Acoustic Engineering Precision Suite
TONEMORPH EQ PARAMETRIC EQUALIZER
Master Every Frequency. Experience Studio-Quality Sound on Android.
A high-performance 32-bit floating-point native DSP parametric equalizer and audio pipeline inspector for Android. 100% Free, Zero Paywalls, and Completely Offline.
Dual-Tier Interactive Console
Seamlessly toggle between tactile analog-modeled macro dials and surgical 10-zone biquad spline arrays with zero audio dropouts.
Bass Punch
Vocal Clarity
Air Treble
7 Key Value Propositions
Engineered from the ground up in C++20 with specialized SIMD vectorization to execute zero-latency filtering directly within the Android audio kernel.
System-Wide Audio Effect
Zero root required. Hooks system-wide audio across all media apps with seamless low-latency Android audio framework integration.
6,033 Headphone Calibration Profiles
Extensive AutoEQ database integration tuned directly to the Harman Target reference curves with one-tap hardware compensation. Instant fuzzy search across Sony, Apple, Sennheiser, Bose, and Samsung models.
Zero-Loss Preset Management
Organize custom tuning curves, AutoEQ models, and import/export EqualizerAPO profiles. Switch between macro dials and parametric spline nodes with 1:1 bidirectional node and slider retention.
Intelligent Auto Pre-Amp Protection
Dynamic headroom monitoring continuously watches cumulative positive filter gains, automatically clamping headroom up to a -6.0 dB safety cap.
Audio Devices & DAC Stream Inspector
Real-time hardware pipeline monitoring exposing active output routing, HAL stream sample rates, audio bit depth, and AAudio low-latency status. Auto-bind unique EQ presets per physical hardware output (Internal Phone Speaker, Bluetooth Earphones, or USB-C external DACs).
100% Free and Private
No subscription tiers, no feature lockouts, zero paywalls, zero telemetry pings, and completely operable offline without an internet connection.
Laboratory Technical Specifications
Validated against Rhode & Schwarz and Audio Precision APx555 hardware analyzers under continuous 96kHz stress loads.
| Metric Category | Certified Performance Value | Standard Compliance |
|---|---|---|
| Operating System | Android 9.0+ (API 28 through Android 16 / API 36) | Universal Support |
| Page Alignment | 16KB memory page size compatible | Android 16 Certified |
| Native Audio Engine | C++20 via Google Oboe (AAudio Direct Path) | AAudio MMAP Ready |
| System Routing | Android DynamicsProcessing, Equalizer, System Visualizer(0) | Session 0 Global |
| Internal Precision | 32-Bit IEEE 754 Floating Point (>150 dB Dynamic Range) | IEEE-754 Compliant |
| Frequency Range | 20 Hz – 20,000 Hz (Full Human Audible Range) | Hi-Res Audio Certified |
| Gain Range | -12.0 dB to +12.0 dB (0.1 dB resolution) | ±0.05 dB Linear |
| Q-Factor Range | 0.10 to 10.00 (Default: 1.10) | Parametric Bi-Quad |
| Filter Topologies | Peaking, Low-Shelf, High-Shelf, High-Pass, Low-Pass, Notch, Band-Pass | 7 Topology Suite |
| Limiter Delay | 72 Samples linked lookahead brickwall (~1.5 ms @ 48 kHz) | Sub-2ms Zero-Clip |
| Spectrum Analyzer | 64-Band Logarithmic FFT (Fast Attack 0.65, Natural Decay 0.82) | 60 FPS Hardware Render |
| AutoEQ Catalog | 6,033 Headphone & Earphone laboratory profiles | Laboratory Verified |
| Codec Compatibility | EqualizerAPO (.txt), Wavelet GraphicEQ (.csv/.txt), Tonemorph JSON | Universal Interchange |
| Memory Footprint | < 40 MB RSS, zero allocations on audio callback (Zero GC) | Zero GC Pressure |
Frequently Asked Questions
Detailed insights regarding framework architecture, operating system integration, power metrics, and licensing.
Does Tonemorph EQ require root access?
No. Tonemorph EQ interfaces directly with standard Android audio framework APIs (DynamicsProcessing, Equalizer, and AAudio). It works out of the box on any stock Android device.
Will this impact battery life during playback?
Battery consumption is negligible. The core DSP engine runs compiled C++20 native code with zero heap allocation in the audio loop. The UI visualizer automatically pauses when the device screen turns off or the app is backgrounded.
Are any features locked behind a subscription or paywall?
No. Tonemorph EQ is 100% free with completely unrestricted access to all features, including Pro Mode, 6,000+ AutoEQ profiles, EqualizerAPO codecs, and the Audio Pipeline Inspector.
Install Tonemorph EQ from Google Play
Experience bit-perfect acoustic precision directly on your device. Includes native Android audio effects bridge, AutoEQ 6,000+ preset bundle, and offline impulse response convolution engine.