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Lars Noack 2023-01-09 10:46:05 +01:00
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notes.md
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@ -65,10 +65,31 @@ There are two types:
1. lossless compression 1. lossless compression
2. lossy compression 2. lossy compression
[Here a comperison of audio coding formats.](https://en.wikipedia.org/wiki/Comparison_of_audio_coding_formats)
The two criterias, which NEED to be met is:
1. open source
2. the encoder as well as the player need to be free to use
## container ## container
[Wikipedia](https://en.wikipedia.org/wiki/Container_format) [Wikipedia](https://en.wikipedia.org/wiki/Container_format)
A container embeddes the metadata in a file. In this case I am interested in containers regarding audio.
### considerations
Important differences between container, that I need to consider when choosing one, *cuz I only implement this shit once*, are:
1. advanced content, meaning which fields there are, for example title, length, ...
2. popularity *(the more poppular it is, the better will be the support between different software)*
3. support for different [codec features](#audio-codec) *(older codecs might not support newer frames)*
4. overhead *(different file size with different data, though this certainly is less an issue with audio)*
5. support streaming the media
These destinctions are sorted from top to bottom.
## audio codec ## audio codec
[Wikipedia](https://en.wikipedia.org/wiki/Audio_codec) [Wikipedia](https://en.wikipedia.org/wiki/Audio_codec)