On 04/11/2014 08:30 AM, nospam wrote:
In article , dave
wrote:

Try listening to a viola bow on a moderate bitrate aac+ file, or the
breathy sounds of an isolated female vocal. On some material all the
shortcomings and mathematical anomalies manifest at once. Certain pure
tones can turn fool the decoder to produce "aliasing" artifacts for no
reason.

aliasing is due to undersampling, not a codec, and the sampling rate is
high enough to reproduce all audible frequencies (and then some),
especially for anyone past about 20-30 years old.

i guarantee that in a double-blind test you won't be able to tell the
difference between an original aiff and an aac. countless such tests
have shown this to be true for others.


I am referring to SBR, which you edited away.