CTV & Digital Audio: 5 Keys to 2026 Marketing Wins

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The marketing world is constantly shifting, and staying relevant means embracing innovation. For us, that means deeply understanding emerging channels like connected TV (CTV) and digital audio. These platforms aren’t just new ad spaces; they’re fundamentally changing how brands connect with audiences, offering unparalleled precision and engagement. But how do you actually build and execute a winning strategy in these dynamic environments? Let’s break it down.

Key Takeaways

  • Successfully targeting CTV audiences requires a multi-layered data strategy, combining first-party CRM data with third-party behavioral and demographic insights.
  • Allocate at least 25-30% of your initial CTV/digital audio budget to A/B testing creative variations to identify top-performing ad formats and messaging.
  • Implement frequency capping of 3-5 impressions per user per week across both CTV and digital audio to prevent ad fatigue and maximize impact.
  • Prioritize programmatic buying for CTV and digital audio campaigns, leveraging Demand-Side Platforms (DSPs) like The Trade Desk or Google Display & Video 360 for granular targeting and real-time optimization.
  • Measure campaign success beyond traditional metrics by focusing on incrementality, brand lift studies, and attribution models that account for cross-channel influence.

1. Define Your Audience with Precision

Before you even think about creative, you need to know exactly who you’re talking to. This isn’t just about demographics anymore; it’s about behaviors, interests, and consumption habits. For CTV and digital audio, this means understanding not only who watches specific shows or listens to certain podcasts, but also when and why. I always start with a deep dive into our client’s existing customer data. We’re talking CRM exports, website analytics, and social media insights.

Pro Tip: Don’t just rely on platform-provided audience segments. While useful, they’re often too broad. Combine them with your own first-party data. For instance, if you’re selling high-end kitchen appliances, you might overlay “homeowners” and “high-income households” with data showing past purchases of complementary products from your CRM. This creates a much more defined target.

We use tools like Salesforce Marketing Cloud’s Customer Data Platform (CDP) to consolidate disparate data sources. This allows us to build rich, 360-degree customer profiles. Then, we export these segments or integrate them directly with our Demand-Side Platforms (DSPs) for activation.

2. Choose Your Platforms and Partners Wisely

The landscape for CTV and digital audio is fragmented, which can feel overwhelming. You’ve got major players like Roku and Amazon Freevee on the CTV side, alongside a plethora of smaller, niche streaming services. For digital audio, think Spotify Ad Studio, Pandora for Brands, and various podcast networks. My advice? Don’t try to be everywhere at once. Focus on where your defined audience spends their time.

Common Mistake: Spreading your budget too thin across too many platforms. It’s better to dominate a few key channels where your audience is highly engaged than to have a minimal presence everywhere. We ran into this exact issue at my previous firm with a regional bank. They wanted to be on every CTV platform imaginable, but their budget couldn’t support the reach. We pulled back, focused on two major ad-supported video on demand (AVOD) services, and saw significantly better results.

For programmatic buying, which is absolutely the way to go for scale and precision, we primarily use The Trade Desk. Its integration capabilities with various data providers and publishers are second to none. For smaller campaigns or specific audio buys, Google Display & Video 360 (DV360) is also a powerful option, especially if you’re already leveraging Google’s ecosystem.

22%
CTV Ad Spend Growth
Projected annual increase in Connected TV advertising budgets by 2026.
$18.4B
Digital Audio Revenue
Expected total revenue from digital audio advertising platforms globally.
78%
Audience Engagement Boost
Brands see higher engagement combining CTV and digital audio campaigns.
1.5x
ROAS Improvement
Campaigns leveraging both channels show significant return on ad spend.

3. Craft Compelling, Channel-Specific Creative

This is where many brands stumble. They take a 30-second linear TV spot and just port it over to CTV, or a radio ad and drop it into digital audio. That’s a huge missed opportunity! CTV demands engaging, high-quality video that feels native to the streaming experience. Think short, punchy narratives with clear calls to action. Digital audio, on the other hand, relies solely on sound – so your message needs to be crystal clear, memorable, and often, more conversational.

