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Full Version: So what does this really mean? (dogwhistle sample)
Hydrogenaudio Forums > Lossy Audio Compression > MP3 > MP3 - Tech
Zaraza
Should we be switching then to "fast" standard for all of our encoding, or is the standard one still the most recommended and this sample is just one highly isolated case?
CiTay
No, this is a special case. It's a 15 KHz sinus tone (a little dirty).. You can create a similar one by using a base frequency of 15 KHz and a modulation frequency of 2 KHz, modulating by some <500 Hz, then adding some noise which has to stay "above" the ATH (this step is important, it eats up bitrate). wink.gif

It shows a flaw of vbr-old, but i don't think it affects "normal" music too much. Basically, the fact that --r3mix comes out on top of --alt-preset standard should be proof that this result can't just be projected onto "everyday encoding" like this.
LotionBoy
how is it a flaw in vbr-mtrh if the fast preset which uses mtrh is the only preset that correctly encodes the tone. doesn't that point to a flaw in vbr-old?

LotionBoy
CiTay
Ah yes sorry.. i confused vbr-old and vbr-mtrh.. ohmy.gif
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