AudioFilterBuffer

Platform-specific audio filter buffer for real-time audio processing.

AudioFilterBuffer represents a buffer of floating-point audio samples that can be processed by audio filters. The actual implementation varies by backend:

• Native platforms (C++): Uses cpp.Pointer<cpp.Float32> for direct memory access
• Other platforms: Uses Float32Array for managed array access

This type is used internally by the audio filter system to pass audio data between filters efficiently. Each buffer contains a fixed number of samples that represent a small chunk of audio data.

The buffer supports array-style access for reading and writing samples:

var sample = buffer[0];  // Read first sample
buffer[0] = 0.5;        // Write to first sample