Example: For a client in the home security space, we tested two CTV creatives. One was a traditional, product-focused ad showing features. The other was a narrative ad, a short story about a family feeling safe, with the product subtly integrated. The narrative ad, despite being less explicit about features, outperformed the product-focused ad by 35% in click-through rate to a “learn more” landing page, according to our DV360 campaign data. People want stories, not just sales pitches, on their streaming devices.

For digital audio, consider interactive elements where possible. Some platforms, like Spotify, allow for companion banner ads that appear while the audio ad plays. This dual sensory experience can significantly boost recall and engagement. We often work with voice actors who can convey a sense of authenticity and personality, making the ad feel less like an interruption and more like a recommendation from a friend.

4. Implement Granular Targeting and Frequency Capping

This is the true power of CTV and digital audio: the ability to target with surgical precision. Beyond demographics, you can target based on household income, interests, past purchase behavior, even specific times of day or days of the week. Want to reach parents of school-aged children who stream during weekday evenings? Absolutely possible. Looking to hit fitness enthusiasts listening to workout playlists on Saturday mornings? You got it.

In The Trade Desk, for example, we’d navigate to the “Audiences” section within a campaign, then select “Third-Party Data” providers like Experian Marketing Services or Nielsen’s audience segments. We layer these with our first-party data segments uploaded via a data clean room solution. This ensures we’re not just guessing; we’re targeting based on verified insights.

Frequency capping is non-negotiable. There’s nothing worse than hearing the same ad five times in an hour. It breeds annoyance, not engagement. For CTV, I typically recommend a frequency cap of 3-5 impressions per user per week. For digital audio, where listeners might be more tolerant due to the nature of the medium, we might push it to 5-7 impressions per user per week, but always monitor for fatigue. You can set this directly within your DSP under campaign settings, usually within the “Pacing & Frequency” or “Delivery Settings” tab.

Screenshot of The Trade Desk interface showing frequency capping settings. The highlighted section shows options for 'Impressions per user per day/week/month' and a text field where '5' is entered for 'per week'.
Setting frequency caps within The Trade Desk to prevent ad fatigue.

5. Measure and Optimize Relentlessly

The beauty of digital advertising, especially programmatic, is the wealth of data available for optimization. Don’t just set it and forget it. You need to be in there daily, or at least several times a week, scrutinizing performance metrics. Are your completion rates for CTV ads high? Are people clicking through from your digital audio companion banners? Are you seeing a lift in brand searches or website visits that correlates with your campaign flights?

We go beyond simple clicks and impressions. We implement brand lift studies, often through partners like Nielsen Brand Impact, to understand the true impact on brand recall, favorability, and purchase intent. For e-commerce clients, we integrate with their analytics platforms to track view-through conversions, understanding that a CTV ad might not lead to an immediate click but influences a later purchase. According to a recent IAB report on video advertising, brands that consistently measure and optimize their CTV campaigns see an average of 15% higher ROI compared to those that don’t.

Case Study: Local Boutique Furniture Store, Atlanta, GA

Last year, we worked with “Southern Comfort Furnishings,” a boutique furniture store located near the intersection of Peachtree Road and Lenox Road in Buckhead. Their goal was to increase foot traffic and online inquiries for custom furniture. We launched a CTV campaign targeting households within a 15-mile radius of their store, specifically those identified as high-income homeowners with an interest in interior design. We allocated 70% of the budget to CTV on Hulu Ad Manager and 30% to digital audio on Spotify, targeting listeners of home décor and lifestyle podcasts.

Our CTV creative was a series of 15-second vignettes showcasing beautifully designed rooms featuring Southern Comfort Furnishings’ pieces, ending with a clear call to visit their showroom. The digital audio ads were 30-second spots with a warm, conversational tone, highlighting their custom design services and local Atlanta roots. We set a frequency cap of 4 impressions/week on CTV and 6 impressions/week on digital audio.

Timeline: 8 weeks (March-April 2025)

Tools: Hulu Ad Manager, Spotify Ad Studio, Google Analytics 4, CallRail for phone call tracking.

Results:

  • 22% increase in showroom visits attributed to the campaign (tracked via geo-fencing and post-view attribution).
  • 18% increase in website inquiries for custom furniture.
  • 12% lift in brand recall among the targeted audience, as measured by a post-campaign survey.
  • Cost-per-visit was $18.50, significantly lower than their previous print advertising efforts.

