Klaxon AI is a UK-based company that transforms the complex process of creating audio advertising into a five-minute task accessible to anyone. 

Founded in 2023 by former journalists Arup Biswas and Mark Woodward, the platform addresses the needs of three key markets: marketing agencies seeking to expand their service offerings, small businesses previously priced out of audio advertising, and influencers looking to promote themselves through new channels.

“We realized podcasts and audio adverts were services that could be offered to local and regional businesses, but the creation process was quite manual, complex, time-consuming, and very expensive—more expensive than small businesses could afford,” explains Arup, who serves as the CEO of Klaxon AI.

The company emerged from the founders’ experience in digital media operations at one of the UK’s largest newspaper groups, where they noticed an opportunity between the growing demand for audio content and the prohibitive barriers to its creation.

How the Technology Democratizes Audio Creation

Klaxon AI’s platform automates the audio production process through an interface that requires no specialized knowledge. Users begin by describing their business, after which the AI generates advertising scripts. They can then select from various AI-generated voices with different accents, ages, and genders, and choose background music that complements their message.

“You can have exactly the voice, exactly the music that you want. You can change the script,” Arup explains.

The platform also features multilingual capabilities. “If they just want the advertisement in English, fine. But if they want it in another language—Spanish, French, Mandarin, Urdu—they just click a button, pick the language they want, and it automatically translates it,” Arup notes.

Once satisfied with the advert, users can download it for a flat fee of £99, with no additional licensing or royalty fees.

Advertising Services

While the self-service platform represents Klaxon AI’s core offering, the company also functions as a full-service advertising agency. “We’re not just a tech company, we see ourselves as an advertising agency,” Arup explains.

Through partnerships with major radio station owners in the UK and podcast networks like Acast, Klaxon AI handles the entire process from ad creation through broadcast approval to airtime placement.

“We can say to businesses, ‘Where do you want your advert to be heard? The geography, and exactly who do you want to hear it?'” Arup explains. “They may say, ‘We want women business owners in London, aged 35 to 50, to be the only people to hear this advert.’ And because of that targeting option, we can make sure that only those people hear the advert.”

As Arup notes, this type of targeting, delivered primarily through connected devices like smart speakers, mobile phones, and gaming consoles, provides results that were previously impossible with traditional radio. “You know exactly how many people listen to it, and you know exactly where they were. You could target exactly the people that you want to reach and in the geography you want to reach,” he says.

Impact for Businesses and Creators

A healthcare provider struggling to recruit staff for a new care home saw precise results after using Klaxon AI to implement a targeted radio campaign in southern England, Arup shares.

“They saw a lot more applications to their website,” he explains. “So they saw a lot more people going to their website, applying for those jobs. That uptick was quite notable in terms of response rate.”

Another client that provides staffing for government institutions ran a three-month campaign targeting specific geographic areas. According to Arup, “The response rate has been the best response rate they’ve had.” 

Arup draws a connection between this success and recent research findings: “The Guardian and independent research company Tapestry Research found that podcast advertising was the most effective advertising around a few years ago. It goes into your ear and head, sticks, and triggers memory recall. It’s got more attention than television or online ads.”

For clients, the platform’s analytics provide visibility into campaign performance. Klaxon AI delivers detailed reports showing exactly how many people heard the advert, on which devices, at what times, and in which locations. “We can say 50% listen to it on a smart speaker, 20% listen to it on their phone, 5% listen to it on a games station,” Arup notes.

Image: Arup at the SXSW conference in Austin, Texas, March 2025

AI and Human Expression

Despite leveraging AI extensively, Arup maintains a nuanced view on technology’s role in creative fields. 

“Influencers and podcasts at the moment are very much driven by their own personality. It’s driven by their own quirks and their own humor, their own humanness,” he acknowledges. “I think there’s an element that AI would never be able to replicate, because how do you replicate me or you as AI?”

This philosophy positions Klaxon AI’s technology as a tool that handles the technical aspects of production while respecting the boundary between automation and genuine human connection. 

“We might be able to get the voice right, but it doesn’t mean it’ll get across all the different human elements of me or you,” Arup says. “I think it’s a good thing that AI does what it does, and it can do it fantastically well. For advertising, it’s absolutely fine.”

A Vision of a Complete Audio Ecosystem

Klaxon AI aims to develop a podcast creation system that will make podcast production as accessible as its advertising platform has made audio adverts. “With the podcast service, it’s aimed at businesses that have something like a newsletter or a regular blog, and they just want another mechanism to get it out there,” Arup explains.

Currently, the system focuses on single-voice podcasts rather than conversations, as AI technology isn’t yet advanced enough to create natural-sounding dialogues. The service will convert written content into engaging audio, complete with proper introductions and outros.

Beyond content creation, Klaxon AI plans to host these podcasts directly. “If the client doesn’t want to mess around with Spotify or Apple, they don’t need to,” Arup explains. “They’ll have a dedicated page on our website where all their podcasts will be hosted.”

The company’s three-year vision extends well beyond the UK. “We want to be an international company,” Arup says, highlighting South America and India as primary expansion targets due to their growing podcast listenership. “South America presents a really big opportunity because podcasts are huge over there and are growing faster than anywhere else.”

Ultimately, Arup envisions “a complete ecosystem that connects our advertisers with our podcasters and our podcasters to listeners,” implementing a YouTube-like revenue-sharing model where creators earn based on their popularity.

For Arup, the motivation behind Klaxon AI stems from the enjoyment of creating new solutions. “The biggest thing that excites me is we’re doing something new. We’re not a ‘me too’ business,” he says. “What excites me is pushing boundaries. I like the fact that we’ve got a vision of where we want to get to.”

He takes particular pride in building a company that’s making an impact without massive external funding. “We’re a relatively small UK company. We’re not from Silicon Valley, and we haven’t had millions of pounds of investment from external sources. We funded this all ourselves, and we’re making small waves at the moment, but that will change.”

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