MY WEBCAM TEST GUIDE

Desktop Screen Recorders with Audio and Voice Capture

How to record your desktop with system sound and your voice for free: choose a recorder, set input and output devices, check the file and fix missing audio.

Recording your desktop with sound means capturing two separate audio paths: system audio, which plays through your output device, and your voice, which comes from a microphone set as the input device. Free recorders differ mostly in which of these paths they can capture, so pick a tool based on what the final file needs to contain.

Before you start

Decide what you need in the recording: system sound only (for example, a demo with app sounds), your voice only (a narrated walkthrough), or both at once. Then match that requirement to a recorder you can get for free.

  • Windows: Xbox Game Bar is built into Windows 10 and 11, but it records one app window at a time, not the whole desktop or File Explorer. Recent Windows 11 versions of Snipping Tool can also record the screen; check whether your version shows audio and microphone toggles.
  • macOS: the Screenshot toolbar can record the screen with a microphone, but it does not capture system audio by itself.
  • Linux: desktop environments include their own recorders, and audio support depends on the environment and version.
  • All three platforms: OBS Studio is free and open source and can record the full desktop with system audio and a microphone as separate sources.

Built-in tools and OBS Studio record locally and save files on your computer. Browser-based or online recorders may process or upload recordings through a service, so read their stated file handling before capturing anything private. If you download a recorder, use the developer's official site or your operating system's app store rather than third-party download portals, which may bundle extra software.

Grant permissions before the first session. On macOS, screen recording and microphone access are controlled in System Settings under Privacy & Security, and the recorder may need to be restarted after you allow access. On Windows, microphone privacy settings must allow desktop apps to use the microphone. Close notifications and windows you do not want in the video.

Step-by-step instructions

Record the full desktop with system audio and voice in OBS Studio

  • 1. Install OBS Studio and open it. If the auto-configuration wizard appears, you can set it to optimize for recording or skip it.
  • 2. In the Sources panel, click the plus button and add a display capture source, then choose the monitor to record. On macOS the source name differs between versions.
  • 3. Open Settings, then Audio. Set Desktop Audio to your output device or Default, and set Mic/Auxiliary Audio to the microphone you will speak into.
  • 4. Play some sound and speak at your normal volume while watching the audio mixer meters. Adjust each input level so peaks stay out of the red zone; if you narrate, keep system audio noticeably lower than your voice.
  • 5. In Settings, then Output, choose the recording path and format. MKV is the safer choice if the app or computer might crash; you can convert it to MP4 later with File, Remux Recordings. Recent versions also offer MP4 variants designed to survive interruptions.
  • 6. Leave the sample rate at its default of 48 kHz unless you need to match another project.
  • 7. Click Start Recording, perform your task, then click Stop Recording. Use File, Show Recordings to open the folder.

On a Mac, Desktop Audio may not be available in OBS. Recent OBS versions on macOS 13 or later provide an audio capture source for system or application sound; older setups require a third-party virtual audio device instead.

Quick recording with built-in Windows tools

  • Xbox Game Bar: open the app you want to record, press Windows+G, and use the Capture widget to turn the microphone on or off. Press Windows+Alt+R to start and stop recording. Audio options are in Windows Settings under Gaming, then Captures. Clips are saved to the Captures folder inside Videos by default.
  • Snipping Tool: open it, switch to video recording mode, select an area and check for audio and microphone toggles before you start. If your version has no audio options, use OBS Studio or Game Bar instead.

Quick recording with voice on a Mac

  • 1. Press Shift-Command-5 to open the Screenshot toolbar.
  • 2. Choose Record Entire Screen or Record Selected Portion.
  • 3. Open Options, select your microphone and, if needed, change the save location.
  • 4. Click Record. To stop, click the stop button in the menu bar or press Command-Control-Esc.
  • 5. For system audio as well as voice, use OBS Studio as described above.

Check the output

Make a short test recording before the real session: play a sound, speak a few sentences, stop, then open the file in a different player from the one that recorded it.

  • Both audio sources are present: you hear system sound and your voice. If one is missing, that source was disabled or set to the wrong device.
  • Levels: your voice is clear without distortion, and background noise is low enough not to distract.
  • Sync: speech and on-screen actions line up at both the start and the end of a longer test.
  • Video: small text is readable and motion looks acceptable for your purpose.
  • File: the format opens in the app or platform where you will use it, and the duration matches what you recorded.

Some content cannot be captured as expected. Video from protected streaming services or players may appear black, and tool limits such as Game Bar's single-window capture or the Mac toolbar's lack of system audio apply regardless of settings.

Common problems and next steps

No system audio in the recording

Confirm the sound actually plays through the output device selected in the recorder. If you switched to headphones or a USB headset after configuring the recorder, select the new device or Default again. On a Mac, use a recorder and macOS version that support system audio capture.

Voice is missing or too quiet

Check that the correct microphone is selected as the input device, that it is not muted in the recorder or the operating system, and that microphone permission is granted. Raise the input level gradually and speak closer to the microphone rather than pushing the level into distortion.

Echo, hum or background noise

Wear headphones so speaker sound does not leak back into the microphone. Turn off fans or other noise sources where possible. OBS Studio includes audio filters such as noise suppression and a noise gate on each source; apply them lightly and test again, because strong settings can make speech sound unnatural.

Audio drifts out of sync in long recordings

Set the microphone and playback device to the same sample rate as the recorder, using Sound settings on Windows or Audio MIDI Setup on macOS. A Bluetooth headset can add delay; a wired microphone is more predictable for narration.

Black screen instead of the desktop

Check screen recording permission on macOS. On Windows laptops with two graphics processors, OBS may show a black display capture until it is set to run on the same graphics processor that drives the screen. Protected video playback cannot be fixed with recorder settings.

Choosing a free recorder to keep

For quick voice-over clips, the built-in tools are enough. For full-desktop recordings with both system sound and narration, OBS Studio is the more complete free option. Before relying on any other free download, confirm whether the free version adds a watermark, limits recording length or requires an account.