Add unframe

[takenori-y]

No description provided.

[codecov]

Codecov Report

Merging #21 (cba67c2) into master (495f589) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master      #21   +/-   ##
=======================================
  Coverage   99.75%   99.76%           
=======================================
  Files         144      146    +2     
  Lines        3328     3385   +57     
=======================================
+ Hits         3320     3377   +57     
  Misses          8        8           

Flag	Coverage Δ
unittests	99.76% <100.00%> (+<0.01%)	⬆️

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Impacted Files	Coverage Δ
diffsptk/core/frame.py	100.00% <ø> (ø)
diffsptk/core/stft.py	100.00% <ø> (ø)
diffsptk/core/__init__.py	100.00% <100.00%> (ø)
diffsptk/core/root_pol.py	100.00% <100.00%> (ø)
diffsptk/core/unframe.py	100.00% <100.00%> (ø)
tests/test_unframe.py	100.00% <100.00%> (ø)

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