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effetune

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A real-time audio effect processor designed for audio enthusiasts to enhance their music listening experience.

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# Frieve EffeTune <img src="images/icon_64x64.png" alt="EffeTune Icon" width="30" height="30" align="bottom">

[[中文 (简体)](docs/i18n/zh/README.md)] [[Español](docs/i18n/es/README.md)] [[हिन्दी](docs/i18n/hi/README.md)] [[العربية](docs/i18n/ar/README.md)] [[Português](docs/i18n/pt/README.md)] [[Русский](docs/i18n/ru/README.md)] [[日本語](docs/i18n/ja/README.md)] [[한국어](docs/i18n/ko/README.md)] [[Français](docs/i18n/fr/README.md)]

<div class="doc-primary-actions" aria-label="Primary actions">
  <a class="button button-primary" href="https://effetune.frieve.com/effetune.html">Open Web App</a>
  <install class="button button-secondary"><a href="https://effetune.frieve.com/effetune.html">Install PWA version</a></install>
  <a class="button button-secondary" href="https://github.com/Frieve-A/effetune/releases/">Download Desktop App</a>
  <a class="button button-secondary" href="https://github.com/Frieve-A/effetune-mixwright/releases">Download VST Version</a>
  <a class="button button-secondary" href="dsp/">DSP Library</a>
</div>

A real-time audio effect processor designed for audio enthusiasts to enhance their music listening experience. EffeTune allows you to process any audio source through various high-quality effects, enabling you to customize and perfect your listening experience in real-time.

[![Screenshot](https://raw.githubusercontent.com/Frieve-A/effetune/main/images/screenshot.png)](https://effetune.frieve.com/effetune.html)

## Introduction video

[![YouTube Video](https://raw.githubusercontent.com/Frieve-A/effetune/main/images/video_thumbnail.jpg)](https://www.youtube.com/watch?v=--mtsy1t4HI)

## Concept

EffeTune was created for audio enthusiasts who want to elevate their music listening experience. Whether you're streaming music or playing from physical media, EffeTune lets you add high-quality effects to customize the sound to your exact preferences. Transform your computer into a powerful audio effects processor that sits between your audio source and your speakers or amplifier.

No audiophile myths, Just pure science.

## Features

- Real-time audio processing
- Drag-and-drop interface for building effect chains
- Expandable effect system with categorized effects
- Live audio visualization
- Audio pipeline that can be modified in real-time
- Offline audio file processing with current effect chain
- Music Library for browsing local subfolders, metadata, and playlists
- Compact, always-on-top mini player for the desktop app
- Frequency response measurement and correction for system calibration
- Multi-channel processing and output
- Mobile-friendly web layout for phone and tablet use
- Web app settings and audio configuration saved in the browser
- Installable web app with offline app-shell support
- Power saving for Web/PWA and desktop apps, with configurable silence handling and audio-input retention

## Setup Guide

Before using EffeTune, you'll need to set up your audio routing. Here's how to configure different audio sources:

### Music File Player Setup

- Open the EffeTune web app in your browser, or launch the EffeTune desktop app
- Open and play a music file to ensure proper playback
   - Open a music file and select EffeTune as the application (desktop app only)
   - Or select Open music file... from the File menu (desktop app only)
   - Or drag the music file into the window
- For player-only use, set Input Device to None (music file player only) in Audio Configuration to avoid using a live audio input
- In the desktop app, choose **View > Mini Player** (Ctrl/Cmd+Shift+M) or use the player’s mini-player button to keep playback controls in a compact window. The pin button keeps it above other windows.

### Streaming Service Setup

To process audio from streaming services (Spotify, YouTube Music, etc.):

1. Prerequisites:
   - Install a virtual audio device (e.g., VB Cable, Voice Meeter, or ASIO Link Tool)
   - Configure your streaming service to output audio to the virtual audio device

2. Configuration:
   - Open the EffeTune web app in your browser, or launch the EffeTune desktop app
   - Select the virtual audio device as the input source
     - In Chrome, the first time you open it, a dialog box appears asking you to select and allow audio input
     - Open Audio Configuration from the Settings menu to choose input/output devices and audio format
   - Start playing music from your streaming service
   - Verify that audio is flowing through EffeTune
   - For more detailed setup instructions, see the [FAQ](docs/faq.md)

