Python program to render wave files into oscilloscope views, featuring advanced correlation-based triggering algorithm
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README.md

Corrscope

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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/nyanpasu64/videos.

Documentation is available at https://corrscope.github.io/corrscope/.

Screenshot of Corrscope and video preview

Status

Corrscope is currently in maintenance mode until further notice. The program basically works, but I may not respond to issues. For technical support, contact me at Discord (https://discord.gg/CCJZCjc), or alternatively in the issue tracker (using the "Support/feedback" template). Pull requests may be accepted if they're clean.

Dependencies

  • FFmpeg

Installation

Instructions:

  • 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.

Installing from PyPI via Pip (cross-platform, releases)

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

# Installs into per-user Python environment.
pip3 install --user corrscope
corr (args)

Running from Source Code (cross-platform, dev master)

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

# Installs into an isolated environment.
# Install Poetry (only do this once)
curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | python
cd path/to/corrscope
poetry install corrscope  # --develop is implied
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