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audio: typos

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@ -78,11 +78,11 @@ For this a audio analyzer like
[Sonic Visualizer](https://www.sonicvisualiser.org/) is needed.
Select a audio file and press `Add Spectogram` under `Layer`.
This will display a spectogram.
Music off of a retail CD and lossless songs have frequencies that extend at
least up to 22kHz.
If the frequency extends up to these 22kHz the file is lossless for sure.
If the frequency is cut before and the file is encoded in a lossless file it is
has undergone a bad conversion and is not really lossless.
Music off of a retail CD and lossless songs have frequencies that extend up to
22kHz and can extend even further for hi-res music.
If the frequency extends up to at least 22kHz the file is lossless for sure.
If the frequency is cut before and the file is encoded in a lossless file it has
undergone a bad conversion and is not really lossless.
## Extract Audio Files from CDs