### Physical Audio Source Setup

To use EffeTune with CD players, network players, or other physical sources:

- Connect your audio interface to your computer
- Open the EffeTune web app in your browser, or launch the EffeTune desktop app
- Select your audio interface as the input and output source
   - In Chrome, the first time you open it, a dialog box appears asking you to select and allow audio input
   - Open Audio Configuration from the Settings menu to choose input/output devices and audio format
- Your audio interface now functions as a multi-effects processor:
   * Input: Your CD player, network player, or other audio source
   * Processing: Real-time effects through EffeTune
   * Output: Processed audio to your amplifier or speakers

## Usage

### Application Settings

Open **Settings > Config...** to choose **Language**, set **Startup view:**, and configure **Effect Pipeline at startup:**. **Startup view:** can be **Effect Pipeline (Default)** or **Music Library**. When you choose Music Library, use its list to select **Tracks**, **Albums**, **Artists**, **Genres**, **Subfolders**, **Folders**, or **Playlists** as the first library view.

Supported desktop builds can also be controlled by OpenHome apps on the same local network. This is off by default; see [OpenHome Remote Control](docs/music-library.md#openhome-remote-control-desktop-app) for setup, network access, compatibility, and limitations.

### Browsing Your Music Library

1. Open **Music Library** from the PC header, the mobile **Library** tab, or **View > Music Library** in the desktop app.
2. Select **Add Music Folder** to index a folder of music files. External CUE sheets can divide WAV or FLAC album files in the same folder into individual tracks.
3. Browse **Tracks**, **Albums**, **Artists**, **Genres**, **Subfolders**, **Folders**, **Recently Added**, or **Playlists**, and use **Search library** to search the catalog. **Subfolders** groups tracks by their containing path inside each indexed root, while **Folders** manages those roots.
4. Use **Play** to listen through the current effect pipeline, or use **Play Next**, **Add to Queue**, and **Add to Playlist** to manage playback.
5. Use **Rescan** after changing files, and **Reconnect** if a browser or folder permission is lost.
   - [More about Music Library](docs/music-library.md)

In both PC and mobile layouts, track searches and album, artist, genre, subfolder, and playlist details select all matching tracks by default when there are 300 tracks or fewer; results with 301 tracks or more are not selected automatically. On mobile, automatic selection changes only the selection state. Only long-pressing a track enters selection mode and shows checkboxes, **Select All**, and **Deselect All**; selecting or deselecting tracks does not enter or leave that mode, and the usual row actions remain available.

PC Chromium browsers can keep access to selected music folders between sessions. In Safari, Firefox, mobile browsers, and other browsers without persistent folder access, select the folder or files again after each reload; EffeTune reconnects them to the existing catalog.

Large collections load in stages from storage; scanning and loading speed depends on your device, collection, and available memory. Very fast scrolling can briefly show blank rows while the next tracks load, especially on slow storage.

### Building Your Effect Chain

1. Available effects are listed on the left side of the screen
   - Use the search button next to "Available Effects" to filter effects
   - Type any text to find effects by name or category
   - Press ESC to clear the search
2. Drag effects from the list to the Effect Pipeline area
   - On mobile, open the Effects tab and tap the + button to add effects from the full-screen list
3. Effects are processed in order from top to bottom
4. Drag the handle (⋮) or click the ▲▼ buttons to reorder the effects
   - For Section effects: Shift+click the ▲▼ buttons to move entire sections (from one Section to the next Section, pipeline beginning, or end of pipeline)
5. Click an effect's name to expand/collapse its settings
   - Shift+click on a Section effect to collapse/expand all effects within that section
   - Shift+click on other effects to collapse/expand all effects except for the Analyzer category
   - Ctrl+click to collapse/expand all effects
6. Use the ON button to bypass individual effects
7. Click the ? button to open its detailed documentation in a new tab
8. Remove effects using the × button
   - For Section effects: Shift+click the × button to remove entire sections
9. Click the routing button to set the channels to be processed and the input and output busses
   - [More about bus functions](docs/bus-function.md)
10. For fine slider adjustment, hold Shift while dragging; the value changes by one minimum step at a time

