Build a Stunning Promo Video in 10 Minutes Using AI

Step-by-Step Guide: Creating a Promo Video with AI (in Minutes)

Let’s dive into the workflow. Below are the steps to create your promo video from scratch. Follow these, and you’ll have a polished video ready to share before you know it:

Step 1: Plan Your Video and Write a Short Script

Every great promo starts with a clear goal and message. Spend a couple of minutes defining what you want to promote (a product, service, event, etc.) and the key point you want viewers to remember. Then, quickly write a script of about 50–100 words (roughly 30-60 seconds when spoken). Keep it short and impactful – attention spans are limited, and shorter videos (under a minute) tend to get the best engagement. Focus on the value proposition: what problem do you solve or what benefit will the customer get? Use a friendly, conversational tone as if speaking directly to a customer.

Tip: Not a confident writer? Jot down bullet points first, then turn them into 2-3 brief sentences. You can also use an AI writing assistant to polish your script, but make sure it sounds authentic in your voice. Remember, the script will be spoken by an AI voice or avatar, so read it aloud to ensure it sounds natural and enthusiastic.

Step 2: Create a Voiceover with MurfAI

With your script ready, it’s time to generate the voiceover. MurfAI is a fantastic AI text-to-speech tool that produces lifelike voiceovers in seconds. Instead of spending hours recording your own voice (or hiring a voice actor), Murf lets you choose from over 100+ realistic AI voices in multiple languages and accents.

How to use MurfAI: Simply paste your script into Murf’s editor, and pick a voice that fits your brand’s personality – for example, a cheerful female voice, a deep warm male voice, or even different accents if you’re targeting specific locales. You can adjust the tone, pace, and pronunciation as needed. Murf’s interface is intuitive: you’ll see your text and can preview how each voice reads it before finalizing. In a click, Murf generates the voiceover audio. It usually takes less than a minute for a short script. Once you’re happy with it, download the audio file (MP3) to your computer.

[Alt: MurfAI studio interface showing a text script input and a selection of different AI voice options]

Why MurfAI? For busy entrepreneurs, MurfAI is a lifesaver – it gives you a high-quality narration without any recording equipment. You can even experiment with different voices or languages instantly. For example, you might create one voiceover for your main promo and another in a different accent or language for a specific market, all in a few minutes. Murf handles all the voice acting, so you can focus on the message.

Step 3: Generate Video Content with Synthesia

Now that you have a voiceover, let’s create the video visuals. Synthesia is an AI video generator that can turn your script into a video with a talking avatar (AI presenter) – no cameras or actors needed. This is perfect for making your promo feel professional and human without hiring a spokesperson.

There are two ways to use Synthesia for our workflow:

• Option A: Use Synthesia’s built-in text-to-video. You can paste your script in Synthesia and select an AI avatar to speak it. Synthesia has over 125+ diverse avatars (presenters) to choose from – different ages, ethnicities, professional or friendly appearances – so pick one that suits your brand. It also offers a variety of voices to narrate your script in a natural tone. Essentially, Synthesia will handle both the visuals and the voice automatically. (If you went with this option, you might not need the MurfAI voiceover from Step 2, as Synthesia can generate the speech. However, many users still use Murf for a wider voice selection or specific vocal style, then use Synthesia just for the avatar video. More on integrating a custom voice in a moment.)

• Option B: Use your MurfAI voiceover in Synthesia. If you prefer the voice you created with MurfAI, Synthesia allows you to upload an audio file instead of using its own voices (note: this feature may require a certain plan). The AI avatar will lip-sync to your provided voiceover. This way, you get Murf’s voice with Synthesia’s talking presenter. It’s an extra step but still very quick – just upload the MP3 and align it with the avatar in the Synthesia studio.

Creating the video: Log in to Synthesia and click “New Video”. You can start from a blank canvas or use one of Synthesia’s pre-designed templates. For a promo video, Synthesia’s library has templates for marketing, product promos, and more, which already include dynamic layouts and text placeholders. Using a template can save you design time (the visuals will look polished out-of-the-box). Select a template that you like – you can always tweak colors, images, and text later to match your brand.

