Corrscope

This mostly has improvements to pitch tracking.

Features

- Rewrite pitch tracking to avoid false negatives (274)
- Previously, we rescaled the *buffer* to maximize spectral similarity between *data 2 frames ago* and data now.
- Now we rescale the buffer to maximize spectral similarity between the buffer and data now.
- Improve period calculation, add maximum frequency cap (294)
- Fixes incorrectly high frequency with low bass notes
- Fixes incorrectly high frequency with treble-heavy waveforms

Major Changes

- Update default options for new projects (275)
- Stereo grid opacity = 0.25
- Render FPS Divisor = 2 (preview-only, faster)
- Trigger Width = 60 ms
- Always enable midline color, remove color checkbox (291)
- Can be disabled separately for h/v
- Enable grid color 55aaff for new projects (300)

Changelog

- Increase GUI maximum Trigger/Render Width to 200 ms
- Update trigger GUI, merge all edge-related triggers (299)
- Rewrite FPS printing code
- Add test to ensure cancelling render terminates FFmpeg quickly
- Add support for excluding fields from always_dump="*" (268)
- Don't dump viewport_width/height by default

This is a bugfix release, since master has regressions in pitch tracking.

Changelog

- Improve GUI dialog path defaults (277)
- Display all GUI errors in dialog box, instead of crashing (279)
- Display dialog and terminate ffmpeg, when closing project with preview/render active (280)

Breaking Changes

- Reorganize GUI, move trigger options to tab
- Improve NES triangle triggering, switch data window to Gaussian (244)
- Remove mean responsiveness (always set to 1)
- To improve triangle waves, use sign triggering instead.

Features

- Add sign triggering (37d2c08a)
- Add support for per-channel labels (256)
- Some fonts may not work or display the wrong weight, due to Matplotlib issues.
- Add configurable grid line width (265)
- Add Ctrl+Tab or Ctrl+PageUp/Down shortcuts to switch GUI tabs (246)

Changelog

- Quit GUI when pressing Ctrl-C in terminal (252)
- Rewrite resolution division system to use internal DPI (264)
- Refactor renderer API (c8239558)
- Add renderer debugging visualizations (development only)

Breaking Changes

- Set default mean responsiveness to 0.05 instead of 1 (even in unmodified older files, oops)
- Always use full-resolution rendering, when rendering to file (make trigger/render subsampling preview-only)
- Remove buffer falloff from GUI (defaults to 0.5)
- Lag prevention is no longer increased, when trigger subsampling or trigger width × are >1

Features

- Add Help menu (online help manual)
- Add custom stereo downmix modes
- Allow left-only triggering, downmixing specific channels to mono, etc.
- Add post-triggering for finding zero-crossing edges
- Add optional slope-based triggering
- Previous edge-triggering was area-based and located zero crossings

Changelog

- Add trigger "buffer responsiveness" option
- Remove dependency on more_itertools

This was released early, to fix a time-traveling bug introduced in 0.3.0.

Breaking Changes
- Fix time-traveling bug by reverting "Increase trigger diameter to improve bass stability" from 0.3.0 (221)

Changelog

- Rebuild UI in Python, not .ui XML
- Show stack trace dialog when loading config fails
- Show stack trace dialog if exceptions raised before playback begins

Breaking Changes

- Increase trigger diameter to improve bass stability
- **BUG:** I accidentally made bass frequently travel backwards in time. 221
- Line width is now measured in pixels. (previously, 1 pt = 4/3 px)
- Tweak default config settings: white lines, gray midlines, 1 column, vertical orientation.
- Enable preview-only resolution divisor by default, to boost speed

Features

- Add pitch-tracking trigger checkbox
- Waves should no longer jump around when pitch changes.
- Rapidly repeating pitch changes (less than 6 frames apart) are skipped for performance.
- Pitch tracking may increase CPU usage on noise channels. See https://github.com/jimbo1qaz/corrscope/issues/213 for details
- Add stereo rendering support
- Located in stereo tab in GUI
- Add per-channel amplification support
- Add color picker to GUI
- Add unit suffixes to GUI spinboxes

Changelog

- Prevent YAML dump from line-breaking long paths
- Dump Config.show_internals to YAML by default
- Add non-GUI option to disable antialiasing (does not improve performance)