Audio Refiner

DS soft

Contains ads

About this app

Your favorite performance, a field recording, or a home-studio demo. "The performance is perfect, but the sound quality is lacking." To all audiophiles and creators who have felt this—AudioRefiner is built for you.

[ July 2026 Update ]
・Real-Time Audio Processing:
Hear every supported effect instantly as your audio plays. Fine-tune your sound with immediate feedback—no repeated exporting required.

・Smart Keyword-Based Effect Matching:
No complex DSP knowledge required! Type in your audio problem (e.g., "muffled", "lacks bass", "clear", "boomy") and AudioRefiner instantly applies the ideal DSP combination.


[ Common Audio Problems AudioRefiner Solves ]

● "The voice sounds muffled or lacks clarity."
Restores lost high-end detail and harmonics, making voices sound crisp, warm, and clear without harsh EQ.

● "The bass disappears on my phone speakers."
Uses psychoacoustic synthesis to make low-end frequencies audible on small transducers without distortion.

● "Old CD tracks sound quiet, thin, or weak."
Our look-ahead maximizer boosts signal energy and LUFS levels while preserving audio integrity.

● "Instruments are clumping together in the center."
Spectral enhancement technology expands the stereo field to give every instrument its own space.


---

[ Technical DSP Specifications ]

AudioRefiner is a high-precision Digital Signal Processing (DSP) utility designed to optimize audio with objective accuracy.

● Smart Keyword Preset Recommendation
An instant, offline matching engine that maps your description directly to specialized DSP parameter chains—eliminating trial-and-error without network latency.

● Harmonic Excitation & Saturation
Utilizes high-pass filtering and polynomial soft-clipping algorithms to synthesize high-frequency harmonics, adding warmth and clarity without phase distortion.

● Psychoacoustic Bass Enhancement
Implements "Missing Fundamental" theory to generate sub-harmonic series, allowing low frequencies to be perceived on limited-range transducers.

● Look-Ahead Peak Limiting (Maximizer)
A 5ms look-ahead limiter with adjustable input gain and ceiling parameters, featuring an intelligent release curve to boost signal density while preventing clipping.

● Instrument Separation & Spectral Unmasking
Employs WOLA synthesis and spectral contrast enhancement above 600Hz, reducing masking and refining instrument definition.

● Complete Manual Control
Describe what you hear in plain words, or take full manual control using precision sliders:
- Drive and Mix levels for Harmonic Exciters & Saturation
- Input Gain and Ceiling for Limiters
- Pitch, Tempo, and Formant shift ratios
- Spectral separation and contrast intensity
- Cutoff frequencies for Low-Cut/High-Pass filters


---

[ Professional Use Cases ]

・Music Production: Remaster demos or enhance raw instrument tracks with DAW-level DSP.
・Audio Restoration: Digitize old tapes or vinyl, removing hiss and restoring high-end detail.
・Content Creation: Optimize voiceovers and podcasts for consistent loudness (LUFS) and clarity.
・Field Recording: Clear up environmental noise and focus the stereo image of outdoor captures.


---

[ Core Features ]

・Keyword-driven Auto-Preset Recommendation
・Harmonic Exciter & Drive Saturation
・Sub-Bass Restoration & Virtual Bass
・Look-Ahead Maximizer & Peak Limiter (LUFS optimization)
・Spectral Noise & Pop Removal
・Stereo Imaging Expansion
・De-Esser (Harshness reduction)
・Time-Stretch & Pitch-Shift

AudioRefiner delivers studio-standard DSP in a streamlined mobile interface. Whether you need automated signal balancing via smart keyword search or granular manual control, AudioRefiner gives you full command over your audio.

What’s new

Revamped the AI ​​refinement function.
Supports real-time processing. If the audio stutters during playback, please enable the "Check if audio stutters (Increase buffer)" option.
*Note: As a result, the waveform view has been removed.
Improved virtual bass effect quality.
Enhanced stability (prevents crashes with mono audio sources)
Added a detailed settings screen. All parameters can now be set and saved.
Improved AI refinement quality.
possible to save/export as WAV format.