Audio fingerprinting — what is it and why is it useful?

Demystifying Audio Watermarking, Fingerprinting and Modulation/Demodulation

What we mean by ‘audible’, ‘inaudible’ and ‘ultrasonic’

There is a lot of misinformation around about what the terms ‘audible’, ‘inaudible’ and ‘ultrasound’ mean. This post aims to give readers a better understanding of each, the reasons behind some of the confusion, and why the…

Sending data using sound with Chirp

Chirp SDKs make sending data with audio incredibly straightforward for developers. Data is…

Audio Easter Eggs

We examine nine of our favourite hidden audio messages embedded within music, film…

Audible or Inaudible Ultrasound? Advantages and limitations of each

At the core of Chirp is one simple objective — to leverage sound’s unique characteristics and affordances to enable a whole world of machine-to-machine interactions.

Chirp + TOTP (Generation and Transmission)

One time password(OTP) is one of the common forms of Multi-Factor Authentication…