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iTunes AAC problem sample
drezon
post Feb 9 2006, 00:38
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Stereo image wrong (even at 192kbps "VBR"), second synth sound which is played to the main "melody" synth (higher frequency one, percussion like used, positioned to the right) sounds strange at 128kbps (in addition to being wrongly positioned), didn't bother to check at 192kpbs.

Edit:
Uploaded encoded file(s).

This post has been edited by drezon: Feb 11 2006, 03:35
Attached File(s)
Attached File  thunder.flac ( 2.75MB ) Number of downloads: 2093
Attached File  thunder_128k.m4a ( 528.04K ) Number of downloads: 3703
Attached File  thunder_192k.m4a ( 763.39K ) Number of downloads: 2453
 


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Serge Smirnoff
post Feb 17 2006, 16:36
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I also can confirm strange behavior of iTunes (6.0.3.5) aac encoder. Here is a killer sample (glockenspiel) even for 320cbr. There are two distinct ringing artifacts in the right channel. The second file contains the version with amplified artifacts for convenience.

Attached File  glockenspiel_320cbr.flac ( 1.27MB ) Number of downloads: 1092

Attached File  glockenspiel.art.amp.flac ( 1.34MB ) Number of downloads: 1010


EDIT: Each file contains two samples - reference and encoded/decoded.

This post has been edited by Serge Smirnoff: Feb 17 2006, 16:49


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