The short version: use a proper screen recorder like OBS Studio, Camtasia or Loom, plug in a decent USB microphone rather than relying on your laptop’s built-in one, record system audio and mic audio on separate tracks, and fix your audio levels before you touch the visuals. Get those three things right and the rest is just practice.
I have recorded hundreds of screen demos over the past five years. Client onboarding walkthroughs, product demos for people I never meet, training videos for teams I have never met either. And the thing that kills 90% of them isn’t the screen recording. It’s the audio. Somebody’s fan is whirring, there’s an echo because they recorded in a tiled bathroom-adjacent home office (mine, for a while), or the mic picks up their keyboard clicking louder than their voice.
So let’s do this, in the actual order it needs doing.
Sort your audio before you touch your screen recorder
This is the bit nearly every guide gets backwards. They open with “choose your software” and bury audio three sections down as an afterthought. I do it the other way round because audio is what makes a demo feel professional, and bad audio is what makes people close the tab within 15 seconds. There is research on this that everyone in video quotes and it holds up in my own experience too: viewers forgive rough visuals far more readily than they forgive bad sound.
Here’s what I use, and what it costs:
- A Shure MV7 or Blue Yeti USB mic, both sit around $130 to $170
- A cheap boom arm to get the mic off the desk (desk vibration travels straight into a stand mic)
- A pop filter, which is a £6 bit of nylon mesh that stops your “p” sounds exploding
- Headphones while recording, so you catch problems live instead of finding them in the edit
If you’re recording on a laptop mic because that’s all you have, at minimum record in a room with soft furnishings. Bare walls and hard floors bounce sound and create an echo that screams “amateur” the second someone hits play. I once recorded a client demo in a rented office with a glass conference table and floor to ceiling windows and it sounded like I was talking into a bucket. Re-recorded it in my spare room with a duvet over the door and it was night and day.
Pick a screen recorder that captures audio on separate tracks
This is the technical detail most beginners miss and it will save your life in the edit. You want your system audio (any notifications, video clips playing, app sounds) on one track and your voice on a completely separate track. Why? Because if a notification pings mid recording, you can mute just that track without touching your voice.
OBS Studio (free)
OBS is what I use for most demos now. It’s free, open source, and built for this. You add a “Display Capture” source for your screen, an “Audio Input Capture” source for your mic, and an “Audio Output Capture” source for system sound. Set each to record to its own track under Settings, then Output, then Audio Track. It has a learning curve of maybe 20 minutes the first time. After that it’s five clicks and you’re recording.
Camtasia (paid, around $179 one-off licence)
Easier interface than OBS, records screen and audio in one go, and its editor is built into the same tool so you’re not exporting and re-importing between apps. Good for people who want fewer moving parts, worse value if you’re already comfortable editing in something separate.
Loom (free tier plus paid plans)
Loom is the quickest for informal demos, especially internal ones or quick client walkthroughs where polish matters less than speed. It records screen, webcam bubble and mic audio in one click and gives you a shareable link instantly. The trade-off is less control over audio quality and editing. I use Loom for a quick “here’s the answer to your question” video and OBS or Camtasia for anything going on a sales page or in a pitch deck.
ScreenFlow (Mac only, around $169)
If you’re on a Mac and want something between Loom’s simplicity and OBS’s control, ScreenFlow is worth the money. Clean interface, records multiple audio tracks, and its editor handles zoom and pan on screen recordings better than most.
The step by step I follow
- Close every app and browser tab you don’t need on screen, including anything with notification badges
- Put your phone on silent, in another room if you can
- Do a 10 second test recording, then play it back through headphones to check levels and check for hum or echo
- Record your mic and system audio on separate tracks
- Set resolution to 1080p at 30fps for most demos, only go to 4K if the demo needs fine detail visible (spreadsheet formulas, small UI elements)
- Record in short segments rather than one long unbroken take, three to five minutes at a time, so a mistake doesn’t waste 20 minutes of good footage
- Leave two seconds of silence at the start and end of each segment, it makes stitching in the edit far easier
A 1080p demo at 30fps runs roughly 1 to 2GB per hour of footage, which is manageable for most laptops and won’t choke your upload when you send it to a client. Jump to 4K and you’re looking at 4 to 6GB an hour, which is overkill for most screen content since nobody needs to see your cursor in ultra high definition.
