//! Input feature extraction and processing for neural spatial audio
//!
//! This module is reserved for future expansion of feature extraction capabilities.
//! Currently, feature extraction is handled within individual model implementations
//! (see the `features_to_vector` methods in models.rs).
//!
//! Future enhancements may include:
//! - Shared feature extraction pipelines
//! - Spectral feature computation (MFCC, mel-spectrograms, etc.)
//! - Spatial feature encoding
//! - Room impulse response feature extraction
//! - HRTF feature processing
//! - Advanced audio descriptors
// Placeholder for future feature extraction utilities