Jump to content

Talk:Adaptive Multi-Rate audio codec

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by 77.102.238.243 (talk) at 08:30, 4 October 2010 (→Conversion). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Conversion

Conversion from/to amr to mp3 wav etc...

Could we add a sub section on converting to and from .amr files preferably with a link(s) to external websites offering FREE, NON-VIRUS executables to do these conversions (I've failed to find one yet)

JamMan- 12th Oct 06

If you're looking for a free online amr converter, there's one here: http://www.convertfiles.com/ Probably not suitable to put in the main article though.

-Matt —Preceding unsigned comment added by 77.102.238.243 (talk) 08:28, 4 October 2010 (UTC)[reply]

License

Could we inform in the page about the licensing of AMR ? It looks very unclear to a lot of people (including me). (e.g. ffmpeg or videolan can't include the C code included in the amr reference specification made by 3gpp.) --- AlexandreDulaunoy 13:25, 1 February 2007 (UTC)[reply]


Time of Recording tagged?

Is there any chance the time a recording was made is embedded somewhere in the file itself?

Since that would mean recordings could be coordinated with a GPS track and geotagged... —Preceding unsigned comment added by MrRedwood (talk • contribs) 00:26, 14 October 2007 (UTC)[reply]

filtered to 200-3400 Hz?

Does anyone have a reference for this?

I was reading briefly in 3GPP TS 26.090 V7.0.0 (2007-06) (available at http://www.3gpp.org/ftp/Specs/html-info/26-series.htm) where it's stated in Section 5.1 that a high-pass filter with a cut-off frequency of 80 Hz is used. --Jonxon (talk) 22:59, 11 January 2008 (UTC)[reply]

Patent Issues

Are those software patents? It looks like it, but I know nothing, so if somebody could confirm this and make it clear it would be appreciated. 'Cause if I'm right, this article isn't giving a global view of the subject - as it's pretty much assuming that these patents are just as important as any other patents, whereas software patents aren't relevant in some countries. So making it clear would let people like me know. --PhiJ (talk) 14:50, 14 October 2008 (UTC)[reply]

Frame lengths?

Aren't the frame lengths just wrong for AMR-NB? —Preceding unsigned comment added by 192.16.134.69 (talk) 16:15, 22 January 2009 (UTC)[reply]

Retrieved from "https://en.wikipedia.org/w/index.php?title=Talk:Adaptive_Multi-Rate_audio_codec&oldid=388640696"