Dev board delivers voice codec capability to Raspberry Pi
CML MICROCIRCUITS EV6550DHAT Raspberry Pi Hardware Attached on Top (HAT) compatible evaluation and development board makes the features and benefits of its CMX655D ultra-low power voice codec available to hobbyists, developers and product manufacturers. Unit builds on this growing ecosystem by bringing the advanced features of the CMX655D voice codec to the Raspberry Pi community.
The CMX655D has been developed for digital voice and sensor applications. It integrates the entire signal chain, from dual matched digital MEMS microphone interfaces to a 1W Class D speaker driver, incorporating decimation, filtering, signal processing and digital gain, supported by an I2S/PCM audio interface and SPI control interface. It represents a true single-chip, ultra-low power solution to adding advanced voice coding/decoding to any application.