versions with sptk

[shellbye]

In sptk, the help msg show like before,

freqt -h

 freqt - frequency transformation

  usage:
       freqt [ options ] [ infile ] > stdout
  options:
       -m m  : order of minimum phase sequence      [25]
       -M M  : order of warped sequence             [25]
       -a a  : all-pass constant of input sequence  [0]
       -A A  : all-pass constant of output sequence [0.35]
       -h    : print this message
  infile:
       minimum phase sequence (float)               [stdin]
  stdout:
       warped sequence (float)

 SPTK: version 3.11
 CVS Info: $Id$

But in pysptk, there is only two parameter(order=25, alpha=0.0), I wonder what's the difference, is it because of the version?

I'm really green hand, i'm sorry for the silly question if it is.

[shellbye]

I asked someone else, turn out that python does not need some param since numpy has them.

[Ryuichi Yamamoto]

Yes, I wanted to simplify API as possible. One more important difference is that alpha should be specified as a relative value, as oppose to the SPTK CLI. For example,

• SPTK: a=0, A=0.35, Python: alpha=0.35
• SPTK: a=0.35, A=0, Python: alpha=-0.35

I hope this helps you understand.

[shellbye]

I haven't noticed the difference of alpha, thank you for your notice.