"Extra quality" still sounds like 128kbps. Solution: Check the source video. If the original YouTube video was uploaded in 240p (72kbps audio), no software can fix it. Search for the same song with "HQ" or "Audio 1080p" in the title.
The removes artificial restrictions (ads, batch limits, speed). The extra quality better feature, while partially marketing hype, does give you the best possible version of a YouTube stream—specifically by accessing OPUS 160kbps, which performs similarly to MP3 256kbps. "Extra quality" still sounds like 128kbps
Combine a licensed MP3Studio with a dynamic range compressor (like MP3Gain) to make those "extra quality" downloads sound even better across all your devices. Have you successfully used an MP3Studio license key to achieve 320kbps downloads? Share your experience in the comments below. Search for the same song with "HQ" or