andy
2004-07-09 15:00:24 UTC
Ricevo da Denis Sbragion e divulgo:
AES Preprint 6086
Blech, Dominic; Yang, Min-Chi
DVD-Audio versus SACD: Perceptual Discrimination of Digital Audio
Coding
Formats
To study perceptual discrimination between two digital audio coding
formats, ?Direct Stream Digital? and highresolution (24-bit, 176.4
kHz) PCM, subjective listening comparison tests were conducted with
specially recorded sound stimuli in stereo and surround. To guarantee
their reliability, validity and objectivity, the double-blind ABX
tests followed three main principles: The signal chain should be based
on identical audio components as far as possible; these components
should be able to convey very high audio frequencies; and the test
population should consist of various groups of subjects with different
listening expectations and perspectives. The results showed that
hardly any of the subjects could make a reproducible distinction
between the two encoding systems. Hence it may be concluded that no
significant differences are audible.
http://www.aes.org/publications/preprints/lists/116.cfm
Tutto il contenuto, ma in tedesco :-/, al seguente URL:
http://www.hfm-detmold.de/texts/de/hfm/eti/projekte/diplomarbeiten/2004/dsdpcm/xdslindex.htm
Sarebbe stato più interessante se avessero fatto il confronto con il
44/16 ;-)
AES Preprint 6086
Blech, Dominic; Yang, Min-Chi
DVD-Audio versus SACD: Perceptual Discrimination of Digital Audio
Coding
Formats
To study perceptual discrimination between two digital audio coding
formats, ?Direct Stream Digital? and highresolution (24-bit, 176.4
kHz) PCM, subjective listening comparison tests were conducted with
specially recorded sound stimuli in stereo and surround. To guarantee
their reliability, validity and objectivity, the double-blind ABX
tests followed three main principles: The signal chain should be based
on identical audio components as far as possible; these components
should be able to convey very high audio frequencies; and the test
population should consist of various groups of subjects with different
listening expectations and perspectives. The results showed that
hardly any of the subjects could make a reproducible distinction
between the two encoding systems. Hence it may be concluded that no
significant differences are audible.
http://www.aes.org/publications/preprints/lists/116.cfm
Tutto il contenuto, ma in tedesco :-/, al seguente URL:
http://www.hfm-detmold.de/texts/de/hfm/eti/projekte/diplomarbeiten/2004/dsdpcm/xdslindex.htm
Sarebbe stato più interessante se avessero fatto il confronto con il
44/16 ;-)