streamlit-advanced-audio 0.1.2

Advanced audio player component for Streamlit with waveform visualization and region selection

🎵 Streamlit Advanced Audio - EN

README_CN.md

Features

While the original audio component in Streamlit provides basic audio playback functionality, it lacks advanced features such as style customization and current playback time tracking.

Feature	audix	st.audio
Waveform Visualization	✅	❌
Custom Time Region	✅	❌
Playback Status	✅	❌
Custom Appearance	✅	❌
Multiple Format Support	✅	✅
URL Support	✅	✅
File Upload	✅	✅

The audix component, built with react, wavesurfer.js, and ant design, offers the following features:

[!NOTE] audix means audio + extra

• Full compatibility with the original streamlit.audio component API
• Real-time playback information tracking for audio editing and trimming
  • Current playback time (currentTime)
  • Selected region information (selectedRegion)
• Modern styling with dark mode support and extensive customization options
  • Waveform color
  • Progress bar color
  • Waveform height
  • Bar width and spacing
  • Cursor styling
• Audio region selection support for quick interval selection and timing
• Support for custom regions style
• Support for custom regions add

❌ Current limitations:

• Basic URL handling (downloads to local before playback)
• Experimental trimming feature (requires Python-side processing based on return values)

More DEMOs

Refer to: advanced-audio-example.streamlit.app

Installation

Local installation:

git clone https://github.com/keli-wen/streamlit-advanced-audio
cd streamlit-advanced-audio
pip install -e .

PyPI installation:

pip install streamlit-advanced-audio

Basic Usage

1. Basic playback:

from streamlit_advanced_audio import audix

# Play local file
audix("path/to/your/audio/file.wav")

# Play from URL
audix("https://example.com/audio.mp3")

# Play NumPy array
import numpy as np
sample_rate = 44100
audio_array = np.sin(2 * np.pi * 440 * np.linspace(0, 1, sample_rate))
audix(audio_array, sample_rate=sample_rate)

2. Custom waveform styling and playback status get:

from streamlit_advanced_audio import audix, WaveSurferOptions

options = WaveSurferOptions(
    wave_color="#2B88D9",      # Waveform color
    progress_color="#b91d47",  # Progress bar color
    height=100,               # Waveform height
    bar_width=2,             # Bar width
    bar_gap=1                # Gap between bars
)

result = audix(
    "audio.wav",
    wavesurfer_options=options
)

# Get playback status
if result:
    current_time = result["currentTime"]
    selected_region = result["selectedRegion"]
    is_playing = result["isPlaying"]
    st.write(f"Current Time: {current_time}s")
    st.write(f"Is Playing: {is_playing}")
    if selected_region:
        st.write(f"Selected Region: {selected_region['start']} - {selected_region['end']}s")

3. Add custom regions and customize regions style:

from streamlit_advanced_audio import audix, CustomizedRegion, RegionColorOptions

# Customize regions style
region_colors = RegionColorOptions(
    interactive_region_color="rgba(160, 211, 251, 0.4)",      # Interactive region color
    start_to_end_mask_region_color="rgba(160, 211, 251, 0.3)" # Start time to end time mask color
)

# Add custom regions (read-only)
custom_regions = [
    CustomizedRegion(start=6, end=6.5, color="#00b89466"),     # Use hex color (with transparency)
    CustomizedRegion(start=7, end=8, color="rgba(255, 255, 255, 0.6)") # Use RGBA color
]

result = audix(
    "audio.wav",
    start_time=0.5,
    end_time=5.5,
    mask_start_to_end=True,                    # Show start_time to end_time mask
    region_color_options=region_colors,        # Set region color
    customized_regions=custom_regions          # Add custom read-only region
)

4. Set playback interval and looping:

audix(
    "audio.wav",
    start_time="1s",     # Supports various time formats
    end_time="5s",
    loop=True,           # Enable looping
    autoplay=False       # Auto-play setting
)

Development

This project is based on the Streamlit Component Templates.

For development details, please refer to the Quickstart section.

Here is the development guide:

• Ensure you have Python 3.6+, Node.js, and npm installed.
• Clone this project.
• Create a new Python virtual environment:

cd streamlit-advanced-audio
python -m venv venv
source venv/bin/activate
pip install streamlit # Install streamlit

• Initialize and run the frontend component template:

cd streamlit-advanced-audio/frontend
npm install    # Install npm dependencies
npm run start  # Start Webpack development server

• From another terminal, run the component's Streamlit app (in development, set __init__.py中的 _RELEASE to False):

cd streamlit-advanced-audio
. venv/bin/activate  # Activate your previously created virtual environment
pip install -e . # Install the component package
streamlit run example.py  # Run the component

• Modify the frontend code: streamlit-advanced-audio/frontend/src/
• Modify the backend code: streamlit-advanced-audio/__init__.py

[!IMPORTANT] You can use the following command to build and lint the project:

cd streamlit-advanced-audio/frontend
npm install
npm run build
cd ../../
bash lint.sh # **For** py and tsx code lint.

Pull requests for further improvements are welcome!

