To screen record with voice over, select a screen source and a microphone in your recorder, make a short test, then narrate while you demonstrate the task. If you already have a screen recording, add a separate voice track in a video editor and align each sentence with the action it explains.
The best starting point is the video you need to produce: a quick support explanation, a repeatable tutorial, or a polished training lesson. This guide covers both narration workflows, device-specific recording steps, software choices, consistent replacement takes, audio cleanup, and a copyable script for keeping the picture and voice in sync.
Choose live narration or voice over added afterward
| Workflow | Useful when | Main tradeoff |
|---|---|---|
| Speak while recording the screen | You need to explain a short task or show an issue as it happens | A mistake in the demonstration or narration may need a retake |
| Record the screen, then add narration | You want to tighten a tutorial, reuse footage, or revise an explanation | You must align voice and visuals during editing |
| Write a script and record in short sections | You need a longer lesson with several distinct steps | You need to organize the clips and check continuity |
For a support reply, live narration is often the shortest workflow. For an onboarding lesson that many people will watch, separate narration makes it easier to replace one explanation without performing the whole task again. Use the tutorial video guide to plan the lesson around an outcome.
How to record your screen and voice at the same time
- Prepare the task. Open the starting screen, use demonstration data, and close distracting windows or notifications.
- Select the capture source. Choose the tab, window, display, or portion that includes the steps you will show.
- Select the microphone. Confirm the actual input device, such as a headset or built-in microphone. A microphone captures your speech; application or system sound is a separate source.
- Make a short test. Say a sentence while clicking through one representative action, stop, and play the saved file.
- Record the explanation. State the outcome, name each important control, perform the action, and leave time to see the result.
- Review and share. Check the exported or saved video, trim unnecessary sections if needed, and confirm the intended viewer can open it.
Choose a capture area that remains useful when you move between steps. A single-window recording may miss a confirmation dialog or a second application. A full-display recording may include unrelated material. Check the actual saved picture during the test.
Record a voice-over screen capture on your device
Windows: OBS Studio screen source and microphone
The OBS quick-start guide describes adding a display or window capture source to a scene, checking the audio mixer, and selecting input devices in Settings → Audio. Use the auto-configuration wizard as a starting point, then test your recording settings.
- Add the screen source you need in Sources and check its preview.
- Speak and look for movement on the microphone meter. If the wrong input is selected, change it in audio settings.
- Check Settings → Output, then select Start Recording in the Controls dock.
- Stop the test and play the saved video before recording the complete explanation.
OBS is also available on macOS and Linux, with different screen-source choices. Do not assume that a moving meter guarantees the audio is included in the saved file; playback is the deciding check.
Mac: Screenshot toolbar or QuickTime Player
Apple’s Mac screen-recording guide covers Screenshot and QuickTime Player. Press Shift–Command–5, choose the recording area, open Options, and select a microphone for your voice. Check the save location, then select Record.
Stop using the menu-bar recording control and play the saved file. If you start with File → New Screen Recording in QuickTime, follow the recording interface that opens; its controls depend on macOS. Selecting a microphone does not establish that you have also selected application sound.
iPhone or iPad: enable the microphone before starting
Apple’s iPhone and iPad instructions include this microphone step:
- Open Control Center and find Screen Recording. Add the control if it is missing.
- Touch and hold the recording control, then turn Microphone on.
- Start the recording, wait for the countdown, and leave Control Center to demonstrate the task.
- Stop using the screen-recording control and find the recording in Photos.
Apple notes that some apps prevent audio or video recording and that screen recording cannot run alongside screen mirroring. Test the particular app before planning a long narrated demonstration.
Android: check the audio choice in Quick Settings
Google’s Android recording guide starts in Quick Settings: swipe down twice, select Screen record, choose the recording options, and select Start. You may need to add the control through Edit.
Check the available audio option and select the microphone when your voice is needed. Labels and available sources vary by phone and Android version; use your manufacturer’s instructions if your controls differ. Stop from the screen-recorder notification and play the result in Photos or the device’s gallery. This basic workflow does not require enabling developer options.
Choose software for recording and revision
The tool needs to support both the initial capture and the changes you expect. A quick spoken explanation may only need a recorder and a sharing link. A tutorial series may need editable voice tracks, annotations, captions, and reusable project files.
| Tool | Documented role | Check before committing |
|---|---|---|
| OBS Studio | Free, open-source recording on Windows, Mac, and Linux, with scenes and audio-source filters | Your screen sources, selected microphone, saved recording, and later editing route |
| Camtasia | Screen-first recording and editing, with screen, camera, microphone, and system audio captured as independent layers | The plan’s editing and export capabilities, and whether the finished export has a watermark |
| ScreenFlow | Mac recording and editing with multichannel audio, annotations, and caption tools | Current macOS support, project workflow, and the licensing needed for your release |
| Loom | Hosted screen recording and sharing; recording length, library limits, and editing differ by plan | Starter screen recordings currently have a five-minute limit and 25 videos per person; meeting allowances are separate |
No recorder earns an objective voice-quality score from its feature list. Your microphone, room, settings, and saved output determine whether the speech is understandable. Test a short capture, a small edit, and the final sharing route before recording a large project.
How to add voice over to an existing screen recording
Keep the original video and create a working copy for editing. Outline the explanation, record short sections, and put the voice track alongside the screen footage. Match the spoken instruction to the visible control or result.
For a documented example, Microsoft’s Clipchamp voice-over guide describes opening a video and using Record & create → Audio in personal accounts. Choose the microphone, record, stop, preview, and select Save and edit to add it to the timeline. Work or school accounts use the Webcam recorder’s audio-only option; the saved recording may need its audio detached.
