Harnessing Sound: Transforming Data Transmission Beyond Smartphones

Moran Lerner, chief executive officer of Chirp, explains how sound‑based data transfer can extend IoT beyond conventional smartphones.

While the Internet of Things has reshaped daily life, most connectivity solutions still rely on Wi‑Fi or Bluetooth. Sound, however, offers a complementary channel that can reach devices without prior pairing or network access.

Data‑over‑sound works by modulating information into a sequence of tones. A receiver demodulates the signal, translating it back into digital data. This “sonic barcode” can be broadcast to any microphone‑capable device, making it ideal for one‑to‑many or peer‑to‑peer interactions.

Like radio waves, sound is omnidirectional, allowing a single transmitter to reach a broad audience. In environments where RF is prohibited—such as nuclear power plants—sound can create a secure, low‑power network that keeps operators informed in real time.

The sound saviour

Many firms focus on data‑over‑sound for smartphones, yet the real potential lies in offline, diverse‑device ecosystems. For example, in Industrial IoT, sound can link isolated machinery, enabling real‑time diagnostics and emergency responses without existing RF infrastructure.

Consider a nuclear facility: operators can receive live sensor readings, track portable equipment, and trigger automated safety protocols—all through audio signals captured by handheld microphones.

In the entertainment sector, Hijinx Toys used sound to animate its Beat Bugs line. The toys sync with a Netflix show, recognizing on‑screen audio cues and responding without internet connectivity.

This scenario shows why traditional modulation/demodulation is unsuitable for audible “sonic barcodes” over streaming media; instead, the toys listen for specific audio fingerprints within the show’s soundtrack.

These examples illustrate that sound can power immersive, data‑rich experiences for any industry—whether monitoring critical infrastructure or enhancing play.

Innovative problem‑solving

Organizations should evaluate sound as an alternative or complementary connectivity layer, especially when RF is costly, complex to deploy, or restricted. It can simplify device onboarding and open new customer touchpoints.

Ultimately, sound‑based networking is not about novelty; it’s a pragmatic solution that aligns with business objectives, reduces operational complexity, and addresses real challenges.

The author of this blog is Moran Lerner, chief executive officer of Chirp.