[vorbis] 24/96 ?
gtgbr at gmx.net
Thu Dec 20 10:04:00 PST 2001
> : The 22.5kHz is a theoretical limit anyways. I wonder if there's any
> : human who can successfully ABX a piece of music that's brickwalled at
> : 18kHz. Technical details have little in common with human perception,
> Regardless of human hearing above 18kHz, harmonic overtones in that range
> can have interference effects on sound in the audible range.
When downsampling from, e.g. 96kHz down to 44.1kHz as the final step in
a master, all frequencies above 18-20 kHz should and will be filtered by
the sample editor before actually downsampling the sample. A lowpass
(and/or anti-aliasing filters, dunno what these do and whether that's
the same as lowpass or not) is what takes care of this.
"They who would give up an essential liberty for temporary security,
deserve neither liberty or security" - Benjamin Franklin
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