On the timeline, move or split the audio so the explanation matches the footage. Preview transitions, then export as video: a GIF export will not retain the voice. Check the exported file rather than relying only on the editor preview.
If the narration reaches a new step before the picture does, adjust the pause or edit the footage. If the screen changes too quickly, re-record that section or extend the useful view where your editor allows it. Speeding up speech is rarely a good first fix for an unclear explanation.
Check a recognizable action near the start, middle, and end. A constant timing mismatch and one that grows through the recording are different problems; a single shift may fix the first while leaving the second. Find the first place where picture and voice disagree, and check whether it appeared in the original footage, after a timeline edit, or only in the export. If the narration explains a decision the footage never shows, record the missing visual or rewrite the section.
Copyable voice-over script and action plan
Write what the viewer needs to do and understand. Name controls rather than relying on “click here,” and explain the expected result after each action.
Write for speech: replace long procedural sentences with short explanations while keeping the precise rule. Read product names, shortcuts, numbers, and unusual terms aloud during rehearsal, and settle on consistent pronunciation before recording several lessons. An outline leaves more room for conversational delivery than a full script, but either way, do not read a paragraph while clicking through several unrelated screens. Comfortable delivery matters more than an announcer voice.
| Section | Example narration | What to show |
|---|---|---|
| Outcome | “This shows how to update the notification email.” | The starting page and relevant account context |
| Action | “Open Settings, then choose Notifications.” | The actual controls and destination page |
| Important detail | “Check this address before selecting Save.” | A demonstration address and the Save control |
| Verification | “The confirmation shows the change was saved.” | The confirmation and updated value |
| Next step | “If the confirmation does not appear, include the message in your support request.” | The information needed for follow-up |
Video purpose: Intended viewer: Starting screen / required access: Section 1 — outcome: Voice-over text: Visible action or result: Section 2 — main steps: Voice-over text: Visible action or result: Pause needed for reading: Section 3 — verification: Voice-over text: Success condition to show: Follow-up if it fails: Test playback checked: Final video location: Viewer access checked:
For a bug demonstration, explain what you expected and what actually happened. Pair the recording with an issue report so the next person has the environment and reproduction steps, not just a video link.
Keep narration consistent across takes and lessons
Before recording a series, make a sample containing normal speech, a few technical terms, and a brief pause, then listen for distant speech, echo, distortion, or noise that interferes with the words. Keep your position consistent, because moving toward and away from the microphone makes assembled narration uneven. Note your settings so a replacement recorded later sounds reasonably similar:
Lesson and section: Microphone/device selected: Microphone position and input setting: Room and noticeable background sounds: Capture source and application version: Sample recorded and played back: Settings to reproduce for later takes:
When you stumble, pause and repeat the whole sentence. For a screen mistake, restore a valid starting state before repeating the action; a replacement sentence cut halfway through a changing screen is harder to use than a complete short section. If you return another day, listen to the previous approved section, reproduce the setup, and compare the new take before recording every replacement.
Keep the original media and work on copies, organized by lesson and section. For a series, reuse the setup record, terminology list, title style, and file naming, and review one complete lesson before scaling the process.
Clean up audio and check the finished video
Remove failed takes and unrelated interruptions first, but keep pauses that give the viewer time to read or think. Listen across each edit so the voice does not jump unnaturally between phrases.
Audacity’s Noise Reduction documentation describes a two-pass workflow for steady noise. Select a noise-only sample, open Effect → Noise removal and repair → Noise reduction, and obtain the noise profile. Then select the audio to filter, apply a modest reduction, and preview the result. The profile must exclude wanted speech. Aggressive reduction can produce metallic artifacts or remove parts of the voice, and it does not reliably remove isolated sounds such as a door slam; a replacement take may be clearer.
During capture, OBS offers separate noise-gate and noise-suppression filters. A gate closes during quiet periods; suppression targets mild background noise and can distort speech when pushed too far. Neither replaces a usable recording environment, so test soft words and sentence endings before applying a filter throughout the lesson.
Review the final narration and captions together. W3C’s accessible-media guidance covers captions, transcripts, descriptions of meaningful visual information, and accessible players; say important visual results aloud. When sharing with Screendesk, use the recording’s Share link or a supported website embed and verify the intended viewer’s access.
Troubleshoot missing or unclear narration
| Problem | First check | Useful next step |
|---|---|---|
| Video has no voice | Microphone selection, mute state, and app/browser permission | Reconnect or reselect the input, then make a fresh test |
| Speech is faint or distorted | Microphone position and input level | Move closer without overloading the input; compare a new test |
| Echo or duplicated sound | Speaker playback and duplicate audio sources | Use headphones and test with one intended microphone source |
| Voice is present but app sound is missing | Whether application/system audio was selected separately | Use the recorder’s supported audio route and test both sources |
| Narration and picture disagree | Timing around the first mismatched action | Edit the section or retake it with a clearer pause |
| Preview sounds right but export is silent | Export format and included audio track | Export a short video test and play it outside the editor |
Use the microphone permission guide for input-access problems and the internal-audio guide for application sound. Changing one setting at a time makes it easier to identify what fixed the result.
Frequently asked questions
Do I need an external microphone?
No. Start with the microphone you have and review a test in a quiet space. Consider a different microphone only if the current setup does not produce understandable speech.
Can I add a voice over after recording?
Yes. Import the footage into a video editor, record or import the narration, align it on the timeline, and export a video with the audio included.
Is voice over the same as recording internal audio?
No. Voice over is the explanation spoken over the video. Internal audio is sound from the device or application. A recording can include either source or both when the tool supports them.
How long should a narrated screen recording be?
Use the time needed to explain one useful outcome. Split a long process into sections when viewers need to return to individual steps, and trim waiting that does not help them understand the task.
