How do I create Audio Ads without an agency?

Learn how to write, voice and produce a radio or podcast advert yourself - the four parts of every audio ad, the licensing traps to avoid, and when an agency is still worth it.

Introduction

Most business owners assume that making a radio or podcast advert means hiring an agency. For decades, that was true. Studios, producers, voice artists and music licensing all sat behind an agency relationship, and that relationship came with a retainer.

That has changed.

👉 You can now write, voice and produce a broadcast-quality audio advert yourself – often in under an hour.

This guide explains what an agency actually does, what you genuinely need to replace, and how to do it without one.

1. Understand What an Agency Actually Does

Before you replace something, it helps to know what it does.

A Traditional Agency Handles

• Script writing and concept

• Casting and booking a voice artist

• Studio recording time

• Music selection and licensing

• Mixing and mastering

• Submitting the advert for clearance

• Booking the media

Each of those is a real job. But most of them are now available as a service you can buy directly, or a tool you can operate yourself.

👉 The value an agency adds is coordination, not magic.

2. Know the Four Parts of Every Audio Advert

Every radio or podcast advert, however it is made, comes down to four things:

• Script – what is said

• Voice – who says it

• Music – what plays underneath

• Mix – how the three are balanced

If you can produce those four elements to a decent standard, you have an advert.

👉 Everything else is process.

3. Write the Script Yourself

This is the part business owners most often outsource, and the part they are usually best placed to do. You know your customers and your offer better than any copywriter.

Keep It To Length

• A 30-second advert is roughly 75 words

• A 60-second advert is roughly 150 words

• Read it aloud and time it – always

What a Working Script Contains

• One clear message, not three

• Your business name early, and again at the end

• A single action for the listener to take

• Words that sound natural spoken, not written

👉 If you stumble reading it aloud, the listener will stumble hearing it.

4. Choose a Voice

Voice is what makes an advert sound professional or amateur. There are three routes.

Your Options

• Hire a voice artist – highest quality, typically the largest single cost

• Record it yourself – cheapest, but needs a decent microphone and a quiet room

• Use an AI voice – fast, consistent, and now close to indistinguishable for most commercial scripts

For most small businesses, recording it yourself is a false economy. Background noise, room echo and inconsistent levels are immediately obvious on air.

👉 Listeners forgive a simple advert. They do not forgive a badly recorded one.

5. Add Music – And Check the Licence

Music is where self-produced adverts most often go wrong, and the problem is rarely how it sounds.

The Licensing Trap

• Music from streaming services cannot be used in advertising

• "Royalty-free" does not always mean cleared for broadcast

• Some licences cover online use but not radio

• Using unlicensed music can mean your advert is pulled

Whatever route you take, make sure the music you use is licensed for broadcast advertising, and that you can prove it.

👉 Always confirm your music is rights-cleared for broadcast, not just free to download.

6. Check the Rules Before You Broadcast

Radio advertising in the UK is regulated. Adverts are checked before they air, and claims need to be substantiated.

Common Reasons Adverts Are Rejected

• Unsupported superlatives such as "the best" or "the cheapest"

• Price or offer claims without conditions

• Regulated sectors such as finance, health and gambling

• Missing terms where an offer is time-limited

This applies whether an agency made your advert or you did.

👉 Write claims you can evidence.

7. Use a Platform That Handles the Production

This is where the agency model has genuinely been replaced rather than just unbundled.

AI audio advertising platforms now combine the script, voice, music and mix into a single process. You provide the brief or the script, and the platform produces a finished advert.

What to Look For

• Multiple versions to choose from, not one take

• A choice of voices and music beds

• The ability to edit the script and regenerate

• A rights-free file you own outright

• No ongoing licensing fees

👉 The output you want is a finished MP3 you can use anywhere.

When You Might Still Want an Agency

Doing it yourself is not always the right answer.

An agency still earns its fee when:

• You need a sustained multi-channel brand campaign

• Your sector is heavily regulated

• You are buying significant national airtime

• You want strategic planning, not just production

For a local business running a focused campaign, that overhead is usually unnecessary.

👉 Match the cost of the process to the size of the campaign.

Creating Your Advert With Klaxon

Klaxon was built for exactly this. You enter a brief or your own script, and the platform generates three 30-second adverts, each with a voice and music track. You can change the voice, change the music, edit the script and regenerate until it sounds right.

• Creating and previewing your advert is free

• You pay £49 + VAT only when you download

• The file is a rights-free MP3 you own

• There are no ongoing licensing fees

If you would rather someone handled it for you, Klaxon also offers a managed service that covers script, production and campaign delivery.

👉 You do not need an agency to make a good audio advert. You need a script, a voice, music you are allowed to use, and somewhere to put it.

Create your own audio advert or book a 15-minute call to talk it through.