Next, paste your script into the script box. If you’re using an AI avatar to speak, choose your avatar from the menu (you can also select the voice/accent if using Synthesia’s voice). Position the avatar on the scene as you like – for example, you might have them appear on one side with your product images or bullet points on the other side. You can add your background: solid color, an image of your product, or any graphic that fits. Synthesia also lets you add text on screen, so you can highlight a tagline or call-to-action within the video visually.

If you have multiple points, you can split your script into a couple of short scenes (e.g., Scene 1: introduce problem, Scene 2: introduce solution/product, Scene 3: call-to-action). Using the template’s scene layouts, drop in any additional images or screenshots you want to show. For example, a tech startup might include a screenshot of their app; a bakery might show pictures of delicious cupcakes while the avatar talks. Upload your logo to the corner for branding (Synthesia’s editor allows adding an image overlay).

Finally, if you have a voiceover file from Murf (Option B), upload it and sync it with the avatar. Otherwise, double-check the script text for any tricky pronunciations (Synthesia has a pronunciation tool if needed). Everything looks good? Click “Generate Video.” Synthesia’s AI will then produce your video. In a few minutes (often less for a short video), you’ll have an MP4 video of your avatar delivering the script, ready to download.

[Alt: Synthesia video editor screenshot with an AI avatar preview on the right and the script and settings on the left panel]

This entire process in Synthesia can easily be done in 5 minutes or less, especially if you used a template. It’s practically point-and-click. The result: a professional-looking video with a spokesperson presenting your message, without having to film anything.

Step 4: Edit and Personalize with Descript

At this stage, you have the main components of your promo video: visuals (from Synthesia, possibly including audio) and a voiceover (from MurfAI if used separately). Now, to make sure the final video is polished and perfectly tailored, we’ll do a quick edit using Descript. Descript is an AI-powered video and audio editor that makes editing as simple as editing a document. It’s incredibly useful for integrating content, adding captions, trimming, and more – all very quickly.

Why not skip editing? You might be thinking, if Synthesia already gave me a completed video, do I really need Descript? While you could use the Synthesia video as-is (and if it’s spot on, great!), Descript offers additional fine-tuning options that can elevate your promo further:

• Combine multiple clips or assets: If you created more than one video segment (say an intro with an avatar and an ending scene with your product), or if you have any real footage or screenshots to include, Descript lets you drag and drop to arrange them on a timeline.

• Add subtitles automatically: Descript will transcribe your video audio to text in seconds. You can then overlay this as captions in your video with one click, which is great for social media (many people watch videos on mute, so captions improve engagement).

• Trim or remove any fluff: Because Descript shows your narration as text, you can delete any word or sentence from the transcript, and it will cut that part out of the video seamlessly. For instance, if the AI voice took a long pause or mispronounced a word and you’ve corrected it with a re-generated clip, you can remove the unwanted bit easily.

• Incorporate background music or intro/outro: You can import a background music track and adjust its volume under the narration. A subtle music bed can make your promo more emotive. Descript lets you drag audio files in and handles ducking (lowering music when voice is on) if needed.

• Add visuals or text overlays: You can insert additional images (like product photos or charts) at specific moments, or add text overlays (like a final call-to-action text or a pricing info pop-up). Descript’s scene feature lets you treat each paragraph or sentence as a scene, where you can attach visuals to it, very similar to editing a slide deck.

How to use Descript quickly: Open Descript and create a new project. Import the video you got from Synthesia (just drag the MP4 in). If you only have a voiceover from Murf and maybe some images or clips, import the voiceover MP3 and those visuals instead – you can actually create a video from scratch in Descript by pairing the audio with images (Descript will let you set the image as a background while the audio plays, turning it into a video). In our case, assume we have the Synthesia video ready; drop it in. Descript will automatically transcribe the speech in the video to text. You’ll now see the transcript of your promo video on the screen. Play the video to review it. If you notice any minor issues (maybe the AI mispronounced your product name slightly or you want to cut a line), simply edit the text – for example, fix the spelling of the product name in transcript to the correct word and use Descript’s Overdub or corrector to tweak the audio, or highlight and hit delete to remove a sentence entirely. It’s that easy: removing text removes that part of the video/audio.

Next, use the Caption feature to add subtitles. Style the captions with your brand colors and a clean font (Descript provides style options). Position them at the bottom. Now anyone watching will get the message even with sound off.

