Audio Volume Control for NVDA

An NVDA add-on that allows you to control the audio volume of individual applications directly using keyboard shortcuts.

GitHub Repository

Compatibility

| NVDA Version | Status | |--------------|--------| | 2025.3.2 | First tested version | | 2019.3 - 2025.3 | Supported (manifest range) |

Users may modify manifest.ini to adjust compatibility range for other NVDA versions.

Features

• List Active Applications: Shows all applications capable of producing audio.
• Separate Volume Control: Adjust volume per application without affecting system volume.
• Mute Toggle: Quickly mute or unmute specific applications.
• Reset Defaults: One-click button to reset all applications to 100% volume.
• Automatic Focus: Automatically selects the application you were using when opening the dialog.
• Automatic Updates: Checks for updates on NVDA startup and offers one-click installation.

Installation

1. Download the latest .nvda-addon release.
2. Open NVDA.
3. Press Enter on the downloaded file or use "Manage add-ons" dialog.
4. Restart NVDA when prompted.

Usage

1. Press Ctrl + NVDA + Y to open the Volume Control dialog.
2. Navigate the list with Up/Down arrows to select an application.
3. Press TAB to move to the Volume Slider. Use Left/Right arrows to adjust.
4. Press TAB to move to the Mute Checkbox. Press Space to toggle.
5. Press TAB to access the Reset Defaults button.
6. Press Esc or click Close to exit.

Building from Source

Prerequisites

• Python 3.10+
• SCons
• pip

Build on Linux

bash chmod +x build_linux.sh ./build_linux.sh

This downloads Windows binaries for psutil and generates the .nvda-addon package.

Documentation

For more detailed documentation, see the docs folder: - BUILD_INSTRUCTIONS.md - Detailed build instructions - DEPENDENCIES.md - Information about vendorized libraries - HOW_TO_BUILD.md - Step-by-step build guide - TROUBLESHOOTING.md - Common issues and solutions

Technical Details

This add-on uses: - pycaw (vendorized as avc_pycaw) for Windows Core Audio API - psutil with Windows .pyd binary for process information - NVDA's built-in comtypes for COM interface

Bugs and Suggestions

For reports on bugs, errors, or feature suggestions, please contact us.

Contact: https://t.me/tierryt2021