https://github.com/k2kobayashi/shifter

Pitch shifter using WSOLA and resampling implemented by Python3
https://github.com/k2kobayashi/shifter

signal-processing speech speech-processing voice-control voice-conversion

Last synced: about 1 month ago
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Pitch shifter using WSOLA and resampling implemented by Python3

• Host: GitHub
• URL: https://github.com/k2kobayashi/shifter
• Owner: k2kobayashi
• Created: 2017-04-27T03:56:56.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-07-19T15:18:55.000Z (over 7 years ago)
• Last Synced: 2024-12-02T14:49:35.643Z (about 1 month ago)
• Topics: signal-processing, speech, speech-processing, voice-control, voice-conversion
• Language: Python
• Homepage:
• Size: 662 KB
• Stars: 38
• Watchers: 1
• Forks: 8
• Open Issues: 3
• Metadata Files:
  • Readme: README.md

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README

        
NAME

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Shifter - a command line tool for F0 transformation of a waveform based on WSOLA and resampling

DESCRIPTION

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Shifter is a command line tool to transform F0 without using a vocoding framework.

The F0 transformation is implemented with WSOLA (Waveform Similarity-based Over-Lap Add) [1] and resampling.

-  [1] W. Verhelst and M. Roelands, “An overlap-add technique based on waveform similarity (WSOLA) for

  high quality time-scale modification of speech,” Proc. ICASSP, pp. 554–557 vol.2, Apr. 1993.

USAGE

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When the F0 transformation rate set to 2.0, please run a following command

    shifter -f0rate 2.0 in.wav out.wav

INSTALLATION

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### REQUIREMENTS

- Linux or MAC

  - Python v2.7.12

      - numpy

      - scipy

### MANUAL

Grab a copy of Shifter:

    git clone git://github.com/k2kobayashi/shifter.git

Install as a command line tool

    python setup.py install

KNOWN ISSUES

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- Reduce computational cost

- Describe descriptions in each class and function

REPORTING BUGS

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For any questions or issues please visit:

    https://github.com/k2kobayashi/shifter/issues

AUTHORS

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Shifter was originally written by Kazuhiro KOBAYASHI.

COPYRIGHT

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Copyright © 2017 Kazuhiro KOBAYASHI

Released under the MIT license

https://opensource.org/licenses/mit-license.php