https://github.com/shev0k/eqvita

System-wide EQ kernel plugin and app for PS Vita.
https://github.com/shev0k/eqvita

audio audio-processing dsp equalizer homebrew kernel-plugin psvita psvita-hacking psvita-homebrew psvita-homerew system-wide vita-homebrew vitasdk

Last synced: 5 months ago
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System-wide EQ kernel plugin and app for PS Vita.

• Host: GitHub
• URL: https://github.com/shev0k/eqvita
• Owner: shev0k
• Created: 2025-12-22T22:11:10.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2025-12-22T23:18:36.000Z (5 months ago)
• Last Synced: 2025-12-24T12:26:53.831Z (5 months ago)
• Topics: audio, audio-processing, dsp, equalizer, homebrew, kernel-plugin, psvita, psvita-hacking, psvita-homebrew, psvita-homerew, system-wide, vita-homebrew, vitasdk
• Language: C
• Homepage:
• Size: 229 KB
• Stars: 8
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# PS Vita Equalizer (EQVita)

System-wide 8-band graphic equalizer kernel plugin for PS Vita (3.65 Ensō) with a companion UI app.

This is the first EQ app to control frequency bands across the entire PS Vita audio system (yes, globally), simply because nobody bothered to make one before.

## Layout

- `plugin/` — Kernel plugin (`eq_speaker.skprx`)

- `app/` — UI app (`EQVita.vpk`)

- `common/` — Shared headers

- `docs/` — Technical notes

## Download

If you don't want to build it yourself, download the latest binaries from [Releases](https://github.com/shev0k/eq_app/releases).

## Screenshots

![Screenshot 1](https://raw.githubusercontent.com/shev0k/EQVita/refs/heads/main/screenshots/screenshot_1.png)

![Screenshot 2](https://raw.githubusercontent.com/shev0k/EQVita/refs/heads/main/screenshots/screenshot_2.png)

## Build

To build from source, you need [VitaSDK](https://vitasdk.org/).

```bash

# Configure

cmake -S . -B build

# Build

cmake --build build

```

Outputs:

- `build/plugin/eq_speaker.skprx`

- `build/app/EQVita.vpk`

## Install

1. Copy `eq_speaker.skprx` to `ur0:tai/`.

2. Add to `ur0:tai/config.txt` under `*KERNEL`:

   ```

   *KERNEL

   ur0:tai/eq_speaker.skprx

   ```

3. Reboot.

4. Install `EQVita.vpk`.

5. Run EQVita to adjust settings.

**Note:** The plugin is disabled by default to prevent boot issues. Launch EQVita to enable it.

## Usage

- **Bands:** 31Hz - 4kHz (Note: HPF option disables frequencies under 70Hz).

- **Gain:** ±12 dB

- **Controls:**

  - Triangle: Save preset

  - Square: Load preset (`ux0:data/eqvita/preset0.bin`)

- **Status:** Shows route, sample rate, and clip count.

## Notes

- **Hardware:** Tested on PS Vita 1000 (PCH-1000) with Switch OLED speaker mod. Should work on other models.

- **Personal Config:** I use +4 on bass and -4 on midrange. The difference is quite big.

- **Disclaimer:** This is my first PS Vita project and a hobby endeavor. If it works, it works.

- **Credits:** UI images adapted from VitaShell.

- Bluetooth detection is not yet implemented.

- DSP uses an in-place biquad chain with smoothing.

- If audio crackles, reduce gain or preamp.