vorbis uses a completely different mathematical principle from MP3, it faces different challenges when compressing music. In the listening test, Vorbis and MP3 files encoded at the same bit rate have the same sound quality.
If two files are encoded at the same bit rate and CBR (constant bit rate, which means that files have a bit rate from beginning to end), they must be the same size. The current Vorbis is based on VBR (which can be
OGG's trademark
Displacement rate), (MP3 can also be encoded with VBR long ago, and it also supports ABR (Bundle Rate), which can obtain the best sound quality under the condition of predetermined size. MP3 supports joint stereo coding of left and right channels to improve sound quality. This makes the Ogg file smaller, because VBR can handle audio data that can be greatly compressed (such as silence period) and save space.
Advantage 2: OGG Vorbis supports ID3 information similar to MP3.
Vorbis format includes a flexible and complete comment column, which can be used to fill in all kinds of relevant information.
Advantage 3: OGG Vorbis format supports streaming media playback.
Audio stream is an important part of vorbis. Vorbis format is based on simple streaming transmission from the beginning of design. In addition, the designers of Vorbis are cooperating with the creators of Icecast streaming media software to make Icecast compatible with Vorbis.
Advantage 4: OGG Vorbis avoids such complicated operations as ID3 tagging of MP3 files (ID3 modification software tagging of many MP3 files is no longer complicated).
Vorbis has a well-designed and flexible annotation, which avoids such complicated operations as ID3 tagging of MP3 files. Vorbis also has a bit rate scaling function: the bit rate of a file can be adjusted without recoding. Vorbis file can be divided into small pieces and edited with sample granularity; Vorbis supports multiple channels; Vorbis files can be logically connected and so on.
Disadvantages 1: poor playback compatibility. Mp3 has become synonymous with portable walkman. Most players, including mobile phones, PADs and other devices, support mp3 format (in fact, the licensing fee for mp3 patented chips is extremely low), while few players support ogg format.
Disadvantage 2: MP3 was born before 1997 and monopolized the consumer machine market for nearly 20 years. The popularity of ogg audio is very poor, the sound quality is not competitive compared with mp3, and the possibility of popularization is extremely low.
Disadvantage 3: ogg has no advantage over the popular Microsoft WMA format. Whether it is playing software compatibility, code rate, streaming media and so on.
Disadvantage 4: Multi-channel system has been monopolized by Dolby and DTS, both of which have complete production and distribution systems. Large-scale multi-channel film, television and music production are based on the technologies and standards of the two companies. Og can only sigh at the ocean.
Disadvantage 5: Many professional audio production software does not support ogg file format.
Disadvantage 6: HIFI has been replaced by new employees (high resolution). With the limitation of storage and network speed, users' listening devices have reached a higher level, and lossy formats have gradually lost the market.
I hope it can help you solve the problem.