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Discussion Groups | Speech Coding | Windowing input signal

Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)

  

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Windowing input signal - rcal...@yahoo.com - Apr 12 7:25:58 2006



Hi,
  I want to window an audio signal using a Hamming window before I perform an autocorrelation
on it. What are the criteria for choosing a window length.
Also, what do I do if my sequence length can not be divided up evenly by the optimum window
length? i.e. do I pad the last block with zeros?

Thanks

R



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Re: Windowing input signal - catc...@rediffmail.com - May 18 8:37:12 2006

Never pad up with Zero, well if still your input sample is not the same as =
what the hamming window, then Always pad it up with 1, (Technically speakin=
g) This is not good for the Computation of energy (autocorelattion
coefficent.)

Regards
Ranjeet Gupta.
Hi,
>  I want to window an audio signal using a Hamming window before I perform=
 an autocorrelation on it. What are the criteria for choosing a window leng=
th.
>Also, what do I do if my sequence length can not be divided up evenly by t=
he optimum window length? i.e. do I pad the last block with zeros?
>
>Thanks
>
>R

=20

=20


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