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performance updates

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Mark Gregory
2026-11-06 07:44:08 +00:00
parent d71c823ee6
commit 9e610bd6f2
6 changed files with 182 additions and 144 deletions
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README.md
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@@ -95,7 +95,7 @@ Import MP3/WAV/M4A, same-basename CDG pairs, MP3+G ZIPs or MP4/M4V/MOV with macO
Library Locations recursively scans mounted drives/folders, indexes supported media and prepares cached 4096-bin RMS/frequency waveforms in the background. Cancel keeps completed work. Rescan reuses unchanged entries/caches; Rebuild Waveforms forces analysis. Offline sources retain their catalogue; removing a location keeps songs/media. Reconnect the drive to play referenced files. Results refresh at completion; there is no filesystem watcher/scheduled rescan.
Waveforms use source bass/mid/treble energy for RGB colours. Hover for exact time, click/drag to scrub, and zoom 1×–32× for precision. Re-analyse is in the waveform menu. Cache keys use source path, size, modification time and analyser version; bad/changed caches rebuild. Background analysis has its own reader and cannot replace a newer track's result.
Karaoke and DJ Studio share the same spectrum colours from source bass/mid/treble energy, red playhead, smooth audio-clock scrolling and green loop markers. The track overview selects an absolute position; hold the left mouse button in the scrolling spectrum and drag left to advance or right to rewind without a click jump. Hover for exact time and zoom 1×–32× for precision. Karaoke estimates BPM in the background for beat lines and numbered four-beat guides; these start at source time zero and are not analysed downbeats. Re-analyse is in the waveform menu. Cache keys use source path, size, modification time and analyser version; bad/changed caches rebuild. Background analysis has its own reader and cannot replace a newer track's result.
The sidebar monitor stays fixed while navigation scrolls. It and the separate Video window share one published CDG/video/slide frame. Local MP4 video is muted and follows the processed audio clock with drift correction; its sound uses the global mixer and independent pitch/tempo engine. The app has one main UI window and optional Video output, with no New Window command. There is no YouTube support.