diff --git a/sources/tech/20160620 Part II - How to make basic Mathematical Signal Processing in Audio files using Ubuntu with Octave 4.0.md b/sources/tech/20160620 Part II - How to make basic Mathematical Signal Processing in Audio files using Ubuntu with Octave 4.0.md
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+translating by ucasFL
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 # Scientific Audio Processing, Part II - How to make basic Mathematical Signal Processing in Audio files using Ubuntu with Octave 4.0