Release Notes for STM32_AI_AudioPreprocessing_Library
Copyright © 2023 STMicroelectronics
Purpose
This STM32_AI_AudioPreprocessing_Library is a C Library for audio preprocessing in Artificial Intelligence applications optimized for STM32 devices. It provides the building blocks for spectral analysis and feature extraction, such as:
- Spectrogram computation
- Mel-scaled and LogMel-scaled spectrogram computation
- Mel-frequency cepstral coefficients (MFCCs) computation
Update History
Patch release
Main Changes
- distributed under BSD-3-Clause
Patch release
Main Changes
- Adds usage examples for melspectrogram and MFCC computation
Patch release
Main Changes
- Fixes DCT Type-II Ortho for MFCC calculation with librosa
Maintenance release
Main Changes
Bug fixes and cleanup
- Adds magnitude spectrograms support
- Adds log scale mel_filterbank supoport
- Updates DCT module
- Updates documentation
Backward Compatibility
This release breaks compatibility with previous versions.
First release
Dependencies
This software release is compatible with:
- CMSIS Version 4.5.0
- CMSIS-DSP Version 1.4.7