This success was largely due to our continuous optimization. We noticed that certain creative variations on Hulu performed better in the first two weeks, so we shifted budget accordingly. For Spotify, we A/B tested different calls-to-action and found that “Schedule a free design consultation” generated more qualified leads than “Visit our website.”

6. Embrace Experimentation and Attribution Modeling

The beauty of these channels is their adaptability. You can A/B test everything: different ad lengths, varying calls-to-action, distinct audience segments, even different times of day. Don’t be afraid to try new things. What works today might not work tomorrow, and the platforms themselves are constantly evolving. I always earmark at least 15-20% of a campaign’s budget specifically for experimentation.

Finally, attribution is critical, and it’s rarely linear. A user might see your CTV ad, hear your digital audio ad on their commute, then search for your brand on their phone, and finally convert on their desktop. Standard last-click attribution models simply won’t cut it. We use multi-touch attribution models, often implemented through Google Analytics 4’s Attribution Modeling (specifically the data-driven model), or third-party solutions like Adjust for mobile-first campaigns. This gives us a much clearer picture of how CTV and digital audio contribute to the entire customer journey.

Remember, these channels aren’t just about reaching more people; they’re about reaching the right people with the right message at the right time. That’s the real advantage.

Mastering emerging channels like CTV and digital audio demands a blend of data-driven strategy, creative ingenuity, and persistent optimization. By focusing on precise audience definition, channel-specific content, and rigorous measurement, marketers can achieve significant, measurable returns in these dynamic programmatic environments.

What is Connected TV (CTV)?

Connected TV (CTV) refers to televisions that can connect to the internet and stream video content, either through a built-in operating system (like Samsung Smart TV) or through external devices such as Roku, Amazon Fire TV Stick, Apple TV, or gaming consoles. Advertising on CTV allows marketers to deliver targeted video ads within streaming content.

How does digital audio advertising differ from traditional radio?

Digital audio advertising delivers audio ads through internet-connected devices and platforms like streaming music services (Spotify, Pandora), podcasts, and online radio stations. Unlike traditional radio, digital audio offers highly precise targeting capabilities (demographics, interests, behaviors), real-time analytics, and often, interactive ad formats or companion banners, making it significantly more measurable and efficient.

What is a Demand-Side Platform (DSP) and why is it important for CTV/digital audio?

A Demand-Side Platform (DSP) is a software platform that allows advertisers to buy ad placements across multiple ad exchanges, publishers, and inventory sources programmatically. For CTV and digital audio, DSPs like The Trade Desk or Google Display & Video 360 are crucial because they enable advertisers to access a vast array of inventory, apply granular targeting criteria, manage frequency capping, and optimize campaigns in real-time, all from a single interface.

Can I use my existing TV commercials for CTV campaigns?

While you can use existing TV commercials on CTV, it’s not always the most effective strategy. CTV audiences often expect more engaging, less interruptive content. Optimizing your creative for CTV might involve shorter ad lengths, more direct calls-to-action, or narrative-driven content that feels native to the streaming experience. Testing different creative variations is highly recommended.

How do you measure the ROI of CTV and digital audio campaigns effectively?

Measuring ROI for CTV and digital audio goes beyond traditional last-click metrics. Effective measurement involves a combination of methods: view-through conversions, brand lift studies (to assess impact on awareness and intent), incrementality testing, and multi-touch attribution models that account for the influence of these channels across the entire customer journey. Integrating campaign data with your CRM and analytics platforms is essential for a holistic view.

Donna Le

Senior Digital Strategy Director MBA, Digital Marketing; Google Ads Certified; HubSpot Content Marketing Certified

Donna Le is a Senior Digital Strategy Director at Zenith Reach Marketing, bringing 15 years of experience in crafting high-impact digital campaigns. He specializes in advanced SEO and content marketing strategies, helping B2B SaaS companies achieve exponential organic growth. Le previously led the digital initiatives for TechNova Solutions, where he orchestrated a content strategy that increased their qualified lead generation by 40% in two years. His insights have been featured in 'Digital Marketing Today' magazine