320 kbps AAC option outputs lower quality (~160 kbps) #134
Description
Hello,
When selecting the 320 kbps AAC download option, the resulting file does not appear to be true 320 kbps quality.
A spectrogram analysis shows a clear cutoff above 17 kHz, which is typical of ~160 kbps AAC encoding. The high-frequency content is noticeably reduced and does not match what should be expected from proper 320 kbps AAC.
For comparison, standard .m4a AAC files from Apple Music (~256 kbps) preserve the upper spectrum correctly and do not show this limitation.
Could you clarify whether this is a bug or an encoding issue?
Thank you.
