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- Newsgroups: comp.dsp
- Path: sparky!uunet!ftpbox!mothost!merlin.dev.cdx.mot.com!falstaff.dev.cdx.mot.com!sepehr
- From: sepehr@falstaff.dev.cdx.mot.com (Sepehr Mehranbanzad)
- Subject: Re: mu-law encoding - definition?
- Message-ID: <1992Aug29.212724.11761@merlin.dev.cdx.mot.com>
- Keywords: mu-law
- Sender: news@merlin.dev.cdx.mot.com (USENET News System)
- Nntp-Posting-Host: falstaff.dev.cdx.mot.com
- Organization: Motorola Codex, Canton, Massachusetts
- References: <1992Aug22.190716.2600@athena.mit.edu> <61087@aurs01.UUCP>
- Date: Sat, 29 Aug 1992 21:27:24 GMT
- Lines: 30
-
- 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.
-
- =======================================================================================
- 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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