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2010-09-01
, 09:41
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Posts: 278 |
Thanked: 303 times |
Joined on Feb 2010
@ Norwich, UK
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#2
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1) The N900 is not, and never has been, Nokia's "flagship".
2) The N900 does have an AMR-WB encoder and decoder installed. Whether this specifically includes G.722.2 for GSM however, i'd have no idea.
2) The N900 does have an AMR-WB encoder and decoder installed. Whether this specifically includes G.722.2 for GSM however, i'd have no idea.
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2010-09-01
, 09:56
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Posts: 68 |
Thanked: 27 times |
Joined on Aug 2010
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#3
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I'm guessing its installed but like all other features we have to wait for this forums geniuses to enable it for us. that is if it works. lucky uk. since for me in usa i use tmobile and now and then is it gets so bad that i don't hear anything(but still better then att). but its not the N900 fault i guess...
No hatin...
No hatin...
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2010-09-01
, 10:05
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Posts: 196 |
Thanked: 47 times |
Joined on Mar 2010
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#4
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Even if it isn't implemented in the DSP (which I have no idea to the answer), the N900 cpu is plenty fast enough to soft decode / encode to this codec.
So, what we're missing is a client that talks to Orange HD surely...
So, what we're missing is a client that talks to Orange HD surely...
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2010-09-01
, 11:48
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Posts: 1,258 |
Thanked: 672 times |
Joined on Mar 2009
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#5
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I thought every other civilized operator had this enabled already...
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2010-09-01
, 14:43
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Posts: 3,401 |
Thanked: 1,255 times |
Joined on Nov 2005
@ London, UK
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#6
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Originally Posted by nidO
So if the N900 isn't Nokias current flagship phone, what is - the N97? Sorry, the N900 is the current "top of the line" Nokia device until the N8 launches, and even that has inferior hardware in all respects apart from the camera.
1) The N900 is not, and never has been, Nokia's "flagship".
A better demonstration of the HD Voice difference here (should be available to everyone, not just UK):
(Related news article here from when Orange were performing a limited trial of HD Voice about 2 months ago).
Last edited by Milhouse; 2010-09-01 at 14:46.
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2010-09-01
, 16:15
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Posts: 2,802 |
Thanked: 4,491 times |
Joined on Nov 2007
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#7
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Originally Posted by Milhouse
IMHO it's a bit of a marketing gimmick at this stage. I played with it some months ago with Snom equipment and it sounds great when it's supported end-to-end, but most of the rest of the world can only support 8KHz 8-bit PCM at best.
Speech quality using the "HD Voice" (aka AMR-WB / G.722.2 codec) is much improved
The question is: does the N900 support the AMR-WB codec?
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2010-09-01
, 17:53
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Posts: 3,401 |
Thanked: 1,255 times |
Joined on Nov 2005
@ London, UK
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#8
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Originally Posted by lma
I guess they have to start somewhere and to be fair they have been pretty upfront about it only working between HD-enabled handsets. Although I'm still not sure why it won't work between an HD-enabled handset and a POTS landline - presumably this is a cellular network limitation when interfacing with POTS?
IMHO it's a bit of a marketing gimmick at this stage. I played with it some months ago with Snom equipment and it sounds great when it's supported end-to-end, but most of the rest of the world can only support 8KHz 8-bit PCM at best.
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2010-09-04
, 05:08
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Posts: 2,802 |
Thanked: 4,491 times |
Joined on Nov 2007
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#9
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Originally Posted by Milhouse
Sure, that was a general comment on HD audio rather than this particular offering.
I guess they have to start somewhere and to be fair they have been pretty upfront about it only working between HD-enabled handsets.
Although I'm still not sure why it won't work between an HD-enabled handset and a POTS landline - presumably this is a cellular network limitation when interfacing with POTS?
BTW, it seems even the N8x0s came with some AMR-WB support:
Code:
Nokia-N810-43-7:/lib/dsp/modules# ls -l amrw* -rw-r--r-- 1 root root 751 Aug 22 2008 amrwb.cmd -rw-r--r-- 1 root root 13089 Aug 22 2008 amrwb.o
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2010-09-04
, 08:44
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Posts: 1,258 |
Thanked: 672 times |
Joined on Mar 2009
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#10
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amr is often used in .mp4/.3gp/.3gp2 files
The question is: does the N900 support the AMR-WB codec?
My web searches so far seem to suggest that the N900 does not support this voice codec, which is a great shame particularly as AMR-WB has been around at least 10 years (possibly longer, since 1998).
The latest Android phones (Moto Droid etc.) and forthcoming Nokia N8 seem to have support for AMR-WB, but not Nokias current flagship.