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... This changes visible behavior. If a realtime effect was open (say, AUGraphicEQ on Mac), and there were multiple projects, then the window was associated with one of the projects. But the "Apply" button could apply the effect to the active project, even if that was not the associated one. But the associated project was queried for the existence of a selection. Now, EffectUIHost::OnApply consistently examines and changes only the associated project, even if it is not active. You have to close the window and reopen it with the other project if you really want to change the other. You can't have two realtime effects open at once, even if for different projects. To overcome that limitation, we would have to make RealtimeEffectsManager store state per-project, not globally.
Audacity is an easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. Developed by a group of volunteers as open source.
- Recording from any real, or virtual audio device that is available to the host system.
- Export / Import a wide range of audio formats, extendible with FFmpeg.
- High quality using 32-bit float audio processing.
- Plug-ins Support for multiple audio plug-in formats, including VST, LV2, AU.
- Macros for chaining commands and batch processing.
- Scripting in Python, Perl, or any language that supports named pipes.
- Nyquist Very powerful built-in scripting language that may also be used to create plug-ins.
- Editing multi-track editing with sample accuracy and arbitrary sample rates.
- Accessibility for VI users.
- Analysis and visualization tools to analyze audio, or other signal data.
Getting Started
For end users, the latest Windows and macOS release version of Audacity is available from the Audacity website. Help with using Audacity is available from the Audacity Forum. Information for developers is available from the Audacity Wiki.