Re: [codec] #1: Point to point calls supporting transcoding? (was: Application: 2.1. Point to point calls supporting transcoding?)

"codec issue tracker" <trac@tools.ietf.org> Sat, 10 April 2010 05:44 UTC

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Subject: Re: [codec] #1: Point to point calls supporting transcoding? (was: Application: 2.1. Point to point calls supporting transcoding?)
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#1: Point to point calls supporting transcoding?
------------------------------------+---------------------------------------
 Reporter:  hoene@…                 |        Owner:        
     Type:  enhancement             |       Status:  closed
 Priority:  major                   |    Milestone:        
Component:  requirements            |      Version:        
 Severity:  Active WG Document      |   Resolution:  fixed 
 Keywords:                          |  
------------------------------------+---------------------------------------
Changes (by hoene@…):

  * status:  new => closed
  * resolution:  => fixed


Comment:

 Any testing of tandem coding can only be about the audio quality.
 There is no binary question about whether "it works" or not, because any
 two codecs do indeed work together when connected through audio.

 I don't see a need to add tandem testing to the requirements.  Quality
 will be high when operating towards the high end of the range in bitrates
 mentioned in the requirements, and tandem quality will be limited by the
 other codec. For lower bitrates the quality naturally goes down.. not sure
 what to test?

 koen.

 Problem solved: If tandem coding is a quality problem, just add bandwidth
 on the side of the Internet codec. CH

-- 
Ticket URL: <http://trac.tools.ietf.org/wg/codec/trac/ticket/1#comment:2>
codec <http://tools.ietf.org/codec/>