For a YouTube video like this,
https://youtu.be/weQz5tGEKwEDoes 1080 provide better sound than 720 which provides better sound than 480?
If you download this as music file using Firefox's addon called "Easy Youtube Video Downloader Express", would there be no degradation of audio quality?
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It does provide MP4 1080p (full-hd) option, which I suppose would be same quality.
But what about MP3 (HQ 256kbps)? Would that be as good as the 1080p sound? This is the highest quality you can download as mp3 file, the other being 128kbps. (To download, one needs to be a PRO user, which cost $10)