Youtube audio high quality rip 1920P to 320 MP3

[beattorrent]

I just want to ask if I download a 1920P HD video on youtube and extract the audio by using garageband, would that be a legit 320 MP3? if so how would I know? because there are some hard to find tracks that are not available for sale but uploaded on youtube to the highest quality so I would just rip them and extract the audio then convert them to 320 MP3 via iTunes. Let me know what you think! Thanks

[RottenPony]

According to wikipedia both 720p and 1080p use 192kbit/s aac audio. AFAIK the best option would be to rip the audio without re-encoding it. Sadly i dont know any programs that could do it.

So the short answer is no.

[RottenPony]

Every time you re-encode using a lossy format you lose quality.
http://tinyapps.org/blog/mac/2012112207 ... o_mp4.html
Download the mp4 and try the methods in the link. That way you will get a file that is exactly the same quality as in youtube and should drop into iTunes.

If you cant do it and have only a couple of songs then you can PM me the links and i will convert them for you.

[beattorrent]

According to wikipedia both 720p and 1080p use 192kbit/s aac audio. AFAIK the best option would be to rip the audio without re-encoding it. Sadly i dont know any programs that could do it.

So the short answer is no.

I've download Spek Acoustic Spectrum Analyzer yesterday when I got home and these are the results:

Here is for the 1920P Youtube rip that I extracted using garageband:


this clearly shows that the audio quality is only at 128kbps even though it says 320kbps.

This one is a legit 320 file:


For a legit 320 high quality audio the cut-off should be at 20 kHz based on this guide:

MP3 file, Bitrate 64 kbps. Cut-off at 11kHz
MP3 file, Bitrate 128 kbps. Cut-off at 16 kHz.
MP3 file, Bitrate 192 kbps. Cut-off at 19 kHz.
MP3 file, Bitrate 320 kbps. Cut-off at 20 kHz.
M4A file, Bitrate 500 kbps. Cut-off at 22 kHz.
FLAC file, Lossless quality (Bitrate usually 1000 kbps or higher)

I think I'm going to try the methods from the link that you provided. I will let you know of the result once I'm done.

[beattorrent]

Unfortunately I got the same result as before after doing the methods in http://tinyapps.org/blog/mac/2012112207 ... o_mp4.html I guess i'll just ask someone who has a copy of the tracks that I need.