🚀 go-pugleaf

In article <1992Aug22.190716.2600@athena.mit.edu> parasite@athena.mit.edu (Vince) writes:

>I have a set of data which is mu-compressed from
>12 bits to 8 bits.  I need to maniulate it in
>its 12-bit form and I'm not sure what the
>conversion process between the two is.  All of
>the books I've looked in for an explanation have
>a few graphs displaying the wonderful properties
>of mu-encoding but no direct explanation of how to
>go from one to another.
>
>Does anyone out there know the definitions of the 
>encoding algorithm and wish to tell me what it is?
>If it makes a difference, this data was taken off 
>of the audio port of a Sun Sparcstation (/dev/audio).
>


You can find a very good descriptioin of the comparsion alogrithm and how to implement
the encoder/decoder in the "TI Digital Signal Processing Applications with the TMS320
Family" pages 169 to 198.  This approach has the advantage of not requiring to do any
table look up.

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Sepehr Mehrabanzad
Signal Processing Research Group		v-mail:(617) 821-7523
Motorola/Codex					e-mail:sepehr@falstaff.dev.cdx.mot.com
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