Sound is one of the most potent yet underutilized tools in television advertising. While visuals capture attention, audio cements that attention into memory. A well-designed soundscape can make a product feel more tangible, emphasize specific features, and trigger emotional responses that drive purchase decisions. In this article, we’ll examine proven strategies for using sound to highlight product features in TV ads, drawing on research in audio branding and real-world commercial successes.

The Science Behind Sound and Memory

Human brains are wired to process audio cues faster than visual ones. Studies show that sound can increase ad recall by up to 86% when paired with relevant imagery. This is because audio enters the brain through the ear and directly stimulates the amygdala—the emotional processing center—before the cortex has time to analyze the visual input. By strategically deploying sounds that are congruent with the product feature you want to highlight, you can create a direct neural link between the audio cue and the benefit.

For example, a crisp, satisfying snap when a bottle cap twists open reinforces the idea of freshness and ease of use. The brain stores that auditory signature alongside the visual packaging, making the product more memorable during a future shopping trip. This principle is the foundation of effective sonic branding in television advertising.

Expanded Strategies for Highlighting Features

1. Assign a Distinct Sonic Signature to Each Key Feature

Rather than using generic sound effects, design unique audio moments for the most important product attributes. For a smartphone camera, a precise aperture click can communicate quality. For a car’s safety system, a soft chime with a rising pitch can convey reassurance. These distinctive sounds act as audio logos—they instantly trigger the feature’s benefit in the viewer’s mind.

To maximize impact, the sound should be presented in isolation (even if only for half a second) so that the audience’s focus narrows to that specific attribute. This technique is used by brands like Apple, where the sound of a MacBook’s power cord plugging in is subtly amplified to convey solid build quality.

2. Use Voiceover Pacing and Tone to Emphasize Attributes

A voiceover can do more than just describe features. By varying cadence, volume, and pitch, you can direct attention to the most critical words. For instance, slowing down the delivery when stating “zero calories” or raising the pitch on “new formula” makes those phrases stand out. Voice actors should be coached to place vocal emphasis on function and benefit words, not just brand name.

Additionally, consider using a second voice (like a satisfied customer) to deliver a testimonial about a specific feature. The change in vocal texture breaks the monotony and signals authenticity, which is especially effective for trust-based features such as “hypoallergenic” or “money-back guarantee.”

3. Align Background Music with Feature Benefits

Music sets the emotional context. For features that imply energy and speed—like a blender’s powerful motor—choose driving percussion and fast tempo. For luxury or precision features—such as a watch’s Swiss movement—use orchestral strings with a slow, rhythmic pulse. The key is congruence: the music’s mood must match the feature’s perceived benefit.

But avoid turning music into a wall of sound. Allow moments of silence or minimal music during feature reveals. A sudden drop in volume, followed by a clear sound effect or voiceover, forces the ear to pay attention. This technique, called “audio spotlighting,” is used extensively in Dyson commercials to highlight suction noise right after a quiet moment.

4. Build an Audio Hierarchy

Not all features are equally important. Use sound levels to create a hierarchy: the hero feature gets the loudest, most distinctive audio event (e.g., a satisfying crunch for a snack chip), while secondary features are supported by softer sound effects or subtle musical cues. This prevents cognitive overload and ensures that viewers remember the one or two key product benefits you want them to associate with the brand.

Real-World Examples of Sound Highlighting Product Features

Several notable campaigns demonstrate the power of sound. The Intel “bong” jingle is a classic example of a short audio logo that signals reliability and performance, but for feature-specific sound, look at the Volkswagen “The Force” ad. In that commercial, the car starts with a quiet hum rather than a roar, communicating electric engine efficiency and near-silent operation. The sound directly highlights a feature—quieter ride—that was central to the product’s value.

Another example is the KFC “Finger Lickin’ Good” campaign, where the sound of a paper wrapper crinkling followed by a slow bite crunch evokes the texture of fried chicken. That audio cue tells the viewer that the chicken is crispy—without a single word spoken. For a more recent case, listen to the Microsoft Surface stylus click: an intentional, crisp sound that suggests precision and responsiveness. You can explore more audio branding case studies at the Sonic Scoop resource site.

Technical Best Practices for Sound Design in TV Ads

Ensure Audio Is Intelligible on All Devices

Modern televisions vary wildly in sound quality—from high-end soundbars to small laptop speakers. A feature-highlighting sound effect or voiceover must be mixed so it is clear across these outputs. Avoid frequencies below 100 Hz for primary audio elements, as these can get lost on smaller speakers. Use mid-range frequencies (300 Hz to 3 kHz) for voice clarity and sizzling high frequencies (above 8 kHz) for crispness in product sounds like clicks or squirts.

Test the Ad in a Simulated Living Room Environment

Mixing studios often have perfect acoustics, which isn’t realistic. Before finalizing, play the ad through a typical TV speaker at normal volume levels. Ask listeners to identify the featured product attribute without visuals—if they can guess correctly, your sound design is doing its job. If not, adjust the mix.

Balance Consistency with Surprise

Brands often use the same sonic logo across campaigns, but feature-highlighting sounds should be singular to each product. A car brand might use a consistent engine roar across all SUV ads, but for a new safety feature, introduce a unique alert chime. That fresh sound will not be associated with previous ads, giving it a stronger novelty effect that grabs attention.

Common Mistakes to Avoid

  • Overcrowding the audio mix. When voiceover, music, and sound effects all compete, the feature gets lost. Leave silence or low-music sections for feature moments.
  • Using sounds that clash with brand identity. A luxury perfume brand should not use a growling chainsaw sound to highlight a bottle cap; the mismatch confuses viewers.
  • Ignoring the ending. Many ads fade out audio too quickly. A lingering sound of the featured product—like the hiss of a carbonated drink opening—can stay in the viewer’s memory long after the screen goes black.
  • Relying solely on music. Music sets mood but rarely communicates specific features. Pair it with targeted sound effects or voiceover to ensure the message is received.

Measuring the Effectiveness of Sound in Highlighting Features

You cannot optimize what you do not measure. After airing the ad, conduct brand lift studies that ask viewers to recall specific features. Audio metrics like “sonic memorability” can be tested using surveys where participants hear the sound effect alone and are asked to identify the product and the feature. Tools like YouGov offer tracking on ad recall and brand perception that can be filtered by audio elements. Additionally, eye-tracking combined with audio monitoring can show whether audience attention increases during a sound-highlighted moment.

Conclusion

Sound is a strategic asset that, when used deliberately, transforms a TV ad from a passive viewing experience into an active memory-building event. By assigning unique sounds to each key feature, using voiceover dynamics to emphasize benefits, and aligning music mood with product personality, advertisers can ensure that consumers not only see the product but also hear—and remember—what makes it special.

The most effective audio strategies are simple: one clear sound per feature, a moment of contrast before the cue, and consistent testing across playback devices. As TV ad platforms evolve and viewer attention becomes more fragmented, sound remains a direct line to the emotional and cognitive centers that drive purchases. For deeper reading on audio branding principles, visit the Audio Branding Academy’s resources at ABA.

Ultimately, the right sound at the right moment can make a product feature feel not just visible, but inevitable.