The bit nobody wants to say out loud
Here’s something that will annoy the polish obsessives: a raw, slightly imperfect screen recording where you talk naturally often outperforms a heavily produced one. I have tested both for client onboarding, a scripted, edited, music bedded version and a rougher one where I just talked through the screen as if explaining it to a colleague. The rougher one had a longer average watch time both times I tried it. People can smell a script. They trust a demo more when it sounds like a real person figuring things out live, even with the odd “let me just” or a two second pause while you click somewhere. Don’t over edit the humanity out of it chasing broadcast quality nobody asked for.
That doesn’t mean record sloppily. It means stop treating every “um” as a crisis that needs six takes to fix.
Editing after the fact
Once you’ve got your raw footage with clean separated audio, the edit is mostly trimming dead air, cutting out the bit where you clicked the wrong tab, and adding a title card at the start. If you’re deciding what to edit in, I’ve written a proper breakdown on how to pick video editing software for professional results that covers what matters for this kind of work versus what’s just marketing from the software companies themselves.
A trick worth stealing: add captions even if the audio is perfect. A big chunk of people watch demos with sound off, especially on LinkedIn or in a Slack channel someone forwarded it into. Most editors, including Descript and CapCut, auto generate captions from your audio track now, so it’s a five minute job, not a rebuild.
Don’t just make one video
Once you’ve recorded a demo, with clean separated audio, you’ve created three or four pieces of content, not one. Pull the audio track alone and it’s a podcast style clip. Pull three key screenshots with your voiceover text and it’s a carousel post. I’ve gone through this in my piece on the best content repurposing tools in 2026, and it’s worth reading before you record, not after, because it changes how you structure the talking points during the demo itself.
A word on recording client calls versus recording demos
Worth flagging because people conflate these two things and they are not the same job. A product demo is something you script, control and choose to publish. A recorded client call is something happening live with another person who may or may not know it’s being recorded, and increasingly with an AI notetaker sitting in the background too. I wrote about the trust problem this creates in the AI notetaker problem, and the short version is: always disclose recording, always ask, and never assume the same casual recording habits from your demo setup are fine to use on a live client call.
Kit and tools worth knowing about
If you’re building out a proper recording setup on a budget, there are more free and low cost tools out there than most people realise, background noise removers, free stock sound libraries, free caption generators. I keep a running list of the lesser known ones in 50 websites you didn’t know existed, several of which are useful for exactly this kind of production work without paying for another subscription you’ll forget to cancel.
What goes wrong most often
In order of how often I see it ruin an otherwise good demo:
- Mic too far from the mouth, giving a thin, distant sound
- Recording with a fan or aircon running, which sits under the voice and becomes exhausting after two minutes
- Mismatched audio and video sync after editing, usually from exporting at the wrong frame rate
- Talking too fast because you’re nervous about the recording rather than the content
- No pause before clicking, so every click sounds abrupt and jarring on playback
Fix the first two and you’ve solved 70% of what makes a screen demo sound unprofessional, before you’ve even opened an editing timeline.
Frequently asked questions
Do I need expensive software to record screen and audio together?
No. OBS Studio is free and handles screen and separate audio tracks as well as most paid tools. Paid options like Camtasia and ScreenFlow are worth it mainly for the built in editor, not for recording quality itself.
Should I use my laptop’s built in microphone for a professional demo?
Avoid it if you can. A USB mic in the $100 to $170 range, like a Blue Yeti or Shure MV7, makes a bigger difference to how professional a demo sounds than any editing software will.
What resolution and frame rate should I record my screen at?
1080p at 30fps covers most demos and keeps file sizes manageable, roughly 1 to 2GB per hour. Only record at 4K if viewers need to see fine on screen detail like small text or formulas.
Should I record my mic and system audio on the same track or separately?
Always separate. If one track has a problem, a notification sound or a hum, you can fix or mute it without touching your voice track, which saves entire re-recordings.
Related reading: How Do You Record Your Screen for Free Using Open Source Software? and Building a Brand’s Voice: The Role of Audio Content in Business Strategy.
