Media
Store PNG pixels as true 16-bit-per-channel grayscale, 48-bit RGB, or 64-bit RGBA PNG.
png-to-16bit-pngMedia
Edit subtitle timing, shift cues, repair overlaps, calibrate CPS, wrap long lines, and export SRT, VTT, ASS, or TTML.
srt-vtt-subtitle-editorMedia
Clean lecture recordings with speech-focused EQ, hum reduction, peak control, and optional long-silence trimming.
audio-classroom-recording-cleanerMedia
Turn speech phrases into a repeatable practice track with a configurable pause between repetitions.
audio-language-learning-loop-makerMedia
Level a mixed meeting recording, reduce low rumble and keyboard-like clicks, and produce a meeting-ready audio file.
audio-meeting-recording-normalizerMedia
Clarify listening audio with low-frequency cleanup, speech-presence EQ, conservative denoising, and level protection.
audio-assistive-listening-enhancerMedia
Mix an audio-description narration into program audio while ducking the program when narration is present.
audio-audio-description-duckingMedia
Shift SRT or WebVTT captions to a likely speech onset or by a manual offset.
audio-caption-timing-shifterMedia
Compare SRT or WebVTT cue timing with likely speech activity and flag timing drift.
audio-caption-sync-checkerMedia
Find likely simultaneous speech-like activity by detecting multiple balanced voice-frequency bands.
audio-overlap-speech-detectorMedia
Split a long sermon or lecture at reliable silences and optional timestamped topic, applause, or music hints.
audio-sermon-lecture-splitterMedia
Validate an audiobook chapter or full file against ACX/Audible submission requirements: RMS, peak, noise floor, duration, format, and chapters.
audio-audiobook-acx-validator