If you want a background music track, click “Add new track” and import the music (Descript has some stock music or you can use your own royalty-free music file). Lower the music volume so it doesn’t overpower the voiceover (around -20 to -30 dB is a good start, Descript has volume controls).

Lastly, add any final branding elements: perhaps your logo in the corner (you can add an image overlay in Descript’s composition timeline) or a closing title card. For example, you might want to end the video with your company name and website URL displayed – you can create a quick text screen in Descript or have the last scene from Synthesia template include that. If you need to adjust the timing of scenes, just drag the clips on the timeline or split clips as needed (Descript’s UI is user-friendly for cutting and moving sections).

Within a few minutes of editing, you should have a nicely polished promo video. Use the preview to make sure audio levels are good and everything flows. Then hit Export -> Video, choose the resolution (720p or 1080p for most cases; Descript allows up to 4K if your visuals support it). Exporting will take maybe a minute or two. And voilà – your final promo video is ready to share with the world!

One more neat Descript trick: If you realized you forgot to mention something in the script, you can use Descript’s Overdub feature (which can clone voices) to add a word or line without re-recording. It might be overkill for a short promo, but it shows how AI in Descript simplifies editing tasks that normally require a lot of manual effort.

Step 5: Publish and Share

With your video complete, put it to work! Upload the promo video to your website, social media pages, YouTube channel, or email campaigns – wherever your audience will see it. A good practice is to accompany the video with a short post or caption inviting viewers to take action (visit your site, sign up, etc.). Thanks to the AI tools, you spent less than 10 minutes creating content that can potentially reach thousands. Going forward, you can update or customize your promo video anytime just by tweaking the script or visuals using the same tools – a process much faster than reshooting a live video.

Give yourself a pat on the back: you just built a compelling promo in record time! Now, let’s explore each of the tools in a bit more detail and see how they each played a role in this streamlined workflow.

AI Tool Integration: How Each Tool Supercharges Your Workflow

In our step-by-step guide, we introduced three AI-powered tools – Synthesia, MurfAI, and Descript. Each serves a specific purpose and solves common challenges in video creation. Here’s a closer look at how each tool helps entrepreneurs and small businesses create videos quickly:

Synthesia – AI Video Creator (Visuals)

Synthesia is an AI video generation platform that replaces the need for a camera, studio, or on-screen actors. It uses AI avatars to present your content. You simply provide text, and Synthesia outputs a video of a realistic presenter speaking your words. The key benefits for your promo video:

• No Filming Required: You don’t have to be on camera (great if you’re camera-shy or working remotely) and don’t need to hire actors. The AI avatar is your spokesperson, available 24/7.

• Professional Look in Minutes: Synthesia offers templates, backgrounds, and on-screen graphics, so even without design skills, your video looks professionally crafted. It’s perfect for marketing videos, product demos, how-tos, or any promo where a talking head or narration is useful.

• Multilingual & Global Reach: Want to target international audiences? Synthesia’s avatars can speak in 140+ languages. For example, you can get the same video generated in Spanish or French by just switching the script text and voice – hugely beneficial for global SMBs.

• Consistency and Easy Updates: Need to change a pricing detail or update the video later? Just edit the text and regenerate. The avatar will present the updated script exactly the same way, ensuring consistency across versions. This agility is something traditional video shoots can’t match.

Overall, Synthesia solves the visual content creation problem – you get a human-like presenter and engaging visuals with almost zero effort. It’s like having a virtual video production team member who never gets tired. For an entrepreneur, that means you can create marketing videos on the fly, for any idea, without scheduling a shoot.

MurfAI – AI Voiceover Generator (Audio)

MurfAI focuses on the audio aspect of your video – specifically, voiceovers. A voiceover sets the tone of your promo; a great voice can make your message more persuasive and credible. Not everyone likes recording their own voice, and hiring voice talent for each short video can be impractical for a small business. MurfAI addresses this by providing:

• Ultra-Realistic Voices: Murf’s AI voices sound remarkably natural, with proper intonation and emotion. They have over 120+ voices across young, mature, male, female, different accents, and even different speaking styles (e.g., cheerful, authoritative). You can find a voice that aligns with your brand image. For instance, a friendly startup might choose a warm and upbeat voice, while a B2B business might prefer a confident, professional tone.

