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audio: typos

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tiyn 2 years ago
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@ -78,11 +78,11 @@ For this a audio analyzer like
[Sonic Visualizer](https://www.sonicvisualiser.org/) is needed. [Sonic Visualizer](https://www.sonicvisualiser.org/) is needed.
Select a audio file and press `Add Spectogram` under `Layer`. Select a audio file and press `Add Spectogram` under `Layer`.
This will display a spectogram. This will display a spectogram.
Music off of a retail CD and lossless songs have frequencies that extend at Music off of a retail CD and lossless songs have frequencies that extend up to
least up to 22kHz. 22kHz and can extend even further for hi-res music.
If the frequency extends up to these 22kHz the file is lossless for sure. 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 is If the frequency is cut before and the file is encoded in a lossless file it has
has undergone a bad conversion and is not really lossless. undergone a bad conversion and is not really lossless.
## Extract Audio Files from CDs ## Extract Audio Files from CDs

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