Why is sound so powerful in communication?
👉 Also read: Why Visual Identity Matters in a Successful Communication Strategy
Sound creates lasting memories
The human brain processes sound emotionally and quickly. A melody can bring back a memory or a feeling instantly, much faster than a visual. In the System1 × TikTok study reported by Chief Marketer in 2025, sound elements placed in the first two seconds of a video produce the biggest increase in awareness, at 191%.
Sonic identity strengthens recognition
Just like a visual logo, a sonic logo makes a brand instantly identifiable, even without an image.
Hearing works in the background
You can look away, but you can't close your ears. Sound acts even when attention is partial, creating an unconscious and continuous imprint.
What does a sonic identity consist of?
1. The sonic logo: a short signature, often at the end of an ad (e.g. Intel, Netflix).
2. The musical universe: the music chosen to accompany content (ads, videos, events).
3. The brand voice: the type of voice-over used, its tone, age, accent...
4. Sound effects: small interaction sounds in an app, sound design on a website, etc.
5. Audio branding: hold music, sound design for physical spaces (shop, stand, etc.).
Examples of successful sonic identities
- Netflix: the famous "tudum" is now rooted in pop culture, recognised in a split second.
- McDonald's: its "pa pa pa paaa" has become a global landmark.
- SNCF: the four notes played before every station announcement are familiar to millions of travellers.
- Apple: every system sound (start-up, screenshot, notifications) contributes to a consistent premium experience.
How do you build an effective sonic identity?
✅ Stay true to the brand's values
A minimalist brand won't choose a dramatic orchestration. The sound must reflect the company's DNA.
✅ Favour simplicity and memorability
A few notes are enough. The goal is for the listener to be able to identify it, remember it and hum it.
✅ Ensure consistency across media
Sound must accompany the brand on every channel: TV ads, social media, podcasts, videos, events... Arcom's Tendances audio-vidéo 2026 study notes that the smartphone is the preferred screen for the youngest viewers to watch videos.
✅ Think UX and accessibility
Sound must not be intrusive. It should enrich the user experience, not interfere with it.
What if your brand stayed silent?
❌ No sonic identity = missed opportunity
In an audio-first world (podcasts, voice assistants, videos...), brands without sound become invisible in the auditory space. According to the EAR Podcast measurement by Médiamétrie and ACPM reported by CB News, 149 million podcasts were listened to or downloaded in France in October 2025.
❌ Risks of inconsistency
Randomly chosen music or changing voices harm recognition and overall consistency.
Conclusion
Sonic identity is a strategic tool that is still under-used. It doesn't replace visual identity; it complements and reinforces it, creating a richer, more memorable sensory relationship. In a world where attention is fragmented, sound is a powerful emotional shortcut to make your brand exist, even with your eyes closed.
🎧 Want to develop a strong sonic signature aligned with your image? At Esekai, we
support you in creating a tailor-made, consistent and impactful sound universe.