Recording course videos has an editing problem. You know the drill: record a 20-minute lesson, spend 40 minutes cutting out pauses, trimming dead air, re-recording the section where you lost your train of thought. The recording is the easy part; the editing is what makes you procrastinate on publishing. Tella attacks this directly — its AI removes silences, detects mistakes, and lets you crop your screen recording in post-production. Record rough, let the AI clean it up, export a polished lesson. The company raised $2.1M specifically targeting course creators, and the tool reflects that focus.
What you’ll walk away with:
- Polished lesson recordings with AI-assisted editing
- Automatic removal of mistakes and dead air
- A recording-to-upload workflow that takes under 30 minutes
Why post-production AI changes the recording workflow
Most course creators I talk to have the same bottleneck: not recording, but editing. They'll record three takes of a lesson trying to get a "clean" version, when the first take was actually fine — it just had a few pauses and one stumble at the 8-minute mark. Traditional editing means importing into Descript or a video editor, finding those moments on a timeline, trimming them, and exporting. For a 20-minute lesson, that's 30+ minutes of post-production.
Tella's approach is different: record once, record naturally, and let the AI handle the cleanup. It's not a new idea — Descript pioneered text-based video editing. But Tella makes the specific edits course creators need (silence removal, mistake trimming, screen focus) automatic rather than manual. You're not editing a timeline. You're clicking a button.
Recording your first lesson
1. Choose your layout
Tella supports three recording modes: screen only, webcam only, and screen plus webcam (with the webcam as a floating circle or side panel). For most course content, screen plus webcam works well — students see what you're demonstrating and see your face, which builds the personal connection that drives completion. Our cohort-based courses on Ruzuku show 64.2% completion versus 48.2% for self-paced, and visible instructor presence is part of what makes that difference.
2. Record naturally
This is the mindset shift that makes Tella valuable: stop trying to record perfectly. Pause to collect your thoughts — the AI will trim it. Stumble over a word and restart the sentence — the AI will catch it. Show your full screen even though you only need students to see one window — you'll crop in post.
I'm not suggesting you wing it entirely. You still need a lesson plan, clear talking points, and a sense of structure. But the mechanical perfection — seamless delivery, no pauses, perfectly framed screen — that's now handled after the fact.
3. Apply AI editing
After recording, Tella's editing panel gives you several AI-powered tools:
- Silence removal with three intensity levels. "Natural" trims long pauses while keeping your natural rhythm. "Fast" cuts all pauses to a consistent short gap. "Faster" removes nearly all dead air for a rapid-fire delivery. I'd recommend starting with Natural — the other modes can make you sound unnervingly efficient.
- Mistake detection flags moments where you appear to restart a sentence or correct yourself. Review each flag and accept or dismiss. It catches most obvious stumbles but misses subtle ones.
- Screen crop lets you zoom into specific areas of your screen recording after the fact. Showed your whole desktop but only needed the browser? Crop to just the browser. This alone saves a re-recording for many people.
4. Review and export
Watch the edited version all the way through. The silence removal usually works well, but check for spots where it cut too aggressively — sometimes a pause is intentional, especially after a question or before a key point. You can restore any trimmed section with a click. Export in your preferred resolution and upload to your course.
Prompts to try
Lesson recording plan
"I'm recording a 15-minute screen-share lesson about [topic]. Create a recording plan with: an opening hook (15 seconds), 3-4 main sections with talking points for each, transitions between sections, and a closing action item. Keep it as bullet points I can glance at while recording — not a script."
Post-recording review checklist
"Create a quality checklist for reviewing an AI-edited course video before publishing. Include checks for: audio clarity, removed pauses that should've stayed, cropping that hides important UI elements, pacing that feels too fast or robotic, and the overall energy of the lesson."
Tella vs. Loom: which is right for you?
I get asked this constantly, so here's my take. Loom is excellent for quick, casual screen recordings — student feedback, team updates, walkthrough demos. It's fast to start, fast to share, and the viewer experience is clean. If most of your recordings are one-off communications rather than course content, Loom is the better choice.
Tella is built for content you'll publish and reuse. The AI editing features — silence removal, mistake detection, screen crop — are designed for the "record once, publish permanently" workflow of course creation. If you're producing lessons regularly and spending significant time on post-production editing, Tella will save you more hours per week.
Plenty of course creators use both: Tella for lessons, Loom for student communication. That's a reasonable split.
The human layer
AI editing makes your videos technically cleaner, but it doesn't make them pedagogically better. A lesson with all the silences removed and all the mistakes trimmed can still be a bad lesson if the explanations are unclear, the structure is confusing, or the pacing doesn't give students time to absorb what you're teaching.
In fact, I'd argue some "imperfections" are pedagogically valuable. A natural pause after a question gives students a moment to think. A brief tangent where you share a personal experience builds connection. The moment where you correct yourself and say "actually, let me explain that differently" models real thinking. Use Tella's AI to remove the dead moments — the ums, the long silences while you click around looking for the right tab. But don't let it sand away the human texture that makes your teaching yours.
What it gets wrong
- "Faster" mode can make you sound robotic. Removing all pauses creates an unnatural cadence that's tiring to listen to for more than a few minutes. Stick with "Natural" for lessons over 10 minutes. "Fast" works for short, punchy tutorials under 5 minutes.
- Mistake detection misses context. The AI flags sentence restarts, but it doesn't know whether you restarted because you misspoke or because you deliberately rephrased for clarity. Review every flag — accepting all of them blindly can remove intentional self-corrections that actually improve the teaching.
- Screen crop can hide important context. If you crop to show just one application window, students lose the context of what else is on your screen. For tutorials where the file system, other tabs, or background applications matter, cropping too tight can make the lesson harder to follow.
- It doesn't fix bad audio. Tella edits the timeline, not the audio quality. If your recording has echo, background noise, or mic distortion, those remain. Clean up audio quality separately using Descript's Studio Sound or similar before running Tella's AI editing.
Related guides
- AI Video Editing with Descript — a different approach to AI-assisted editing
- Recording Course Lessons with Loom — when quick, simple screen recording is enough
- Improving Audio Quality with Descript Studio Sound — fix audio issues before or after recording
- Building Your AI Course Workflow — where Tella fits in the full production pipeline
Now bring it to life
Record your next lesson in Tella without worrying about perfection. Pause when you need to, restart a sentence if it comes out wrong, show your full screen even if you only need part of it. Then apply the AI editing — Natural silence removal, review the mistake flags, crop your screen — and see how much time you save compared to your usual editing workflow. Upload the finished lesson to Ruzuku and have it live for your students in minutes, not hours.