Auto Pan by Window Position

This Chrome extension automatically pans the audio of media elements (`<video>` and `<audio>`) to the left or right channels based on the horizontal position of the browser window relative to the center of the display.

## Features

- Automatic Audio Panning: Hear audio from the direction where your browser window is located. If the window is on the left side of the screen, the audio will pan to the left speaker/headphone, and vice versa.
- Adjustable Pan Rate: Control the intensity of the panning effect.
- Vertical Panning Support (PannerNode): By default, it uses standard stereo panning. You can enable vertical panning to also affect audio based on vertical window position and simulate distance.
- Multi-Monitor Support: You can configure the panning to be calculated relative to:
- The single display the window is currently on.
- The primary display (if you use multiple monitors).
- The aggregate center of all connected displays.

## Usage

Once installed, the extension works automatically in the background. It will attach to any `<video>` and `<audio>` tags on the web pages you visit and adjust the audio panning based on the window's position.

### Settings

Click on the extension icon in the toolbar to open the popup and configure:
- Enable/Disable: Toggle the auto-pan functionality.
- Pan Rate: Increase or decrease how strongly the audio leans to one side.
- Vertical Panning (PannerNode): Use an advanced vertical spatialization model instead of simple stereo panning.
- Multi-Monitor: Calculate pan position relative to the primary display.
- Multi-Monitor (All): Calculate pan position relative to the entire bounds of all combined displays.