SpectroFlac

Android app that analyzes FLAC files to verify whether they’re truly lossless. Detects lossy transcodes, fake hi-res, padded bit depth, corruption, and clipping through spectral analysis, integrity checks, and detailed audio measurements.

✨ Features 🔬 Full-spectrum analysis 🎵 Lossy transcode detection 📈 Fake hi-res detection 🧬 Bit-depth analysis 🔐 FLAC MD5 verification 🧮 Frame CRC-16 verification 📊 RMS / peak / crest factor 📉 Clipping detection 🎚️ TT-style DR estimation 🧾 Encoder fingerprints (MP3 CBR/VBR, AAC, Vorbis, Opus) 🔎 Interactive spectrogram — pinch-zoom, pan, frequency/time cursor 🎛️ Per-channel spectrum (left, right, mid, side) 🎧 Stereo analysis — correlation, balance, width, phase problems 🧩 Joint-stereo artifact detection 🏷️ Metadata and tags 🖼️ Embedded cover art 📁 Recursive folder scanning 🧵 Parallel analysis — several files at once (Auto, or 1–8), with heat and battery protection 📋 Scan queue — per-file and overall progress, time left, pause / cancel / retry / reorder 🔔 Background scans with a progress notification ⚙️ Settings — performance, queue, history, auto-export, appearance 📤 CSV / JSON export 🕘 Local analysis history 📱 Android share-sheet integration 🪟 Liquid glass UI 🔒 100% offline 🚫 No network access 🚫 No dangerous permissions — only a notification for background scans

License

PolyForm Noncommercial License 1.0.0