ogg is the file suffix of an audio compression format. The full name of Ogg is OGG Vorbis, which is an audio compression format; it is completely free, open and without patent restrictions, and supports multi-channel. The ogg file format can continue to be improved in size and sound quality without affecting older encoders or players.
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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.
Advantages:
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. Vorbis is currently encoded in VBR (variable bit rate) mode. (A long time ago, MP3 could also be encoded in VBR mode. In addition, it also supports ABR (even bit rate) mode. ABR mode can obtain as much data as possible if the size is determined in advance. Possibly good sound quality, and MP3 supports improved sound quality through joint stereo encoding of left and right channels.) This allows Ogg files to be smaller, because the VBR method can process audio data that can be greatly compressed (such as silent periods) and save space.
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.
3. Ogg Vorbis format supports streaming
Audio streaming is an important part of Vorbis. The vorbis format has been designed to be easily streamed from the beginning. And, the designers of Vorbis are working with the creators of the Icecast streaming software to make Icecast compatible with Vorbis.
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 and flexible annotation, avoiding tedious operations like ID3 tagging of MP3 files; Vorbis also features bitrate scaling: the bitrate 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.
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