SA3 - Sound Archeology - Analog Sound In A Digital World"
Brian Chapman
 

SA3 Technology is all about efficiency in converting analog information into digital.


Though there are many forms of this converting technology, SA3 is the only
one to address what is really needed to reproduce analog waves while in the
digital realm.

From a physics point of view this means that an analog wave
contains infinite points on a graph.  Thus the beginning and end of a wave
will always be approximated.  In the digital realm this is not the case and
thus infinity is never taken into consideration. Current sampling methods
approach this conversion by slicing up the analog sound wave as much as
possible thus more points on a graph.  This method works well when there are
billions of points on a graph. Obviously that does not come close to
infinity but it does provide a good representation of the original analog
wave.  The problem with this method is the size of the file that is needed
to display this information goes through the ceiling and thus you would need
1 DVD to hold one 4:00 song.  

SA3 addresses this problem by applying certain
mathematical formulas (highly intricate calculus and true logs) to the the
analog file thus taking into account infinity upon digital playback.  What
this means is every time you play an SA3 file via CD or CD Rom or Mp3 you
are hearing an approximation of the original sound source. Points on the
graph are approximated (infinity), thus like the true nature of analog.  In
fact, each time the file is played through the CD player or whatever
decoding device you are using, the playing back is  essentially different
each time. Of course the overall sound will be there but technically each
time it¹s played it¹s an elegant approximation of the analog sound.  This
can be best illustrated when using an oscilloscope on the the frequencies
coming out of a CD player.  

An SA3 file will play frequencies beyond the
accepted specs  of what a 16 bit sampled file is suppose to play.  Thus the
sound contains more dynamic range, depth, clarity than any other sampling
technique can produce. Unlike Sony¹s Super Audio (again slicing up the
analog wave)the SA3 file will sound great on any system.  No new hardware is
needed to enjoy the full fidelity SA3 is able to produce.  

This analog to digital conversion has been applied to the mp3 format (SA3mp3).The results
are a 10 to 15% smaller file than the smallest AAC or a standard stereo mp3
file. The Sa3 format is also compatible on any PC or Mac, mp3 player.
Again, no new hardware is needed. And the sound of an SA3mp3 is equal to or
surpasses the original CD it was extracted from depending on mhow much
re-mastering is involved.

SA3: Analog Sound In A Digital World.


 

 
 

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