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/nyanpasu64/videos.

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

Status

Corrscope is currently in semi-active development. The program basically works and I will fix bugs as they are discovered. Features will be added (and feature requests may be accepted) on a case-by-case basis. For technical support or feedback, 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

• Releases (recommended): https://github.com/corrscope/corrscope/releases
• Dev Builds: https://ci.appveyor.com/project/nyanpasu64/corrscope/history

On Windows, download Windows binary releases (.7z files), then double-click corrscope.exe or run corrscope (args) via CLI.

On other operating systems, download cross-platform Python packages (.whl or .tar.gz), then install Python 3.6+ and run pip install FILENAME.whl, then run corr (args).

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

Install Python 3.6 or above (3.5 will not work). Note that Python versions other than 3.8 and 3.9 are untested.

# 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 video (requires ffmpeg)

   • corrscope master.yaml -r/--render file.mp4 (other file extensions supported)

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