dasp_rs::signal_processing::time_frequency

Function stft

Source 
pub fn stft(
    y: &[f32],
    n_fft: Option<usize>,
    hop_length: Option<usize>,
    win_length: Option<usize>,
) -> Result<Array2<Complex<f32>>, AudioError>
Expand description

Computes the Short-Time Fourier Transform (STFT) of a signal.

§Arguments

  • y - Input signal as a slice of f32
  • n_fft - Optional FFT window size (defaults to 2048)
  • hop_length - Optional hop length in samples (defaults to n_fft/4, minimum 1)
  • win_length - Optional window length in samples (defaults to n_fft)

§Returns

Returns a Result containing an Array2<Complex<f32>> representing the STFT spectrogram, with shape (n_fft/2 + 1, n_frames), or an AudioError if array shaping fails.

§Examples

let signal = vec![1.0, 2.0, 3.0, 4.0];
let spectrogram = stft(&signal, None, None, None).unwrap();