How to Choose the Right Voice for an Ad: A Guide by Brand, Audience and Platform
Should your ad use a female or male voice, a young or mature one, an energetic or calm one? A guide to choosing an ad voice by target audience, brand personality and platform, and to A/B testing it.
Voice Go Team4 min read
Short answer
When choosing a voice for an ad, answer three questions: What is your brand personality (trustworthy, playful, premium, friendly)? Who is your target audience? On which platform and for how many seconds will the ad run? You find the best answer by testing, not guessing: produce the same script with 2–3 different voices, run them on a small budget and choose the winning voice based on view-through, click-through and conversion rates.
In advertising, the voice is as powerful a brand element as the visuals. The same script read by a different voice evokes a completely different feeling: trust, excitement, warmth or luxury. So how do you choose the right voice for your brand?
3 questions that determine your voice choice
1. What is your brand personality?
Imagine your brand as a person. How would it speak?
| Brand personality | Voice characteristics | Example industries |
|---|---|---|
| Trustworthy and corporate | Calm, clear, mid-to-low pitch | Banking, insurance, healthcare |
| Energetic and fun | Fast, bright, smiling tone | Food, beverages, apps |
| Premium and exclusive | Slow, deep, deliberate | Automotive, fashion, real estate |
| Warm and approachable | Natural, conversational tone | E-commerce, local brands |
| Young and dynamic | Fast, relaxed, contemporary language | Technology, gaming, social media |
2. Who is your target audience?
The voice should have a tone your audience feels they belong to. An overly formal voice creates distance in an ad for a mobile app aimed at young people, while a fast, slangy tone won't build trust in an ad for a retirement product.
3. Where will the ad run, and for how long?
| Platform | Typical length | Voice recommendation |
|---|---|---|
| TikTok, Instagram Reels | 6–30 sec | Energetic, grabs attention in the first 2 seconds |
| YouTube bumper | 6 sec | A single message, very clear and fast |
| YouTube in-stream | 15–30 sec | Main message in the first 5 seconds, before the skip |
| Radio | 15–30 sec | No visuals; the voice carries everything, very clear diction |
| In-store announcement | 10–20 sec | Understandable in a noisy space, moderate pace |
Writing ad copy for the voice
Even the best voice can't save a badly written script. When writing ad copy:
- Set the hook in the first sentence. A short, clear opener such as "The summer sale is on!"
- Focus on one message. Don't try to explain three different benefits in a 15-second ad.
- End with a call to action. "Download the app now", "Order today".
- Calculate the length. Write roughly 35–40 words for 15 seconds and roughly 70–80 words for 30 seconds.
Test, don't guess: A/B testing your ad voice
The most reliable way to find the right voice is to test. AI voiceover makes this very easy:
- Produce the same script with 2–3 different voices. For example a female and a male voice, or an energetic and a calm one.
- Keep visuals, music and targeting the same. The voice should be the only thing that changes.
- Run them on a small budget. Give each version an equal budget.
- Compare the metrics: view-through rate, click-through rate, conversion rate.
- Use the winning voice for the rest of the campaign.
With traditional voiceover every version means a separate recording and budget; with Voice Go you can produce the same script with different voices in minutes.
The expression setting: same voice, different emotion
The Expression setting in Voice Go Studio lets the same voice give a calmer or a more emotional read:
- Toward consistent: corporate messages, informational ads
- Balanced: most product ads
- Toward expressive: campaign announcements, upbeat social media content
You can also test the same voice with different expression settings.
Example: a 15-second e-commerce spot
The summer sale is on! Enjoy up to fifty percent off selected items. Download the app now so you don't miss out, and get your order delivered the same day.
You can hear the Chloe, William and Amelia voices on our ads solution page. Hearing which voice suits your brand is far more instructive than reading about it.
Checklist
- Have you defined your brand personality in 2–3 words?
- Have you considered your audience's age and expectations?
- Is the script the right length for the ad?
- Does the first sentence grab attention?
- Have you tested at least two voices?
- Have you added captions?
Frequently asked questions
Is a female or a male voice more effective in ads?
There's no single right answer; the effect depends on the product, the audience and the tone of the message. Rather than deciding on assumptions, the most reliable approach is to run the same ad with two voices and compare the results.
How many words fit in a 15-second ad?
At a comfortable, clear pace, about 35–40 words fit in 15 seconds. Squeezing in more information speeds up the delivery and reduces clarity; simplify the message instead.
Do social media ads need voiceover?
Many users watch videos with the sound off, so captions are essential; but for viewers who turn the sound on, voiceover strengthens the message. Best practice is to use voiceover and captions together.
Should I use the same voice in all my ads?
If brand awareness is the goal, yes; a consistent voice becomes associated with your brand over time. For campaigns aimed at different audiences, you can try different voices for sub-brands or specific campaigns.