• Quick and Easy Script-to-Speech: Just type or paste your script and in one click you get a narration. You can adjust speed, add pauses, or emphasize words through Murf’s editor to make it just right. This gives you director-level control over the narration without needing audio editing expertise.

• Multi-language Support: Like Synthesia, Murf covers numerous languages. If you need a promo in another language, Murf can generate the voiceover in that language with native-speaker quality. This is fantastic for localizing your marketing content.

• Cost and Time Efficient: Instead of spending hours to record (and re-record) audio, Murf delivers it in seconds. Plus, you avoid the cost of recording equipment or hiring talent. The free trial lets you experiment, and the paid plans are far cheaper than hiring voice actors for each project.

In our workflow, MurfAI provided the voice that carries your message powerfully. Even if you use Synthesia’s voices sometimes, having Murf gives you more options. For example, you might use Murf to create voiceovers for other types of content too (like a podcast intro, product tutorial voiceover, or phone system greeting). It’s a versatile tool for any audio needs. And for your promo video, Murf ensured you got a top-quality narration without the hassle – a huge win for small business owners who are juggling many tasks.

Descript – AI Video Editor (Editing & Polish)

Descript is the Swiss army knife that brings everything together and makes editing accessible. Traditional video editing software can be complex (think Adobe Premiere or Final Cut, with their steep learning curves). Descript turns editing on its head by using AI and a text-based approach:

• Edit Video by Editing Text: Descript transcribes your video, so you edit the script to edit the video. This means no more hunting through timeline waveforms to cut out an “um” or to trim a scene – you just delete the words from the transcript or copy-paste to reorder, and Descript edits the actual video accordingly. It’s incredibly intuitive, especially for those who are not professional video editors.

• Fast Polishing: With features like auto-remove filler words (e.g., “uh,” “um”) and shortening silences, Descript can clean up a rough recording instantly. For AI-generated content like our promo, you mostly use it to add polish: ensure pacing is right, add subtitles, and mix in other assets. It’s all done through a user-friendly interface in minutes.

• Overdub and AI Magic: Descript’s Overdub can clone a voice (with consent) or use stock voices, which is an AI feature that lets you generate new voice lines by typing text. While for our use case you likely rely on Murf for voice, Overdub could let you fix a small error or add a last-second tagline without redoing the whole audio. It’s another example of AI saving you time.

• Collaboration and Version Control: If you have a small team, Descript makes it easy to collaborate. Because everything is in a script-like document, team members can comment or edit text, much like Google Docs but for video. This reduces miscommunication – a team member can literally suggest “let’s cut this sentence” by highlighting it in the transcript.

• All-in-One Editing: You can use Descript for recording voice or screen, making it not just an editor but also a creation tool. For instance, if you wanted to add a quick screen capture of your website in the promo, you could record it via Descript and drop it into the project seamlessly.

For an entrepreneur, Descript means you don’t need to outsource video editing or struggle with complicated software. You have the power to fine-tune your video in a straightforward way. It ensures the final output looks and sounds professional. By integrating Descript in the workflow, you maintain control over the content and can iterate quickly. Together with Synthesia and Murf, it completes the toolkit: Synthesia handles visuals, Murf handles voice, and Descript handles final editing – a trifecta of AI tools that dramatically accelerates video production.

Use Case Example: A Real-World Scenario

Let’s paint a picture of how all these pieces come together in a real-world scenario. Suppose Jane is the founder of a small online boutique. She wants to create a promo video for her new summer collection launch. Jane has a full plate running her business and a limited marketing budget – hiring a videographer or spokesperson isn’t in the cards. Here’s how Jane uses AI to get her promo video done in 10 minutes:

Goal: Announce the summer collection and encourage viewers to visit her website to check out the new arrivals.

• Minute 1-2: Script Writing – Jane quickly writes a 60-word script: an upbeat greeting, a line about the exclusive summer styles now available, and a call-to-action (“Visit our site to explore the Summer Collection and use code SUMMER for 10% off!”). She keeps the tone excited and on-brand – her boutique is fun and vibrant, so she makes sure that comes across in the wording.

