This task can be performed using Recordly
Open‑source screen recorder with cinematic cursors and minimal UI
Best product for this task
Recordly
oss
Recordly is an open-source screen recorder for MacOS, Windows, and Linux that adds auto-zoom, animated cursors, and dynamic webcam bubbles for polished demos and tutorials. Edit timelines, sync audio, and export MP4 or GIF files while saving reusable project files for ongoing work.

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