Acknowledgments

This project builds upon several excellent open-source solutions:

• Streamlit for their amazing platform
• Gradio for inspiration in ML application development
• Streamlit Component Template for the component development framework
• wavesurfer.js for audio waveform visualization
• wavesurfer Region Plugin for region selection and trimming
• Ant Design for UI components and dark mode support

🎵 Streamlit Advanced Audio - CN

README.md

功能与特性

原始 streamlit 中的 audio 组件提供了基本的音频播放功能，但是缺乏一些高级的特性，比如缺乏样式定制，无法获取当前播放的时间等。

Feature	audix	st.audio
Waveform Visualization	✅	❌
Custom Time Region	✅	❌
Playback Status	✅	❌
Custom Appearance	✅	❌
Multiple Format Support	✅	✅
URL Support	✅	✅
File Upload	✅	✅

audix (audix 是 audio + extra 的缩写) 组件基于 react，wavesurfer.js 和 ant design 开发，提供了如下的功能：

• 基本完全兼容了原始 streamlit.audio 组件的 API。
• 支持获取当前播放的时间，用于快捷的实现音频切分裁剪等功能。
  • 当前播放时间（currentTime）
  • 选中区域信息（selectedRegion）
• 使用了更现代的样式，支持黑暗模式也支持高度自定义样式（颜色大小等）。
  • 波形颜色
  • 进度条颜色
  • 波形高度
  • 条形宽度和间距
  • 光标样式
• 支持了音频区间的设定，可以快速获取音频的区间起始时间。
• 支持了自定义的区域颜色。
• 支持添加自定义的区域。

❌ 目前可能存在的不足之处：

• 对于 url 的处理比较粗糙，会先下载到本地再播放。
• 裁剪功能仅停留在实验阶段，需要在 python 端基于返回值进行裁剪。

更多 DEMO

可参考: advanced-audio-example.streamlit.app

安装与使用

从本地安装：

git clone https://github.com/keli-wen/streamlit-advanced-audio
cd streamlit-advanced-audio
pip install -e .

从 PyPI 安装：

pip install streamlit-advanced-audio

基础使用示例

1. 基本播放功能：

from streamlit_advanced_audio import audix

# 播放本地文件
audix("path/to/your/audio/file.wav")

# 播放URL音频
audix("https://example.com/audio.mp3")

# 播放NumPy数组
import numpy as np
sample_rate = 44100
audio_array = np.sin(2 * np.pi * 440 * np.linspace(0, 1, sample_rate))
audix(audio_array, sample_rate=sample_rate)

2. 自定义波形样式以及播放状态获取：

from streamlit_advanced_audio import audix, WaveSurferOptions

options = WaveSurferOptions(
    wave_color="#2B88D9",      # 波形颜色
    progress_color="#b91d47",  # 进度条颜色
    height=100,               # 波形高度
    bar_width=2,             # 条形宽度
    bar_gap=1                # 条形间距
)

result = audix(
    "audio.wav",
    wavesurfer_options=options
)

# 获取播放状态
if result:
    current_time = result["currentTime"]
    selected_region = result["selectedRegion"]
    isPlaying = result["isPlaying"]
    st.write(f"当前播放时间: {current_time}秒")
    st.write(f"是否正在播放: {isPlaying}")
    if selected_region:
        st.write(f"选中区域: {selected_region['start']} - {selected_region['end']}秒")

3. 自定义区域及颜色：

from streamlit_advanced_audio import audix, CustomizedRegion, RegionColorOptions

# 自定义区域颜色
region_colors = RegionColorOptions(
    interactive_region_color="rgba(160, 211, 251, 0.4)",      # 交互式区域颜色
    start_to_end_mask_region_color="rgba(160, 211, 251, 0.3)" # start_time 到 end_time 的蒙版颜色
)

# 添加自定义只读区域
custom_regions = [
    CustomizedRegion(start=6, end=6.5, color="#00b89466"),     # 使用十六进制颜色（带透明度）
    CustomizedRegion(start=7, end=8, color="rgba(255, 255, 255, 0.6)") # 使用 RGBA 颜色
]

result = audix(
    "audio.wav",
    start_time=0.5,
    end_time=5.5,
    mask_start_to_end=True,                    # 显示 start_time 到 end_time 的蒙版
    region_color_options=region_colors,        # 设置区域颜色
    customized_regions=custom_regions          # 添加自定义只读区域
)

自定义区域功能支持：

• 设置交互式区域和蒙版区域的颜色。
• 添加多个只读区域，支持 RGBA 和十六进制（带透明度）颜色格式。
• 通过 mask_start_to_end=True 在 start_time 和 end_time 之间显示蒙版。

4. 设置播放区间和循环：

audix(
    "audio.wav",
    start_time="1s",     # 支持多种时间格式
    end_time="5s",
    loop=True,           # 循环播放
    autoplay=False       # 自动播放
)

进一步开发

本代码基于 Streamlit Component Templates 开发。

具体可以参考关键的章节 Quickstart。

这里给出简易的开发流程：

• 确保你已经安装了 Python 3.6+, Node.js, 和 npm。
• 克隆本项目。
• 创建一个新的 Python 虚拟环境：

cd streamlit-advanced-audio
python -m venv venv
source venv/bin/activate
pip install streamlit # 安装 streamlit

• 初始化并运行组件模板的前端：

cd streamlit-advanced-audio/frontend
npm install    # 安装 npm 依赖
npm run start  # 启动 Webpack 开发服务器

• 从另一个终端，运行组件的 Streamlit 应用（在开发时注意将 __init__.py 中的 _RELEASE 设置为 False）：

cd streamlit-advanced-audio
. venv/bin/activate  # 激活你之前创建的虚拟环境
pip install -e . # 安装组件包
streamlit run example.py  # 运行组件

• 修改组件的前端代码：streamlit-advanced-audio/frontend/src/Audix.tsx。
• 修改组件的 Python 代码：streamlit-advanced-audio/__init__.py。

如果你有进一步的优化建议，欢迎提交 PR。

感谢

本项目的使用基于许多优秀的开源方案，在此特别感谢：

• Streamlit 提供了如此伟大的产品。
• Gradio 同样提供了优秀的 ML 应用开发体验。
• Streamlit Component Template 快捷的组件开发模板。
• wavesurfer.js 用于音频波形图的绘制。
• wavesurfer Region Plugin 用于区间绘制和裁剪。
• Ant Design 用于 UI 组件和黑暗模式。