### Using Presets

1. Save Your Effect Chain:
   - Set up your desired effect chain and parameters
   - Enter a name for your preset into the input field
   - Click the save button to store it

2. Load a Preset:
   - Type or select a preset name from the dropdown list
   - The preset will be loaded automatically
   - All effects and their settings will be restored

3. Delete a Preset:
   - Select the preset you want to remove
   - Click the delete button
   - Confirm the deletion when prompted

4. Preset Information:
   - Each preset stores your complete effect chain configuration
   - Includes effect order, parameters, and states

### Using Section Features

1. Section Effect Usage:
   - Add a Section effect at the beginning of a group of effects
   - Enter a descriptive name in the Comment field
   - Toggling the Section ON/OFF bypasses or restores that section while preserving each effect's own ON/OFF state
   - Use multiple Section effects to organize your effect chain into logical groups
   - [More about control effects](docs/plugins/control.md)

### Using AB Pipeline Features

1. AB Pipeline Overview:
   - EffeTune can maintain two separate effect pipelines: Pipeline A and Pipeline B
   - At startup, only Pipeline A is loaded; Pipeline B is created when needed
   - All processing, saving, loading, and editing operations work on the currently selected pipeline

2. AB Toggle Button:
   - Located to the right of the Effect Pipeline header
   - Shows "A" by default (Pipeline A active)
   - Click to switch between Pipeline A and Pipeline B
   - If Pipeline B doesn't exist when toggling, Pipeline A's settings are copied to Pipeline B

3. AB Menu (Dropdown Button):
   - Located to the right of the AB toggle button
   - "A → B": Copy Pipeline A settings to Pipeline B and switch to Pipeline B
   - "B → A": Copy Pipeline B settings to Pipeline A and switch to Pipeline A

4. Double Blind Test:
   - Compare Pipeline A and Pipeline B by ear without knowing which one is playing
   - Run an ABX test to check whether you can really tell the two pipelines apart, or an A/B preference test to find out which one you prefer, with a statistical significance check
   - Open it from the ▼ pipeline menu to the right of the AB toggle button (also available from the File menu in the desktop app)
   - [More about the Double Blind Test](docs/double-blind-test.md)

### Effect Selection and Keyboard Shortcuts

1. Effect Selection Methods:
   - Click on effect headers to select individual effects
   - Hold Ctrl while clicking to select multiple effects
   - Click on empty space in the Pipeline area to deselect all effects

2. Keyboard Shortcuts:
   - Ctrl + Z: Undo
   - Ctrl + Y: Redo
   - Ctrl + S: Save the current pipeline
   - Ctrl + Shift + S: Save current pipeline as
   - Ctrl + X: Cut selected effects
   - Ctrl + C: Copy selected effects
   - Ctrl + V: Paste effects from clipboard
   - Ctrl + F: Search for effects
   - Ctrl + A: Select all effects in the pipeline
   - Delete: Delete selected effects
   - ESC: Deselect all effects
   - T: Toggle between Pipeline A and Pipeline B
   - A: Switch to Pipeline A
   - B: Switch to Pipeline B

3. Keyboard Shortcuts (when using the player):
   - Space: Play/Pause
   - Ctrl + → or N: Next track
   - Ctrl + ← or P: Previous track
   - Shift + → or F or .: Fast-forward 10 seconds
   - Shift + ← or R or ,: Rewind 10 seconds
   - Ctrl + M: Toggle Repeat mode
   - Ctrl + H: Toggle Shuffle mode
   - T: Toggle Pipeline A/B
   - A: Switch to Pipeline A
   - B: Switch to Pipeline B

### Processing Audio Files

1. File Drop or File Specification Area:
   - A dedicated drop area is always visible below the Effect Pipeline
   - Supports single or multiple audio files
   - Files are processed using the current Pipeline settings
   - All processing is done at the Pipeline's sample rate

2. Processing Status:
   - Progress bar shows current processing status
   - Processing time depends on file size and effect chain complexity

3. Download or Save Options:
   - The processed file is output in WAV format
   - For multiple files, select an output folder before processing begins; each file is saved directly to that folder as it completes
   - On older browsers without folder selection support, multiple files are packaged into a ZIP file for download

