Help us shape device audio capture on the web

Imagine you're building a web app that provides one of these experiences: Custom echo cancellation or voice processing. Note taking from a meeting or lecture playing in another tab or application. Livestream production or music creation tools, which process audio from different sources. To build these, your app needs access to the audio that's playing on the user's device. This could be the audio that's coming from a browser tab, another application, or somewhere else on the device. Let's call this device audio. On the Edge team, we're proposing a new API for capturing device audio without also capturing pixels on the screen, and we'd love your feedback on the design and whether you'd use it. The problem with getDisplayMedia() Today, if you want to implement the above use cases, your only option to capture device audio is to use navigator.mediaDevices.getDisplayMedia(). However, calling this method asks the user to share a tab, a window, or their entire screen. Here is what the…