Development toolkit eases wireless hearing aid design

October 18, 2017 //By Julien Happich
Development toolkit eases wireless hearing aid design
ON Semiconductor's Ezairo Preconfigured Suite (Pre Suite) is a development toolkit enabling turnkey solutions based on the company’s Ezairo 7100 DSP, with a firmware bundle that makes it easier to build wireless-enabled hearing aids.

The wireless-enabled Ezairo 7150 SL is a hybrid module that combines the company's Ezairo 7100 DSP with a wireless transceiver to support Bluetooth low energy technology and proprietary 2.4GHz protocols, and 2Mb of EEPROM memory for storing important hearing aid parameters and firmware.

The firmware includes Wide Dynamic Range Compression (WDRC), adaptive noise reduction, support for directional microphones, acoustic feedback cancellation, and environmental classification. The firmware bundle also provides support for advanced wireless features, opening the door for wireless fitting and advanced user control. To help manufacturers tailor the Ezairo-based firmware bundles to their specific needs, ON Semiconductor provides a Windows-based software package which acts as a complete end-to-end user interface for developing next-generation hearing aids. The software package includes features such as transducer modelling and calibration, parameter control, and live diagnostic tools that help fine-tune performance and optimise audio quality. Also included is a cross-platform Software Development Kit (SDK) which not only supports Windows, but mobile platforms as well including both iOS and Android, with wired or wireless communications over Bluetooth low energy (BLE) technology possible.

ON Semiconductor -

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