### Sharing Effect Chains

You can share your effect chain configuration with other users:
1. After setting up your desired effect chain, click the "Share" button in the top-right corner of the Effect Pipeline area
2. The web app URL will be automatically copied to your clipboard
3. Share the copied URL with others - they can recreate your exact effect chain by opening it
4. Shared URLs store the effect settings needed for reproduction; the web app also restores your normal working state from browser storage
5. In the desktop app version, export the settings to an effetune_preset file from the File menu
6. Share the exported effetune_preset file. The effetune_preset file can also be loaded by dragging it into the web app window

### Audio Reset

If you experience audio issues (dropouts, glitches):
1. Choose "Reset Audio" from the Settings menu or mobile overflow menu. In the desktop app, you can also select Reload from the View menu
2. The audio pipeline will be rebuilt automatically
3. Your effect chain configuration will be preserved

### Frequency Response Measurement and Correction

To measure your audio system's frequency response and create a flat correction EQ:
1. Launch the [Frequency Response Measurement tool](https://effetune.frieve.com/features/measurement/measurement.html), or select Frequency Response Measurement from the Settings menu.
2. Follow the guided setup to configure your measurement microphone and output device
3. Measure your system's frequency response at one or more listening positions
4. Generate a parametric EQ correction that can be directly imported into EffeTune
5. Apply the correction to achieve a more accurate, neutral sound reproduction

To remove the audio interface's own response, connect its output directly to its input and save that loopback as a normal, uncalibrated measurement with an impulse response. For the next measurement, choose that saved point under **Audio Interface Calibration**. Use the same interface, input and output channels, sampling rate, and input/output gains, and do not change the gains after the loopback measurement. Choose **None (uncalibrated)** to measure without this correction.

Saved measurements with impulse-response data show a normalized **Impulse Response** plot in the results. It opens at 0–10 ms from the detected onset. Use the mouse wheel or buttons to zoom the time axis, and drag the plot or use the slider to scroll. Selecting a measurement point updates the plot; **All (Average)** displays the first point that has saved impulse-response data and identifies it above the graph. Use **Export Impulse Response (WAV)** below the plot to save the displayed point's complete, unnormalized response as a mono 32-bit floating-point WAV at the measurement sample rate.

To inspect the active pipeline's Frequency, Phase, Min Group Delay, Excess Group Delay, and Impulse responses—including up to four selected outputs and optional saved speaker responses—see the [Pipeline Analyzer guide](docs/pipeline-analyzer.md).

## Common Effect Combinations

Here are some popular effect combinations to enhance your listening experience:

### Headphone Enhancement
1. Stereo Blend -> RS Reverb
   - Stereo Blend: Adjusts stereo width for comfort (60-100%)
   - RS Reverb: Adds subtle room ambience (10-20% mix)
   - Result: More natural, less fatiguing headphone listening

### Vinyl Simulation
1. Wow Flutter -> Noise Blender -> Saturation
   - Wow Flutter: Adds gentle pitch variation
   - Noise Blender: Creates vinyl-like atmosphere
   - Saturation: Adds analog warmth
   - Result: Authentic vinyl record experience

### FM Radio Style
1. Multiband Compressor -> Stereo Blend
   - Multiband Compressor: Creates that "radio" sound
   - Stereo Blend: Adjusts stereo width for comfort (100-150%)
   - Result: FM-radio-style polished sound

### Lo-Fi Character
1. Bit Crusher -> Simple Jitter -> RS Reverb
   - Bit Crusher: Reduces bit depth for retro feel
   - Simple Jitter: Adds digital imperfections
   - RS Reverb: Creates atmospheric space
   - Result: Classic lo-fi aesthetic

## Troubleshooting and FAQ

If you encounter any issues, please refer to the [Troubleshooting and FAQ](docs/faq.md).
If the problem persists, report it through [GitHub Issues](https://github.com/Frieve-A/effetune/issues).

