Jump to content

Talk:Continuously variable slope delta modulation

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by Pfagerburg~enwiki (talk | contribs) at 02:36, 9 September 2008 (respond to 'lossy codec'). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

I removed the statement that "CVSD" is a 'lossy codec'. It is not really a codec, it's a modulation scheme so the term doesn't apply here. You can't say that an analog to digital step is a 'lossy codec', though it is correct that going from the analog to digital domain does introduce noise.

Call it a coder instead of a codec, then? I called it lossy because if you take uncompressed PCM data, run it through a CVSD coder, and then run that through a CVSD decoder, the PCM output you get does not match the original input. This is in contrast to FLAC, Apple Lossless, or even LZW compression, etc. where the uncompressed output is always bit-for-bit equal to the original input.
CVSD coding introduces more noise than a simple analog to digital conversion, or even some companding schemes like mu-law and A-law. Calling it a "lossy codec" seemed to be the least verbose way to indicate that CVSD will not store an exact representation of the input signal. Pfagerburg (talk) 02:36, 9 September 2008 (UTC)[reply]

ADM and CVSDM

What is the relation between them? --Čikić Dragan (talk) 16:36, 7 February 2008 (UTC)[reply]

Retrieved from "https://en.wikipedia.org/w/index.php?title=Talk:Continuously_variable_slope_delta_modulation&oldid=237198651"