Elysia Tools
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Image, audio, and video processing, conversion, and optimization tools
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Developer utilities, networking, web debugging, and automation helpers
Format, file, archive, unit, and encoding conversion tools
Media
Design and render musical fade-ins and fade-outs: bar-based lengths at your BPM or lengths auto-derived from detected silence, fades placed against the real music span, logarithmic curves, optional silence trimming.
Three-band stereo imaging: mono the bass, keep the mids focused and widen the highs — exact mid/side matrices behind 4th-order Linkwitz-Riley crossovers, built from FFmpeg.
Blend the dry signal with a heavily compressed, makeup-gained copy — upward compression that lifts quiet detail while the dry path keeps its punch, built from FFmpeg.
Brighten dull vocals or masters with a high air shelf plus an exciter that synthesizes new top-end harmonics — the Aphex Aural Exciter architecture built from FFmpeg.
Run audio through a simulated tape machine: tanh magnetic soft clipping, speed-dependent head bump and HF rolloff, wow & flutter, and tape hiss — with 3.75/7.5/15/30 IPS presets.
Detect and dynamically attenuate harshness in the 2–5 kHz presence band — a dynamic-EQ-style cut that only bites when the band actually plays loud.
Detect and reduce 150–500 Hz low-mid buildup — the stacked-fundamentals mud that turns a mix boxy — with a measured, focus-tuned parametric cut.
Map world tunings — 7-limit just blues, Arabic maqamat (Rast/Bayati/Hijaz/Saba) on 24-EDO quarter tones, the 22-shruti table, gamelan slendro/pelog, 31-EDO, 53-EDO and the A440 harmonic grid — onto nearest-note + RPN fine tuning, MPE 14-bit bends at ±2/±24/±48/±96 semitones, MIDI 2.0 32-bit pitch bend, the MIDI 2.0 Pitch 7.9 note attribute, and a Scala .scl export.
Compare kick and bass timing/phase in the low band, report the offset and polarity, and export the corrected track with sample-accurate alignment.
Match your mix's tonal balance and loudness to a reference track and export the corrected master, with a before/after third-octave band report.
Simulate your mix on phone, laptop, earbud, car, club, mono and noisy-street playback, export every render in a ZIP, and report what survives each system.
Analyze an audio file, rank the most seamless loop points by cross-correlation, and export the best trimmed loop with a wrap-around crossfade.