## Available Effects

| Category | Effect | Description | Documentation |
|-----------|--------|-------------|---------------|
| Analyzer  | Level Meter | Displays audio level with peak hold | [Details](docs/plugins/analyzer.md#level-meter) |
| Analyzer  | Oscilloscope | Real-time waveform visualization | [Details](docs/plugins/analyzer.md#oscilloscope) |
| Analyzer  | Spectrogram | Shows frequency spectrum changes over time | [Details](docs/plugins/analyzer.md#spectrogram) |
| Analyzer  | Spectrum Analyzer | Shows the strength of bass, mids, and treble in real time | [Details](docs/plugins/analyzer.md#spectrum-analyzer) |
| Analyzer  | Stereo Meter | Visualizes stereo balance and channel correlation | [Details](docs/plugins/analyzer.md#stereo-meter) |
| Basics    | Channel Divider | Splits stereo signal into frequency bands and routes each band to separate stereo output pairs | [Details](docs/plugins/basics.md#channel-divider) |
| Basics    | DC Offset | DC offset adjustment | [Details](docs/plugins/basics.md#dc-offset) |
| Basics    | FIR Crossover | FIR crossover that routes steeply separated frequency bands to stereo output pairs | [Details](docs/plugins/basics.md#fir-crossover) |
| Basics    | Matrix | Routes and mixes audio channels with flexible control | [Details](docs/plugins/basics.md#matrix) |
| Basics    | MultiChannel Panel | Control panel for multiple channels with volume, mute, solo and delay | [Details](docs/plugins/basics.md#multichannel-panel) |
| Basics    | Mute | Completely silences the audio signal | [Details](docs/plugins/basics.md#mute) |
| Basics    | Polarity Inversion | Signal polarity inversion | [Details](docs/plugins/basics.md#polarity-inversion) |
| Basics    | Stereo Balance | Stereo channel balance control | [Details](docs/plugins/basics.md#stereo-balance) |
| Basics    | Volume | Basic volume control | [Details](docs/plugins/basics.md#volume) |
| Delay     | Delay          | Standard delay effect                                   | [Details](docs/plugins/delay.md#delay) |
| Delay     | Time Alignment | Fine-tunes playback timing for speaker and listening-position alignment | [Details](docs/plugins/delay.md#time-alignment) |
| Dynamics  | Auto Leveler | Automatic volume adjustment based on LUFS measurement for consistent listening experience | [Details](docs/plugins/dynamics.md#auto-leveler) |
| Dynamics  | Brickwall Limiter | Limits signal peaks to prevent digital clipping | [Details](docs/plugins/dynamics.md#brickwall-limiter) |
| Dynamics  | Compressor | Smooths sudden loud passages for more comfortable listening | [Details](docs/plugins/dynamics.md#compressor) |
| Dynamics  | Expander | Restores dynamic contrast by making below-threshold quiet sounds quieter | [Details](docs/plugins/dynamics.md#expander) |
| Dynamics  | Gate | Reduces low-level sound during gaps or quiet sections | [Details](docs/plugins/dynamics.md#gate) |
| Dynamics  | Multiband Compressor | 5-band volume balancing for a steady, radio-like listening sound | [Details](docs/plugins/dynamics.md#multiband-compressor) |
| Dynamics  | Multiband Expander | 5-band expander for restoring natural contrast in overly flat recordings | [Details](docs/plugins/dynamics.md#multiband-expander) |
| Dynamics  | Multiband Transient | Shapes attack and sustain separately across bass, mid, and treble ranges | [Details](docs/plugins/dynamics.md#multiband-transient) |
| Dynamics  | Power Amp Sag | Simulates power amplifier voltage sag under high load conditions | [Details](docs/plugins/dynamics.md#power-amp-sag) |
| Dynamics  | Transient Shaper | Adjusts the punch and body of music by shaping attacks and sustain | [Details](docs/plugins/dynamics.md#transient-shaper) |
| EQ        | 15Band GEQ | 15-band graphic equalizer | [Details](docs/plugins/eq.md#15band-geq) |
| EQ        | 15Band PEQ | 15-band parametric equalizer for detailed listening tone adjustment | [Details](docs/plugins/eq.md#15band-peq) |
| EQ        | 5Band Dynamic EQ | 5-band dynamic equalizer with threshold-based frequency adjustment | [Details](docs/plugins/eq.md#5band-dynamic-eq) |
| EQ        | 5Band FIR PEQ | Five-band parametric tone shaping implemented as a minimum- or linear-phase FIR filter | [Details](docs/plugins/eq.md#5band-fir-peq) |
| EQ        | 5Band PEQ | Flexible 5-band equalizer for shaping bass, mids, and treble | [Details](docs/plugins/eq.md#5band-peq) |
| EQ        | Band Pass Filter | Focus on specific frequencies | [Details](docs/plugins/eq.md#band-pass-filter) |
