Audio Has All the Ingredients of CTV's Success Recipe

Connected TV did not become a major advertising channel simply because consumers started streaming more content. By the time advertisers fully embraced CTV, streaming platforms could already boast millions of users. 

What transformed CTV into a performance channel was infrastructure. Programmatic buying became easier. Identity frameworks matured. Measurement improved. Advertisers gained confidence that they could reach audiences efficiently and understand the business impact of their investments.

Digital audio is on the same path. The critical pieces – audience, content, and much of the infrastructure – are all falling into place. 

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The First Ingredient: Massive Consumer Attention

Every successful advertising channel starts with audience attention and podcast listening has become a mainstream behavior. According to Edison Research, Americans now spend more than 773 million hours with podcasts every week. Streaming music has achieved massive scale as well, with global listeners averaging roughly 20 hours per week.

Digital audio also occupies moments that many other digital channels struggle to reach effectively. Podcasts and streaming music have captured consumers while commuting, exercising, working and completing household tasks. These environments create opportunities to engage audiences while they are away from home and highly engaged. 

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The Second Ingredient: AI-Powered Content Intelligence

One ingredient uniquely important to audio's future is content intelligence.

Millions of hours of podcasts, music, radio streams and other forms of audio content are created every year. That abundance creates opportunity, but it also creates complexity. Human review alone cannot effectively categorize, organize and activate content at this scale. The industry's discussion around artificial intelligence often focuses on content creation. However, equally important is AI's ability to understand content that already exists.

‍Every month, Audion's AI analyzes the equivalent of more than 100 years of newly published audio and video content. It identifies themes, topics, sentiment and contextual signals that help advertisers align campaigns with environments that support specific brand objectives. The significance extends beyond operational efficiency. AI is helping make vast content libraries more discoverable, more understandable and ultimately more monetizable. Content that may once have been difficult to classify can now be surfaced, organized and matched with advertiser objectives at scale.

Publishers now have new opportunities to package and monetize inventory. Advertisers have greater visibility into the environments surrounding their messages. For the broader industry, it creates a foundation for scaling audio in ways that were previously difficult to achieve.

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The Third Ingredient: Programmatic Access

A major development in CTV growth was the expansion of programmatic buying. As inventory became easier to access through automated platforms, advertisers activated campaigns across large portions of the streaming ecosystem without relying on a fragmented marketplace.

‍Audio is undergoing a similar transition. According to a recent Advertiser Perceptions study, 82% of national agencies and advertisers now buy audio programmatically, roughly double the share reported just three years earlier. That signals audio is quickly becoming easier to integrate into broader omnichannel media strategies. Premium audio inventory is increasingly available through the same demand-side platforms advertisers already use for display, video and CTV. Streaming audio and podcast inventory can now be activated alongside other media channels within familiar workflows, reducing friction for buyers and making it possible to evaluate audio as part of a unified campaign strategy.

‍The supply side is evolving as well. Programmatic marketplaces are aggregating premium inventory across publishers and platforms so advertisers can reach larger portions of the audio ecosystem through fewer buying relationships. The result is a market that is becoming easier to access, easier to scale, and easier to optimize.

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The Fourth Ingredient: Measuring Outcomes

Measurement played a critical role in CTV's evolution into a performance channel. As streaming matured, marketers gained better tools to understand whether ad exposure influenced consumer behavior. Brand lift studies, attribution models and outcome-based measurement frameworks gave advertisers greater confidence in CTV’s ability to produce results. In the case of digital audio, advertisers increasingly want to understand whether exposure influenced awareness, consideration, store visits, website activity or purchases. More and more we see the growing use of incrementality testing, holdout groups and causal lift studies rather than relying solely on click-based attribution. These methodologies are increasingly being applied across digital channels, including audio, to help marketers understand whether advertising actually drove a business outcome. The industry's focus has shifted from "what got credit?" to "what caused the result?"

This shift is particularly important because the broader advertising market is increasingly organized around outcomes. Retail media, commerce media and performance-oriented buying models have raised expectations across the industry. The channels attracting investment are increasingly the channels capable of demonstrating measurable business impact.

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The Fifth Ingredient: Smarter Signals

As cookies, device IDs and other identifiers become less reliable, advertisers are looking for new ways to understand consumers.Unlike much of the open web, audio is not dependent on a single targeting approach. Logged-in streaming environments provide valuable first-party audience data, while advances in AI are making it possible to understand content at unprecedented scale. Together, those signals help advertisers reach consumers based on both who they are and what they are listening to. AI can now analyze conversations, themes, sentiment and contextual signals across millions of hours of podcasts and other audio environments. That allows advertisers to align campaigns with moments of interest, intent and engagement rather than relying exclusively on audience identifiers.

As the advertising ecosystem moves beyond the cookie era, this combination of identity, context and content intelligence gives audio a durable foundation for growth.

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The Final Ingredient

Connected TV's inflection point did not arrive when consumers started streaming. It arrived when advertisers became confident they could buy, measure and optimize the channel with the same rigor they applied elsewhere in the media mix. Audio has all the pieces. It has a scaled audience, programmatic access, measurement, identity frameworks, and libraries of content. The final ingredient may not be technological at all. It may simply be acceptance. As advertisers grow more comfortable evaluating audio alongside video, social, retail media and other performance channels, audio becomes easier to include in the same planning conversations and compete for the same budgets.

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About Audion

Founded in 2018 by Arthur Larrey and Kamel El Hadef, Audion has established itself as the go-to partner for digital audio solutions for brands and their media agencies. With a technology-driven and AI-powered approach, Audion transforms audio into a high-performing, controllable, and measurable media lever across the entire marketing funnel.

Leveraging proprietary technologies integrated with artificial intelligence, Audion designs, activates, and optimizes results-oriented audio campaigns capable of delivering tangible outcomes - from brand awareness to business performance.

With offices in Paris, New York, London, Milan, Brussels, Amsterdam, and Hamburg, Audion brings together a team of 50 experts dedicated to helping advertisers unlock the full strategic and operational potential of digital audio.

Website: www.audion.ai

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