Hi,

I am looking for MELP test vectors to verify my implementation. Can
someone point me in the right direction?

I expected they would be easy to find - considering the DDVPC have 3
publically available MELP implementations - but I can not find test
vectors anywhere.

Regards,
Nick

Probably the best reference for MELP and MELPe is Compandent Inc., which 
is the only company that participated in the MELPe's R&D and is still 
actively working on it, supporting it, and its implementation.
See:
http://www.MELPe.com

VNG


n...@gmail.com wrote:
> Hi,
> 
> I am looking for MELP test vectors to verify my implementation. Can
> someone point me in the right direction?
> 
> I expected they would be easy to find - considering the DDVPC have 3
> publically available MELP implementations - but I can not find test
> vectors anywhere.
> 
> Regards,
> Nick
> 

Other companies working on MELPe include:

  -Harris
  -Thales Group
  -Signalogic

Work by these companies includes algorithm level.

Another source for MELP/MELPe test vectors:

  http://www.signalogic.com/codec_samples.htm

Jeff Brower
Signalogic

PS.  Although he did not say, VNG is Oded Gottesman, alias Compandent,
Inc.

The crystal clear fact is that Compandent is the only company that 
worked on MELPe, contributed to its standard in terms of source code & 
Test Vectors, and still provides professional and reliable MELPe related 
solutions.  Compandent are the same speech coding experts that 
contributed to the actual MELPe standard.  Compandent in fact originated 
the reference "certified" Test Vectors, and therefore out of the other 
options mentioned, it is probably the best source for the requested 
"certified" Test Vectors.

See for yourself the very helpful MELPe / MELP FAQ:
http://www.compandent.com/melpe_faq.htm

The other companies may have merely done some "uncertified" internal 
programming work related to MELPe, but have NOT contributed to its 
standard reference or to its "certified" Test Vectors.  Their work 
probably relied upon Compandent's work, and is likely to even include 
some of it.   But they may have deviated from it, and who knows by how 
much...  Some of those companies out there who have done some internal 
programming work don't even have any real speech coding expert...  It is 
somewhat similar to the difference between having an opinion of a 
beginner nurse as compared to experienced doctor's, a doctor who even 
participated in a scientific research of the medical condition...