| EQ        | Comb Filter | Adds phasey, hollow, or metallic coloration | [Details](docs/plugins/eq.md#comb-filter) |
| EQ        | Earphone Cable Sim | Helps check how small normal earphone-cable response shifts usually are | [Details](docs/plugins/eq.md#earphone-cable-sim) |
| EQ        | Group Delay EQ | Adjusts the delay of each frequency band without changing the tone | [Details](docs/plugins/eq.md#group-delay-eq) |
| EQ        | Hi Pass Filter | Remove unwanted low frequencies with precision | [Details](docs/plugins/eq.md#hi-pass-filter) |
| EQ        | Lo Pass Filter | Remove unwanted high frequencies with precision | [Details](docs/plugins/eq.md#lo-pass-filter) |
| EQ        | Loudness Equalizer | Frequency balance correction for low-volume listening | [Details](docs/plugins/eq.md#loudness-equalizer) |
| EQ        | Narrow Range | Combination of high-pass and low-pass filters | [Details](docs/plugins/eq.md#narrow-range) |
| EQ        | Room EQ      | FIR correction from saved room measurements | [Details](docs/plugins/eq.md#room-eq)      |
| EQ        | Tilt EQ      | Tilt equalizer for quick tone shaping | [Details](docs/plugins/eq.md#tilt-eq)      |
| EQ        | Tone Control | Three-band tone control | [Details](docs/plugins/eq.md#tone-control) |
| Lo-Fi     | AM Radio Simulator | Passes music through a modeled AM broadcast and receiver chain | [Details](docs/plugins/lofi.md#am-radio-simulator) |
| Lo-Fi     | Bit Crusher | Bit depth reduction and zero-order hold effect | [Details](docs/plugins/lofi.md#bit-crusher) |
| Lo-Fi     | Cassette Artifacts | Records music onto a modeled compact cassette and plays it back through a Type I/II/IV deck with Dolby B/C | [Details](docs/plugins/lofi.md#cassette-artifacts) |
| Lo-Fi     | Digital Error Emulator | Simulates various digital audio transmission errors and vintage digital equipment characteristics | [Details](docs/plugins/lofi.md#digital-error-emulator) |
| Lo-Fi     | DSD64 IMD Simulator | Simulates audible intermodulation distortion from DSD64 ultrasonic noise | [Details](docs/plugins/lofi.md#dsd64-imd-simulator) |
| Lo-Fi     | FM Radio Simulator | Passes music through a physically simulated FM broadcast and receiver chain | [Details](docs/plugins/lofi.md#fm-radio-simulator) |
| Lo-Fi     | G.726 Simulator | Simulates an ITU-T G.726 speech-codec encode/decode round trip with an optional noisy radio link | [Details](docs/plugins/lofi.md#g726-simulator) |
| Lo-Fi     | GSM-FR Simulator | Simulates a 13 kbit/s GSM-FR speech-codec encode/decode round trip over a radio link with frame erasure concealment | [Details](docs/plugins/lofi.md#gsm-fr-simulator) |
| Lo-Fi     | Hum Generator | Adds controllable 50/60 Hz electrical hum ambience for vintage/lo-fi listening | [Details](docs/plugins/lofi.md#hum-generator) |
| Lo-Fi     | MP3 Codec Simulator | Simulates a clean low-bitrate MPEG Layer III encode/decode round trip | [Details](docs/plugins/lofi.md#mp3-codec-simulator) |
| Lo-Fi     | Noise Blender | Adds adjustable background noise texture for lo-fi ambience | [Details](docs/plugins/lofi.md#noise-blender) |
| Lo-Fi     | SBC Codec Simulator | Simulates a Bluetooth A2DP SBC encode/decode round trip with optional link packet loss and concealment | [Details](docs/plugins/lofi.md#sbc-codec-simulator) |
| Lo-Fi     | Simple Jitter | Digital jitter simulation | [Details](docs/plugins/lofi.md#simple-jitter) |
| Lo-Fi     | SW Radio Simulator | Passes music through a modeled shortwave broadcast, ionospheric path, and receiver chain | [Details](docs/plugins/lofi.md#sw-radio-simulator) |
| Lo-Fi     | Tape Artifacts | Records music onto a modeled reel-to-reel tape and plays it back | [Details](docs/plugins/lofi.md#tape-artifacts) |
| Lo-Fi     | Vinyl Artifacts | Adds vinyl-style pops, crackle, hiss, rumble, and stereo noise bleed | [Details](docs/plugins/lofi.md#vinyl-artifacts) |
| Lo-Fi     | Vinyl Simulator | Cuts the input into a modeled groove and plays it back with a physical stylus model | [Details](docs/plugins/lofi.md#vinyl-simulator) |
| Modulation | Auto Filter | Sweeps a resonant filter with an LFO or the music's amplitude envelope | [Details](docs/plugins/modulation.md#auto-filter) |
| Modulation | Auto Pan | Moves stereo-pair level smoothly across the listening field | [Details](docs/plugins/modulation.md#auto-pan) |
| Modulation | Chorus | Adds moving delayed voices for chorus, ensemble, flanging, or vibrato | [Details](docs/plugins/modulation.md#chorus) |
