Did you know about data transmission over ultrasonic frequencies?

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Data over sound would most likely be the next revolutionary mode of communication

Data transactions and communication between devices are increasing in both volume and scale. In response, businesses must devise more efficient, innovative, and secure ways of communicating data that use the latest technological disruptions and innovations to stay relevant. Transferring data over audio is one key area that is being explored by various industries to address their business challenges more efficiently.

Data over audio is a modern way of communicating between devices that could potentially be more efficient, faster, and more secure than traditional modes, such as NFC, Bluetooth, LoRa etc., each of which has its own limitations and constraints.

The basic principle of how data over sound works is illustrated above. It starts with a sender and ends with the receiver of data. Any device that is sending data must have an encoder that can encode and secure the data that is broadcast via the device’s speaker on ultrasonic frequencies. The receiver device receives the data via its microphone and decodes the data using the decoder installed on the device.

Use cases where this technology is applicable include:

  • Ticketing: Audio QR is a game changer in this area. Traditional ways of scanning QR codes can be cumbersome, insecure, dependent on line of sight, and only processed serially. Audio QR enables authentication of multiple tickets simultaneously, reduces line of sight and queue problems, and can be implemented securely using the existing hardware, i.e. speakers, at the venue.
  • Marketing: Malls or department stores can use this technique to send out promotional information, preferential product information, and to improve user experience in general. It can be implemented using speakers at the mall and the data can be broadcast at ultrasound frequencies, which are inaudible to human ear.
  • Finance: Secure payment transactions can be carried out over audio frequencies to transfer data and establish secure connections between phone-to-phone, phone-to-PoS or, store speakers with phones. Google Pay is an app that implements secure payments using this technology.
  • Presence detection: Take-outs or restaurants can use this technique to detect a customer’s presence. The customer’s phone would send out a signal that can be decoded and authenticated by the receiving application. The identified customer can then be provided with a personalized, seamless, and automatic eat-and-go experience at the restaurant.
  • IoT device communication: IoT devices can be easily paired and can seamlessly communicate and exchange data with each other using this technology.

Implementing this concept virtually requires no additional hardware or infrastructure cost which makes it a very interesting prospect that is being explored by many industries to better address their business challenges.

Hence, data over sound would most likely be the next revolutionary mode of communication for implementing secure data transactions for numerous use cases. If you would like to know more about this or wish to collaborate with the Applied Innovation Exchange at Capgemini to implement it in any business use case please email wesley.weel@capgemini.com.