Audio test tools

Summary

This repo contains several Python scrips and XC functions used for testing audio pipelines and the dependent libs.

Features ........

• XC functions to test FFT
• XC functions to handle wav files
• Python scripts to generate test audio tracks
• Python scripts to handle wav files
• Python scripts to convert PCM to PDM data
• Unit tests

Software version and dependencies .................................

The CHANGELOG contains information about the current and previous versions. For a list of direct dependencies, look for DEPENDENT_MODULES in audio_test_tools/module_build_info.