Struct FftProcessor 

pub struct FftProcessor { /* private fields */ }

FFT processor for time-to-frequency conversion.

Implementations

impl FftProcessor

pub fn new(fft_size: usize, hop_size: usize, sample_rate: u32) -> Result<Self>

Create a new FFT processor.

pub fn with_window( fft_size: usize, hop_size: usize, sample_rate: u32, window: WindowFunction, ) -> Result<Self>

Create with a specific window function.

pub fn fft_size(&self) -> usize

Get the FFT size.

pub fn hop_size(&self) -> usize

Get the hop size.

pub fn num_bins(&self) -> usize

Get the number of frequency bins (positive frequencies only).

pub fn bin_to_frequency(&self, bin: usize) -> f32

Get the frequency in Hz for a given bin.

pub fn frequency_to_bin(&self, freq: f32) -> usize

Get the bin index for a given frequency.

pub fn process_frame(&mut self, samples: &[f32]) -> Vec<Complex>

Process a frame of audio and return FFT bins.

pub fn process_all(&mut self, samples: &[f32]) -> Vec<Vec<Complex>>

Process all available frames in the buffer.

pub fn flush(&mut self) -> Option<Vec<Complex>>

Flush remaining samples (zero-pad if necessary).

pub fn reset(&mut self)

Reset the processor state.