The announcement follows the recent release of Chirp’s Arm SDK, which provides a software-defined data-over-sound solution that is optimised for Arm architectures.
Chirp’s Arm SDK has capitalised on the Digital Signal Processing (DSP) capabilities of Arm's Cortex-M4 and Cortex-M7 processors to engineer a reliable data transfer solution that's resource intensive, enabling connectivity and application logic to reside on a single Arm core.
The SDK exists as a static library (approximately 740KiB in size) with a straightforward API for sending and receiving data via Chirp signals. The SDK implements the physical and data link layers of the data-over-sound OSI stack, with any additional layers such as encryption, application-specific protocols, or end-to-end transmission/QoS being simple to
implement on top of the SDK if required.
As an Arm ecosystem partner, Chirp looks to help developers to lower the barrier to integrating data-over-sound into Arm-based devices for purposes such as device provisioning, proximity detection, 2-way acoustic NFC and telemetry in RF-restricted environments. It also places the technology in the hands of device manufacturers and developers who wish to take advantage of a frictionless, low-cost solution for device-to-device communication.
Chirp’s software-only solution can provide enhanced connectivity to any audio-capable smart device without adding to its existing bill of materials.
“By simplifying data-over-sound technology for Arm-based devices, we are able to extend our support of developers with a reliable data transfer solution and increase the footprint of data-over-sound as a cost effective and versatile capability to application connectivity. The demand for frictionless data exchanges between connected devices is growing constantly and we look forward to seeing our technologies work together to make communication between devices both simple and seamless for the end user,” commented James Nesfield, CEO of Chirp.