• Minute 3: Voiceover with MurfAI – Jane opens MurfAI, pastes her script, and selects a bright and friendly female voice that matches her brand’s vibe. She listens to a quick sample and loves it. One click and Murf generates the full voiceover. She downloads the audio file in a few seconds. The voice sounds like a real person full of enthusiasm, which is exactly what she wants. This step took her about one minute.

• Minute 4-7: Video Creation with Synthesia – Next, Jane heads to Synthesia. She chooses a template designed for product promos which has a colorful background and text animations. She selects an AI avatar – in this case, a relatable, cheerful avatar who will appear as a spokesperson. She types in the same script (since she wants the avatar’s lips to sync with the voiceover). Jane uploads a couple of product photos (some shots of sundresses and summer outfits) to show during the video alongside the avatar. She positions her logo at the top-right for branding. Instead of using Synthesia’s voice, she uploads the MurfAI audio she generated (Jane has access to this feature). Synthesia aligns the avatar’s lip movements with the audio perfectly. In the preview, it looks like the avatar is really speaking in the friendly voice Jane chose. Satisfied, Jane clicks “Generate.” By minute 7, Synthesia has produced the video and she downloads the file.

• Minute 8-9: Editing with Descript – Jane pulls the Synthesia video into Descript for final touches. Descript transcribes the video instantly. She quickly adds captions (since she plans to post this on Instagram where many watch without sound). The text from the transcription populates the captions; she tweaks a word or two for perfect spelling and styles the caption font to match her brand theme. Jane also decides to add a catchy background music track – a free upbeat tune that complements the summer feel. She drags it into Descript, trims it to the 30-second length of her promo, and sets it at a low volume under the narration. Everything looks good in the preview – the avatar is talking, the product images show up at the right time, the voiceover is clear, music is subtle, and captions are synced. In Descript, she exports the final video.

• Minute 10: Upload and Share – By the 10-minute mark, Jane has her promo video ready. She quickly posts it to Instagram and Facebook with a short caption and the promo code details. She also embeds it on her website’s homepage to greet visitors with the new collection announcement. Done!

Result: In just 10 minutes, Jane produced a lively, high-quality promo video featuring an AI presenter showcasing her products, with a professional voiceover and music. She didn’t need any camera, microphone, or editing expertise. Her total out-of-pocket cost was minimal (just her subscription to the AI tools, which is far less than hiring a videographer for even an hour). The video starts getting views and driving traffic to her site within hours, and Jane can easily make more videos like this for future promotions (autumn collection, holiday sales, etc.) by reusing the script and templates.

This scenario shows how a small business owner can leverage AI tools practically. Whether you’re a boutique owner like Jane, a startup founder, a real estate agent showcasing a property, or a SaaS entrepreneur explaining your software – the process is similar and equally efficient. You focus on your message, and let AI handle the tedious production bits. The outcome is a polished promo video that levels the playing field with larger competitors’ marketing, achieved in a fraction of the time.

Start Automating Voiceovers with MurfAI Today

(Above: Don’t spend hours recording audio – MurfAI can generate a pro-quality voiceover for you in seconds.)

Comparison Table: Synthesia vs. MurfAI vs. Descript

To help you quickly evaluate these three AI tools, here’s a side-by-side comparison of their Key Features, Pricing, Use Cases, and Free Trial availability. This will give you a snapshot of what each tool offers and how they differ:

(Pricing noted is approximate for base plans on a monthly basis; discounts often available for annual billing. Be sure to check each tool’s website for the latest pricing details and offers.)

As you can see, Synthesia shines in generating the visual aspect of videos with AI presenters, MurfAI specializes in producing high-quality audio voiceovers, and Descript is all about easy editing and post-production. They complement each other well – using them together covers the full spectrum of creating, voicing, and editing a video. Depending on your needs, you might use one tool more than the others (for example, some may use Synthesia alone to get a finished video, or just Murf + Descript to add voice to existing footage). But knowing what each offers helps you pick the right tool for the right task.

All three tools offer some form of free trial or free plan, so you can try them out risk-free. We recommend testing each one individually to get a feel for how they can fit into your workflow. Once you’re comfortable, you’ll have an automated pipeline for video content creation at your fingertips!