Quick answer: Choose CTV when television video helps explain the offer, streaming audio when a spoken message fits the listening context, and DOOH when physical location and visibility matter. Then check the audience forecast, creative cost and measurement available for the actual buy.
There is no useful universal ranking of these channels. A local retailer, a regional service business and a national software brand have different customer journeys. The right starting point is the business problem, followed by the audience you can reach and the evidence you need.
This guide provides Floodlight’s planning framework. The examples are hypothetical situations, not client case studies or claims that a channel will produce the same results for every business.
Compare the job each channel can do
| Channel | Useful starting situation | Main planning constraint |
|---|---|---|
| CTV | A product or service benefits from sight, sound and a clear demonstration | Video readiness, relevant inventory and enough budget for useful reach |
| Streaming audio | A simple spoken message can introduce the brand or offer while people listen | Audio clarity, inventory fit and a response path that works without a click |
| DOOH | Visibility in selected neighborhoods, routes or venues is central to the plan | The actual screen environment, audience estimate and viewing conditions |
Those are starting points. All 3 can support awareness, and each may support outcome measurement where the buy and study allow it. Access to a channel does not guarantee access to every publisher, audience, location or measurement product.
Start with the customer and the geography
Write down who can buy from you and where they need to be. A service business should avoid paying to reach places it cannot serve. A destination retailer may have a larger catchment area than a convenience business on the same street.
For CTV and audio, ask whether the intended geography and audience can produce enough eligible delivery. For DOOH, examine screen locations and the context in which the intended audience passes them. A forecast should identify constraints rather than simply repeat a national audience number.
- Where do existing customers come from?
- Which customer need should the ad address?
- Which places or activities make the message relevant?
- What part of this audience does the current media plan already reach?
Match the channel to the creative you can produce
CTV gives you a television canvas, but an unfinished or confusing video is a poor reason to buy it. Audio gives the voice and sound the full job of communicating the offer. DOOH requires a message that works at the distance, speed and orientation of the screen.
Review the cost of making useful creative before setting media allocations. A finished video may still need new versions. An audio recording may need rights cleared for paid use. A social image may be unreadable on a billboard.
Use a consistent brand and offer across channels, with separate executions built for each environment. Reusing the same idea is different from uploading the same file everywhere.
Compare budgets on the same basis
For CTV, Floodlight campaigns start at $3,500. Our CTV cost guide separates VOD and premium live planning assumptions. The audio cost guide and DOOH cost guide explain the different buying units and additional costs.
Compare the total commitment: media, production, management, data and any study. A low platform minimum tells you how little an account can spend. It does not establish how much a useful managed test should cost.
Do not divide a limited budget equally among 3 channels just to call the plan omnichannel. Concentrating on 1 clear question can be more informative than buying a small amount of everything.
3 hypothetical planning situations
| Business situation | A reasonable first question | Possible starting point |
|---|---|---|
| Local retailer opening a location | Which nearby audiences need to know we are here? | Evaluate relevant DOOH venues and routes, or a focused audio plan, against the trade area. |
| Regional service business with strong video | Can television exposure introduce a clear offer to serviceable households? | Forecast a focused CTV test with qualified-lead measurement. |
| Brand with a simple message and limited video resources | Can audio introduce the offer efficiently to the intended listeners? | Assess streaming audio inventory and production before funding a new video campaign. |
The same business could reach a different decision after reviewing forecasts, creative and existing customers. These examples show the reasoning process, not preset packages. If paid search already captures strong demand, the question may be how another channel adds reach rather than how it replaces search.
Decide what you can measure before booking
A campaign can deliver impressions successfully and still fail the business goal. Set a primary business outcome alongside delivery checks. Qualified leads, customer revenue, observed visits and awareness studies require different setups.
Check how each report defines reach, frequency and attribution. Do not add platform reach totals together and call the sum unique people. Likewise, summing attributed conversions can count the same customer more than once.
The IAB unified media planning playbook addresses planning across video environments, including the need to align measurement. Use comparable definitions in the proposal rather than assuming that identical column labels describe identical methods.
Our CTV and audio measurement guide and store-visit attribution guide explain the questions to ask.
When does adding a second channel make sense?
Add a channel when it has a defined role, the creative is ready and the remaining budget can support useful delivery. An audio message might reinforce the same offer introduced through video. Selected screens might provide local visibility around stores supported by a regional campaign.
Write down the expected contribution of the new channel. If you cannot explain the audience or decision it adds, the extra complexity may make the plan harder to evaluate.
Keep the test design honest. A before-and-after increase with several simultaneous promotions is not a clean measurement of the second channel’s incremental impact. Decide whether a holdout, market comparison or other study is feasible before making that claim.
A brief you can send to an agency
- Business goal and the customer action that matters.
- Audience, service area, locations and exclusions.
- Total budget, desired timing and seasonal constraints.
- Available video, audio, imagery and usage rights.
- Current channels and what their reporting does not answer.
- Available website, CRM or store data and its limitations.
- The decision you need to make after the test.
Share that brief with Floodlight. We can evaluate CTV, streaming audio and DOOH against the same business goal and recommend a workable starting point.