Audio Devices for Azure Speech SDK

Cross-platform audio device enumeration library for Python.

Features

• List audio input/output devices with detailed information
• Filter devices by type (input, output, or all)
• Cross-platform support (Windows, macOS, Linux)
• Unified API across all platforms
• No external dependencies

Installation

# From source
git clone https://github.com/nohanaga/audio_devices.git
cd audio_devices
pip install -e .

# Or install from wheel (download from GitHub Releases)
pip install audio_devices-0.1.0-cp39-cp39-macosx_10_9_x86_64.whl

Usage

import audio_devices

# Basic device listing (name: uid format)
devices = audio_devices.list_device_uids()
for device in devices:
    print(device)

# Detailed device information
device_details = audio_devices.list_device_details()
for device in device_details:
    print(f"Name: {device['name']}")
    print(f"UID: {device['uid']}")
    print(f"Type: {device['device_type']}")
    print(f"Input channels: {device['input_channels']}")
    print(f"Output channels: {device['output_channels']}")
    print(f"Manufacturer: {device['manufacturer']}")
    print()

# Filter devices by type
input_devices = audio_devices.list_devices_by_type("input")
output_devices = audio_devices.list_devices_by_type("output")
all_devices = audio_devices.list_devices_by_type("all")

# Convenience functions
input_devices = audio_devices.get_input_devices()
output_devices = audio_devices.get_output_devices()
all_devices = audio_devices.get_all_devices()

# Print devices in a user-friendly format
audio_devices.print_devices()
audio_devices.print_devices_by_type("input")

# Get platform information
platform_info = audio_devices.get_platform_info()
print(f"Platform: {platform_info['platform']}")
print(f"Backend: {platform_info['backend']}")

# Backward compatibility
devices = audio_devices.list_audio_devices()  # Same as list_device_uids()

Supported Platforms

• ✅ macOS: CoreAudio API
• ✅ Windows: WASAPI (Windows Audio Session API)
• ⚠️ Linux: Coming soon

API Reference

Core Functions

• list_device_uids() - Returns device names and UIDs in "name: uid" format
• list_device_details() - Returns detailed device information as dictionaries
• list_devices_by_type(device_type) - Filter devices by type ("all", "input", "output")

Convenience Functions

• get_input_devices() - Get input devices only
• get_output_devices() - Get output devices only
• get_all_devices() - Get all devices
• print_devices() - Print all devices in user-friendly format
• print_devices_by_type(device_type) - Print filtered devices
• get_platform_info() - Get platform and backend information

Device Information

Each device dictionary contains:

• name - Device name
• uid - Unique device identifier
• device_type - "input", "output", or "both"
• input_channels - Number of input channels
• output_channels - Number of output channels
• manufacturer - Device manufacturer

Development

git clone https://github.com/nohanaga/audio_devices.git
cd audio_devices
pip install -e .

Building Wheels

Wheels are automatically built for multiple platforms using GitHub Actions:

• Windows: win32, win_amd64
• macOS: macosx_*_x86_64, macosx_*_arm64
• Linux: linux_x86_64

License

MIT License