| Modulation | Doppler Distortion | Simulates natural, dynamic changes in sound caused by subtle speaker cone movements | [Details](docs/plugins/modulation.md#doppler-distortion) |
| Modulation | Frequency Shifter | Translates frequencies, applies ring modulation, or creates a barber-pole shift | [Details](docs/plugins/modulation.md#frequency-shifter) |
| Modulation | Phaser | Creates moving peaks and notches with classic or barber-pole sweeps | [Details](docs/plugins/modulation.md#phaser) |
| Modulation | Pitch Shifter | Raises or lowers music pitch without changing tempo | [Details](docs/plugins/modulation.md#pitch-shifter) |
| Modulation | Pitch Shifter HQ | Raises or lowers pitch with fewer phase artifacts for careful listening | [Details](docs/plugins/modulation.md#pitch-shifter-hq) |
| Modulation | Rotary Speaker | Combines independent horn and drum motion for a rotary-speaker effect | [Details](docs/plugins/modulation.md#rotary-speaker) |
| Modulation | Tremolo | Volume-based modulation effect | [Details](docs/plugins/modulation.md#tremolo) |
| Modulation | Wow Flutter | Adds subtle tape or record-style pitch wavering for vintage character | [Details](docs/plugins/modulation.md#wow-flutter) |
| Resonator | Horn Resonator | Horn resonance simulation with customizable dimensions | [Details](docs/plugins/resonator.md#horn-resonator) |
| Resonator | Horn Resonator Plus | Smoother horn-speaker resonance for natural listening color | [Details](docs/plugins/resonator.md#horn-resonator-plus) |
| Resonator | Modal Resonator | Frequency resonance effect with up to 5 resonators | [Details](docs/plugins/resonator.md#modal-resonator) |
| Reverb    | Dattorro Plate Reverb | Classic plate reverb based on Dattorro algorithm | [Details](docs/plugins/reverb.md#dattorro-plate-reverb) |
| Reverb    | FDN Reverb | Feedback Delay Network reverb with rich, dense reverb textures | [Details](docs/plugins/reverb.md#fdn-reverb) |
| Reverb    | IR Reverb | Convolution reverb using imported room and equipment impulse responses | [Details](docs/plugins/reverb.md#ir-reverb) |
| Reverb    | RS Reverb | Random scattering reverb with natural diffusion | [Details](docs/plugins/reverb.md#rs-reverb) |
| Saturation| Bandwidth Extender | Generates high-frequency content above a detected or specified cutoff | [Details](docs/plugins/saturation.md#bandwidth-extender) |
| Saturation| Dynamic Saturation | Simulates the nonlinear displacement of speaker cones | [Details](docs/plugins/saturation.md#dynamic-saturation) |
| Saturation| Exciter | Add harmonic content to enhance clarity and presence | [Details](docs/plugins/saturation.md#exciter) |
| Saturation| Hard Clipping | Digital hard clipping effect | [Details](docs/plugins/saturation.md#hard-clipping) |
| Saturation | Harmonic Distortion | Adds character with adjustable 2nd- to 5th-order harmonic distortion | [Details](docs/plugins/saturation.md#harmonic-distortion) |
| Saturation| Multiband Saturation | Adds warmth or edge separately to low, mid, and high ranges | [Details](docs/plugins/saturation.md#multiband-saturation) |
| Saturation| Saturation | Adds warm analog-style richness and character | [Details](docs/plugins/saturation.md#saturation) |
| Saturation| Sub Synth | Mixes in a filtered low-frequency signal for bass enhancement | [Details](docs/plugins/saturation.md#sub-synth) |
| Saturation| Tube Simulator | Models tube line stages and push-pull or single-ended triode (300B/2A3) power amplifiers | [Details](docs/plugins/saturation.md#tube-simulator) |
| Spatial   | Crossfeed Filter | Headphone crossfeed filter for natural stereo imaging | [Details](docs/plugins/spatial.md#crossfeed-filter) |
| Spatial   | MS Matrix | Converts between stereo and Mid/Side for center/ambience adjustments | [Details](docs/plugins/spatial.md#ms-matrix) |
| Spatial   | Multiband Balance | 5-band frequency-dependent stereo balance control | [Details](docs/plugins/spatial.md#multiband-balance) |
| Spatial   | Phase Select EQ | Boosts or cuts frequency components selected by L/R phase difference | [Details](docs/plugins/spatial.md#phase-select-eq) |
| Spatial   | Stereo Blend | Controls stereo width from mono to enhanced stereo | [Details](docs/plugins/spatial.md#stereo-blend) |
| Others    | Oscillator | Test tone and noise generator for checking speakers/headphones | [Details](docs/plugins/others.md#oscillator) |
| Control   | Section | Groups effects so a whole section can be bypassed or restored | [Details](docs/plugins/control.md) |

