rpaudio

rpaudio is a Rust-based Python library for handling audio operations, designed to provide simple and efficient audio management. It leverages Rust's performance and concurrency safety to offer a robust solution for Python audio applications.

API

• AudioSink: Simple audio access and control for individual files.
• AudioChannel: Handle and process audio files in a queue via channels.
• ChannelManager: Multi-channel grouping and management.
• AudioSink.metadata Access information about audio files if present.
• Effects : FadeIn, FadeOut, ChangeSpeed

Supports: MP3, WAV, Vorbis and Flac (mp4 + AAC will also be supported in a future release)

Python 3.8+

Example Projects

FastAPI LAN Audio Web Client

Getting Started (Read the Docs)

import rpaudio
import asyncio
from rpaudio import FadeIn, FadeOut, ChangeSpeed

kill_audio = False
AUDIO_FILE = r"C:\Users\16145\Desktop\code_24\frpaudio\rpaudio\examples\ex.wav"


def on_audio_stop():
    global kill_audio
    kill_audio = True
    print("Audio has stopped")


async def play_audio():
    handler = rpaudio.AudioSink(callback=on_audio_stop).load_audio(AUDIO_FILE)
    print(handler.metadata)

    fade_in_effect = FadeIn(start_val=0.0, end_val=1.0, duration=3.0)
    fade_out_effect = FadeOut(duration=2.0)
    speed_up = ChangeSpeed(apply_after=1.0, end_val=0.8, duration=3.0)

    effects_list = [fade_in_effect,  fade_out_effect, speed_up]
    handler.apply_effects(effects_list)

    handler.play()


    while not kill_audio:
        await asyncio.sleep(1)


async def sleep_loop():
    global kill_audio
    i = 0
    while not kill_audio:
        await asyncio.sleep(1)
        i += 1


async def main():
    await asyncio.gather(play_audio(), sleep_loop())

asyncio.run(main())

OS Dependency Installation Instructions

Windows

No additional OS-level dependencies are required for rpaudio on Windows. Ensure you have the latest version of Python installed, and you can directly use pip to install the library:

pip install rpaudio

macOS

To install rpaudio on macOS, you need to install gettext:

Install gettext:

brew install gettext
brew link gettext --force

Linux

To install rpaudio on Linux, you may need to install some dependencies based on your distribution:

For Debian/Ubuntu-based distributions:

sudo apt-get update
sudo apt-get install -y pkg-config libasound2-dev

For Red Hat/CentOS-based distributions:

sudo yum install -y pkg-config alsa-lib-devel

After installing the necessary OS-level dependencies, you can install rpaudio using pip:

pip install rpaudio

Contributing

Please read CONTRIBUTING.md for guidelines on how to contribute.