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linux: added flac compression command

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Marten B. Kante
2025-12-23 02:25:40 +01:00
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wiki/linux/flac_(package).md
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@@ -12,7 +12,41 @@ Another possible tagging software is [MusicBrainz Picard](../picard.md)
## Usage
This section addresses the usage of the flac package.
### Splitting Flac file according to cue file
`shnsplit` can be used to split flac files.
In the [shnsplit article](/wiki/linux/shntool.md) an explanation on this is given.
### Compress or Recompress `.wav` and `.flac` files
`.flac` and `.wav` files can be compressed with the following command.
In this `<wav-flac-file>` is the path to the music file but can also use wildcards (for example
`*.wav`).
`<compression>` is the compression rate.
The highest compression preset is `8`.
```sh
flac -<compression> <wav-flac-file>
```
When recompressing `.flac` files the file does not have to be decoded to encode it again but can be
recompressed in one command.
According to a
[Reddit comment by berdmayne](https://www.reddit.com/r/foobar2000/comments1m3634l/best_way_to_reduce_flac_file_size_without_losing)
the compression rates of the different levels are the following.
| Level | Saving to level 0 | Saving to previous level |
| ---------------- | ------------------- | ------------------------ |
| 0 (uncompressed) | 0.0% | |
| 1 | 0.5% | 0.5% |
| 2 | 0.9% | 0.4% |
| 3 | 5.3% | 4.4% |
| 4 | 6.0% | 0.7% |
| 5 | 6.4% | 0.4% |
| 6 | 6.7% | 0.4% |
| 7 | 6.9% | 0.2% |
| 8 | 7.0% | 0.1% |