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Talk:Pulse-code modulation

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This is an old revision of this page, as edited by Doorknob747 (talk | contribs) at 01:00, 29 March 2014 (a lot of sources I have found.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
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Missing context or corrupted paragraph

The paragraph that reads PCM in the late 1940s and early 1950s...a glitch-free Gray code...a fan beam instead of a scanning beam seems to be out of place or unexplained -- did we suddenly switch from audio to video? Also, the name "Goodall" is employed without being explained or introduced. — Preceding unsigned comment added by 84.227.250.195 (talk) 16:17, 23 March 2014 (UTC)[reply]

Nomenclature?

The word pulse in the term Pulse Width Modulation is somewhat confusing, as there appear to be no "pulses" per se anywhere to be found.

I believe this should read 'Pulse Code Modulation'. Please confirm. — Preceding unsigned comment added by Ktims (talk • contribs) 09:37, 21 June 2006‎ (UTC)[reply]

High Definition Media

From what I have read, many Blu-ray movies have PCM soundtracks. But HD DVD? I don't think ANY of my HD DVD movies have a PCM soundtrack. I am not sure "many" applies to HD DVD PCM soundtracks. — Preceding unsigned comment added by 75.71.201.149 (talk) 12:05, 25 October 2007‎ (UTC)[reply]

Todo

This was left as a HTML comment in the article. I don't know when or by whom. I am moving it here today. ~KvnG 00:50, 2 March 2014 (UTC)[reply]

To be written - topics to be covered:

32-bit

Doorknob747 apparently would like us to include information on 32-bit PCM. I'm reverting the restoration of Linear pulse-code modulation (which I had merged into this articl) but have added the material that the article was apparently revived for. I know there is 32-bit floating-point audio. I don't know that 32-bit PCM is a real thing and the reference supplied is not particularly reassuring. ~KvnG 18:44, 28 March 2014 (UTC)[reply]

The blog/discussion board reference is not good enough to state this as a fact. I see no 32-bit PCM in professional audio. Mac OS X uses to 32-bit floating-point linear PCM, but floating-point is not the same as 32 actual bits. Binksternet (talk) 19:34, 28 March 2014 (UTC)[reply]
look this up on internet PCM_S32BE. Also if u were to install wave surfer and use it to convert a audio sample there is a option to convert it to Lin32. Also, VLC media player reads Linear 32-bit audio.Doorknob747 00:42, 29 March 2014 (UTC)
Sources[1] [2] [3] [4] [5]
  1. ^ http://www.digitalpreservation.gov/formats/fdd/fdd000011.shtml. {{cite web}}: Missing or empty |title= (help)
  2. ^ http://forum.audacityteam.org/viewtopic.php?f=16&t=41581. {{cite web}}: Missing or empty |title= (help)
  3. ^ http://naudio.codeplex.com/workitem/16397. {{cite web}}: Missing or empty |title= (help)
  4. ^ http://odeon.dk/content/q-why-should-i-use-32-bit-ieee-float-format-when-it-takes-twice-much-space-ordinary-16-bit-p. {{cite web}}: Missing or empty |title= (help)
  5. ^ http://www.qnx.com/developers/docs/6.5.0_sp1/index.jsp?topic=%2Fcom.qnx.doc.neutrino_audio%2Flibs%2Fsnd_pcm_format_linear.html. {{cite web}}: Missing or empty |title= (help)
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