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Audio DSP with 10k+ AutoEQ profiles & Parametric EQ
Transform your Android's sound into a professional audio experience — and try most of it for free. The Perfect Sound is the most advanced system equalizer for Android. It doesn't just tweak bass and treble: it's a complete DSP (Digital Signal Processing) engine that intercepts and processes audio at the system level, so every music app, video service, game or call goes through it. Whether you listen with Bluetooth headphones, USB earphones, wired headsets or the phone's speaker, the app detects the connected device and applies the right profile. No manual setup: it adapts to you. FREE TO USE • Graphic EQ — 5, 15 or 31 bands, per-device profiles • Parametric EQ — the first ten filters, preamp, headroom and limiter • AutoEQ — the whole catalogue, and three profiles to keep • TPS — the audio engine with its seven profiles • The preference test, the Maximizer, backup and per-app exclusion FIVE AUDIO ENGINES, ONE APP 🔹 TPS — The Perfect Sound (free; manual chains with Premium) The heart of the app: 3-band Pre/Post EQ, 3-band multiband compressor, professional limiter, stereo virtualizer and loudness enhancer. Seven optimized profiles (Balanced, Bass Boost, Voice, Night, Movie, Music, Speaker); Premium lets you shape every chain yourself and keep up to 20 custom profiles. 🔹 AutoEQ (free; unlimited with Premium) More than 10,000 frequency-correction profiles for over 7,000 headphone models, built from the AutoEQ measurement database. Find your model and get a flat, balanced response in seconds, with automatic suggestions when a Bluetooth device connects. The free tier keeps three profiles; Premium keeps the whole library, imports and exports it, and creates profiles from your own measurements. 🔹 Parametric EQ (free; up to 60 filters with Premium) For audiophiles: 7 filter types (peaking, low shelf, high shelf, low pass, high pass, band pass and notch), advanced biquad maths and a real-time frequency response graph. The first ten filters are free, with the preamp, the automatic headroom and the limiter; Premium adds 50 genre presets and REW import/export. 🔹 Graphic EQ (free) 5, 15 or 31 bands, vertical sliders with haptic feedback, double-tap to reset, and a per-device profile library. 🔹 Maximizer (free) Up to +15 dB of perceived volume through the system's Loudness Enhancer. Ideal in noisy environments. SMART. AUTOMATIC. PERSONAL. ✓ Smart device detection — Bluetooth, USB, wired headphones and speakers, each with its profile. ✓ Smart mutual exclusion — one equalizer at a time (the Maximizer works alongside them). ✓ Full Google Drive backup — settings and custom profiles in one archive, restorable anywhere. ✓ Total theming — light, dark and AMOLED-black palettes, each with 15 color roles you can edit. ✓ Quick Settings Tile — switch the equalizer on or off from the quick panel. ✓ A/B comparison — hold the button to hear the correction come and go. ✓ Frequency visualizer — a live graph of the response being applied. ✓ 50 genre presets — Rock, Pop, Electronic, Hip Hop, Jazz, Classical, Metal and more. WHY IT IS DIFFERENT Where other equalizers offer 5 bands, The Perfect Sound uses Android's native DynamicsProcessing API with up to 128 bands, and a foreground service that keeps the processing alive in the background. REQUIREMENTS • Android 10 (API 29) or higher • Works with any audio/video app • Premium is a one-time purchase: no subscription PERMISSIONS (TRANSPARENCY) RECORD_AUDIO feeds the visualizer dock with the system audio stream. We never record or transmit audio: everything is processed locally on your device. Bluetooth access is needed for automatic headphone detection.