- Created a new SIMD interface header and source files for audio processing functions.
- Implemented functions for filling buffers, mixing audio, applying gain, calculating RMS and peak values, normalizing audio, converting stereo to mono, limiting audio, fading audio, and a simple equalizer.
- Added SSE-specific implementations for the audio processing functions to leverage SIMD for performance improvements.
- Updated CMakeLists.txt files to include new libraries and link dependencies for the SIMD interface and SSE implementations.
- Introduced a static test helper library for unit testing with Google Test framework.
