[Speex-dev] Quality vs. Bitrate vs. Complexity

Randy Yates yates at ieee.org
Sat Apr 3 19:52:45 PDT 2010


Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> writes:

> Quality and bit-rate are different ways of specifying exactly the same 
> thing. Complexity is orthogonal.

That clears it up - thanks. Is this in the manual?

--Randy

>
> 	Jean-Marc
>
> On 2010-04-03 08:28, Randy Yates wrote:
>> Jean-Marc: I know you're seeing these - how about a response?
>>
>> --Randy
>>
>> Randy Yates<yates at ieee.org>  writes:
>>
>>> If I understand these terms correctly, you cannot specify simultaneously
>>> all three, e.g., high quality, low bitrate, and low complexity.
>>>
>>> It seems that specifying any two implies the third.  For example,
>>> specifying a high quality and low bitrate will necessarily require a
>>> high complexity.
>>>
>>> Am I correct? If not, can someone please explain how these parameters
>>> interact?
>>
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-- 
Randy Yates                      % "Remember the good old 1980's, when 
Digital Signal Labs              %  things were so uncomplicated?"
mailto://yates@ieee.org          % 'Ticket To The Moon' 
http://www.digitalsignallabs.com % *Time*, Electric Light Orchestra


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