Enum AudioSource 

pub enum AudioSource {
    SineWave {
        frequency: f32,
        amplitude: f32,
    },
    SpeechPattern {
        fundamental_hz: f32,
        harmonics: Vec<f32>,
        variation_hz: f32,
    },
    Silence {
        noise_floor_db: f32,
    },
    WhiteNoise {
        amplitude: f32,
    },
    Samples {
        data: Vec<f32>,
        sample_rate: u32,
        loop_playback: bool,
    },
}

Audio source types for injection (H4-H6 falsification)

Variants

SineWave

Sine wave at specified frequency (Hz)

Fields

frequency: f32

Frequency in Hz (must be > 0, capped at Nyquist)

amplitude: f32

Amplitude in range [0.0, 1.0]

SpeechPattern

Speech-like audio (fundamental + harmonics) Per Radford et al. [11], speech has characteristic harmonic structure

Fields

fundamental_hz: f32

Fundamental frequency (100-300 Hz typical for speech)

harmonics: Vec<f32>

Harmonic amplitudes relative to fundamental (e.g., [0.5, 0.3, 0.2, 0.1])

variation_hz: f32

Pitch variation in Hz (adds natural variation)

Silence

Silence with optional background noise

Fields

noise_floor_db: f32

Noise floor in dB (negative values, e.g., -60.0)

WhiteNoise

White noise (for VAD testing - should NOT be classified as speech)

Fields

amplitude: f32

Amplitude in range [0.0, 1.0]

Samples

Pre-recorded audio samples (for deterministic testing)

Fields

data: Vec<f32>

Raw f32 samples in range [-1.0, 1.0]

sample_rate: u32

Sample rate of the data

loop_playback: bool

Whether to loop when exhausted

Trait Implementations

impl Clone for AudioSource

fn clone(&self) -> AudioSource

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AudioSource

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for AudioSource

fn default() -> Self

Returns the “default value” for a type.