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