AN02050: Extend I2S loopback application with DSP and AI

Summary¶

This application note demonstrates incrementally adding audio DSP functionality and an AI-based keyword spotting capability to an existing I2S loopback application.

Features¶

• Audio Digital Signal Processing

• Keyword Spotting

Known issues¶

• None

Required tools¶

• XMOS XTC Tools: 15.3.1

Required libraries (dependencies)¶

• lib_audio_dsp (https://github.com/xmos/lib_audio_dsp)

• lib_board_support (https://github.com/xmos/lib_board_support)

• lib_i2s (https://github.com/xmos/lib_i2s)

• lib_xcore_math (https://github.com/xmos/lib_xcore_math)

Related application notes¶

• AN00162 - Implementing an I2S Loopback Using the lib_i2s Library

• AN02013 - Face Id and Keyword Spotting Example