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This article could at least have a paragraph explaining (in a dumbed-down way) why various kinds of psychoacoustic masking (temporal, frequency) make what's rem
by a-french-anon 2y ago
This article could at least have a paragraph explaining (in a dumbed-down way) why various kinds of psychoacoustic masking (temporal, frequency) make what's removed almost inaudible anyway. Reading the linked source (https://www.theghostinthemp3.com/theghostinthemp3.html https://www.theghostinthemp3.com/theghostinthemp3.html), he at least used LAME, but at a fixed 128 kbps bitrate, not in VBR mode =(
EDIT: nerds should read about sfb21 (https://wiki.hydrogenaud.io/index.php?title=LAME_Y_switch https://wiki.hydrogenaud.io/index.php?title=LAME_Y_switch), AAC, Vorbis and Opus (CELT) aren't just theoretical improvements
- magicalhippo 2y agoIIRC then 128kbps and lower means a 16kHz low-pass filter is applied, while it's not for higher bitrates. So in that case not just psychoacoustics.
- theandrewbailey 2y agoI was under the impression that MP3 can't represent any frequency above 16kHz, no matter the bitrate.
- gwbas1c 2y agoThen they would all be 32khz, instead of 42.1khz or 48khz.
- Sonic656 2y agoMP3 is only good at 18KHz at V0/320kbps, Yet AAC & Vorbis can handle full 22KHz at 256kbps VBR with hotter audio(-15 ~ -5db) their VBR models can just use 384 ~ 960kbps. Yes Vorbis can actually reach 1.35mbit since It has no frame cap.