The full name of Ogg is OGGVobis (oggVorbis), which is an audio compression format, similar to music formats such as MP3. Ogg is completely free, open and patent-free. The extension of OggVorbis files is ".ogg". The Ogg file format can continue to be improved in size and sound quality without affecting older encoders or players.

The full name of Ogg is OGG Vorbis, which is an audio compression format, similar to music formats such as MP3. But one thing is different: it is completely free, open and patent-free. One feature of OGG Vorbis is that it supports multiple

OGG format audio graphics

channels.

The extension of the Ogg Vorbis file is .OGG. The design format of this file is very advanced. OGG files are created that can be played on any future player, so the file format can continue to improve in size and sound quality without affecting older encoders or players.

MP3 is a lossy compression format, so the compressed data is lossy compared with standard CD music. VORBIS is also a lossy compression that uses a more advanced acoustic model to reduce losses. Therefore, OGG encoded at the same bit rate sounds better than MP3. In addition, there is another reason. The MP3 format is protected by patents (mp3 patent fees are already extremely low, and the protection period is about to expire nearly 20 years after its birth). If you want to use the MP3 format to publish your own works, you need to pay Fraunhofer (the company that invented MP3) royalties. VORBIS does not have this problem at all. For music fans who want high-quality audio, using FLAC is a better choice, because FLAC is lossless compressed audio, and there is no patent licensing fee. Now many players have joined the ranks of FLAC, even Sony's top high-end Parsing audio players are already supported.

Advantage 1: The sound quality of Ogg Vorbis is comparable to MP3, but cannot be compared with FLAC.

Because Vorbis uses completely different mathematical principles compared to MP3, the challenges faced when compressing music are also different. In listening tests, Vorbis and MP3 files encoded at the same bit rate had equivalent sound quality.

If two files are encoded with the same bit rate and CBR (constant bit rate, which means the file is a bit rate from beginning to end), then their sizes must be the same. Currently Vorbis is encoded in VBR (OGG's trademark

bit rate) encoding. (A long time ago, MP3 could also be encoded in VBR. In addition, it also supports ABR ( (tie bit rate) method, ABR method can obtain the best possible sound quality while determining the size in advance, and MP3 supports joint stereo encoding of left and right channels to improve sound quality) This allows Ogg files to be smaller, because VBR method can. Save space by processing audio data that can be greatly compressed (such as periods of silence).

Advantage 2: Ogg Vorbis supports ID3 information similar to MP3

The Vorbis format includes a flexible and complete comment column that can be used to fill in various related information.

Advantage 3: Ogg Vorbis format supports streaming playback

Audio streaming is an important part of Vorbis. The vorbis format has been designed from the beginning to be easily streamable. deal with. And, the designers of Vorbis are working with the creators of the Icecast streaming software to make Icecast compatible with Vorbis.

Advantage 4: Ogg Vorbis avoids cumbersome operations like ID3 tagging of MP3 files (there are many ID3 modification software tags for MP3 that are no longer cumbersome)

Vorbis has a well-designed , flexible annotations, avoiding cumbersome operations like ID3 tagging of MP3 files; Vorbis also has bit rate scaling: the bit rate of the file can be adjusted without re-encoding.

Vorbis files can be divided into small chunks and edited at sample granularity; Vorbis supports multiple channels; Vorbis files can be connected in a logical manner, etc.

Disadvantage 1: Poor playback compatibility. MP3 has become synonymous with portable walkman. The vast majority of players, including mobile phones, pads and other devices, support the mp3 format (in fact, the license fee for MP3 patented chips is extremely low), but there are very few players that support the ogg format.

Disadvantage 2: MP3 was born before 1997 and has monopolized the consumer machine market for nearly 20 years. The popularity of ogg audio is very poor. Compared with mp3, the sound quality is not competitive, and the possibility of popularization is extremely low.

Disadvantage 3: Compared with the already popular Microsoft WMA format, ogg has no advantages. Whether it is playback software compatibility, bit rate, streaming media, etc.

Disadvantage 4: The 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 these two companies. ogg can only sigh in despair.

Disadvantage 5: Many professional audio production software do not support the ogg file format.

Disadvantage 6: Today, HIFI has been replaced by HIRES (high resolution). With storage, network speed and other limitations, users' listening equipment has reached a higher level, and lossy formats have gradually lost market.

I hope I can help you clear up your doubts.