Struct MicrophoneCompensation 

pub struct MicrophoneCompensation {
    pub frequencies: Vec<f32>,
    pub spl_db: Vec<f32>,
}

Microphone compensation data (frequency response correction)

Fields

frequencies: Vec<f32>

Frequency points in Hz

spl_db: Vec<f32>

SPL deviation in dB (positive = mic is louder, negative = mic is quieter)

Implementations

impl MicrophoneCompensation

pub fn apply_to_sweep( &self, signal: &[f32], start_freq: f32, end_freq: f32, sample_rate: u32, inverse: bool, ) -> Vec<f32>

Apply pre-compensation to a sweep signal

For log sweeps, this modulates the amplitude based on the instantaneous frequency to pre-compensate for the microphone’s response.

Arguments

• signal - The sweep signal to compensate
• start_freq - Start frequency of the sweep in Hz
• end_freq - End frequency of the sweep in Hz
• sample_rate - Sample rate in Hz
• inverse - If true, applies inverse compensation (boost where mic is weak)

Returns

Pre-compensated signal

pub fn from_file(path: &Path) -> Result<Self, String>

Load microphone compensation from a CSV or TXT file

File format:

• CSV: frequency_hz,spl_db (with or without header, comma-separated)
• TXT: freq spl (space/tab-separated, no header assumed)

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

Interpolate compensation value at a given frequency

Uses linear interpolation in dB domain. Returns 0.0 for frequencies outside the calibration range.

Trait Implementations

impl Clone for MicrophoneCompensation

fn clone(&self) -> MicrophoneCompensation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MicrophoneCompensation

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

Formats the value using the given formatter.