This task can be performed using Recordly
Open‑source screen recorder with auto‑zoom and cinematic cursors
Best product for this task
Recordly
oss
Recordly is an open-source screen recorder for macOS, Windows, and Linux that creates cinematic demos with auto-zoom, animated cursors, and an intuitive timeline editor. Capture system audio, microphone narration, and export polished videos or GIFs with annotations and custom backgrounds.

What to expect from an ideal product
- Recordly captures both system audio and microphone input simultaneously during screen recordings, so you don't need to choose between one or the other
- The software automatically syncs your voice narration with the sounds from your computer, keeping everything perfectly aligned in the final recording
- You can adjust the volume levels of system audio and microphone separately using the built-in timeline editor after recording
- The recording setup lets you enable both audio sources before you start, making it simple to capture presentations, tutorials, or gaming sessions with commentary
- Recordly works across macOS, Windows, and Linux, so you get the same dual audio capture features regardless of your operating system