## Technical Information

### Browser Compatibility

Frieve EffeTune has been tested and verified to work on Google Chrome. The application requires a modern browser with support for:
- Web Audio API
- Audio Worklet
- getUserMedia API
- Drag and Drop API
- Service Worker, for installable/offline web app support

### Browser Support Details
1. Chrome/Chromium
   - Fully supported and recommended
   - Update to latest version for best performance

2. Firefox/Safari
   - Limited support
   - Some features such as output device selection, Wake Lock, install behavior, or audio file formats may vary by browser
   - Consider using Chrome for best experience

### Recommended Sample Rate

Set EffeTune's **Sample Rate** to 96 kHz. This reduces audible-band aliasing from nonlinear effects whose anti-aliasing is limited. The setting controls EffeTune's processing rate and can normally differ from the OS, audio-device, and VB-CABLE rates, so those do not need to be changed. Confirm the effective Sample Rate shown in the app: the initial unsaved setting may follow the OS or browser default, and the Web version may fall back if 96 kHz is unavailable. If playback drops out, first disable demanding effects or shorten the chain; lower the sample rate only if needed.

## Development Guide

[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/Frieve-A/effetune)

Want to create your own audio plugins? Check out our [Plugin Development Guide](docs/plugin-development.md).

## DSP Library

EffeTune's DSP engine is also an independent, deterministic MIT-licensed
library for Python, JavaScript, and browser AudioWorklets. Its public Chain
schema and generated effect catalog can be used without the EffeTune app.
See the [EffeTune DSP Library documentation](https://effetune.frieve.com/dsp/).

Use the package quickstarts for installation and complete runnable examples:

- [Python package](https://effetune.frieve.com/dsp/getting-started/python/)
- [JavaScript and AudioWorklet package](https://effetune.frieve.com/dsp/getting-started/javascript/)

The [DSP Library guide](https://effetune.frieve.com/dsp/) covers effects,
schemas, processing behavior, and required assets.

## Links

[Version History](docs/version-history.md)

[Source Code](https://github.com/Frieve-A/effetune)

[YouTube](https://www.youtube.com/@frieveamusic)

[Discord](https://discord.gg/gf95v3Gza2)

[Support on Ko-fi](https://ko-fi.com/frievea)

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