Audacity 4.0 发布，采用Qt框架重建界面

音频编辑软件Audacity推出4.0版本，采用Qt框架重新构建应用界面1。新版本引入了剪辑编辑模式，支持对音频剪辑进行直接选择、多选、编组和自由放置等操作1。界面设计改为上下文敏感模式，移除了Select、Envelope、Draw和Multi-tool等工具模式1。

Audacity 4.0保留了Audacity 3的大部分功能，但在工作流程和用户界面上做出了优化1。新增了Light、Dark和High-contrast主题选项，同时支持Workspace保存功能1。在插件兼容性方面，该版本支持VST3、Nyquist、LV2（Linux）和Audio Units（macOS）等格式1。官方Windows版本增加了ASIO音频输入输出支持1。

新项目文件采用.aup4project格式，用户可以打开并转换现有的.aup3projects文件1。Audacity 4.0不再支持Time Tracks、Note/MIDI轨道、Mixer、Macro Manager和脚本管道等功能1。

Audacity 4.0 has been released, featuring a complete interface rebuild using the Qt framework that introduces a new clip editing mode alongside workflow and user interface improvements.1 The new version retains most functionality from Audacity 3, though some control positions and behaviors have been adjusted, and certain features have been removed.1

The redesigned application introduces a clip editing mode that allows direct selection, multi-selection, grouping, and free placement of audio clips.1 The interface has been simplified by removing the Select, Envelope, Draw, and Multi-tool modes in favor of context-sensitive design.1 Users can now choose between Light, Dark, and High-contrast themes, and workspaces can be saved for future sessions.1 The application supports VST3, Nyquist, LV2 (on Linux), and Audio Units (on macOS) plugin formats.1 The official Windows version now includes ASIO audio input and output support.1

Project files are now saved in the .aup4project format, with the ability to open and convert existing .aup3 projects.1 However, Audacity 4.0 discontinues support for several Audacity 3 features, including Time Tracks, Note and MIDI tracks, Mixer, Macro Manager, and script pipelines.1