Corrscope

Corrscope renders oscilloscope views of WAV files recorded from chiptune (game music from retro sound chips).

Corrscope uses "waveform correlation" to track complex waves (including SNES and Sega Genesis/FM synthesis) which jump around on other oscilloscope programs.

Sample results can be found on my Youtube channel at https://www.youtube.com/channel/UCIjb87rjJZxtNsHUdKXMsww/videos.

Dependencies

• FFmpeg

Installation

• Releases (recommended): https://github.com/nyanpasu64/corrscope/releases
• Dev Builds: https://ci.appveyor.com/project/nyanpasu64/ovgenpy/history
  • Download Windows binary releases (zip files), then double-click corrscope.exe or run corrscope (args) via CLI.
  • Download cross-platform Python packages (whl), then install Python 3.6+ and run pip install *.whl.

Running from Source Code (cross-platform)

Install Python 3.6 or above (3.5 will not work), and Poetry.

# Install Poetry (only do this once)
curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | python
# Install corrscope
cd path/to/corrscope
poetry install --develop corrscope
poetry run corr (args)

GUI Tutorial

1. Open GUI:
   • corrscope.exe to create new project
   • corrscope.exe file.yaml to open existing project
2. Add audio to play back
   • On the right side of the window, click "Browse" to pick a master audio file.
3. Add oscilloscope channels
   • On the right side of the window, click "Add" to add WAV files to be viewed.
4. Edit settings
   • Global settings on the left side of the window
   • Per-channel on the right side
5. Play or render to MP4/etc. video (requires ffmpeg)
   • Via toolbar or menu

Command-line Tutorial

1. Create YAML:

   • corrscope split*.wav --audio master.wav -w
   • Specify all channels on the command line.
   • -a or --audio specifies master audio track.
   • Creates file master.yaml.

2. Edit master.yaml to change settings.

3. Play (requires ffmpeg):

   • corrscope master.yaml -p/--play

4. Render and encode MP4 video (requires ffmpeg)

   • corrscope master.yaml -r/--render

Contributing

Issues, feature requests, and pull requests are accepted.

This project uses Black code formatting. Either pull request authors can reformat code before creating a PR, or maintainers can reformat code before merging.

You can install a Git pre-commit hook to apply Black formatting before each commit. Open a terminal/cmd in this repository and run:

pip install --user pre-commit
pre-commit install