Struct Crossfeed 

pub struct Crossfeed { /* private fields */ }

Bauer crossfeed processor

Uses a 2nd-order Butterworth high-pass filter for the crossfeed path. Implementation uses Direct Form II Transposed for numerical stability.

Implementations

impl Crossfeed

pub fn new(sample_rate: f64) -> Self

Create a new crossfeed processor with default settings

Default: 700Hz cutoff, 0.35 crossfeed amount

pub fn with_params(sample_rate: f64, cutoff_hz: f64, mix: f64) -> Self

Create with custom parameters

Arguments

• sample_rate - Audio sample rate in Hz
• cutoff_hz - HPF cutoff frequency (600-900 Hz typical)
• mix - Crossfeed amount (0.0 - 1.0, 0.3-0.45 typical)

pub fn set_mix(&mut self, mix: f64)

Set crossfeed amount (0.0 - 1.0)

pub fn set_sample_rate(&mut self, sample_rate: f64, cutoff_hz: f64)

Update sample rate and recalculate HPF coefficients This is critical when playing files with different sample rates (e.g., 44.1kHz vs 192kHz) to maintain correct cutoff frequency.

pub fn set_enabled(&mut self, enabled: bool)

Set enabled state

pub fn reset(&mut self)

Reset filter state

pub fn process(&mut self, samples: &mut [f64], channels: usize)

Process interleaved stereo samples in-place

Only processes if channels == 2 (stereo). Mono and multi-channel pass through.

pub fn get_settings(&self) -> CrossfeedSettings

Get current settings

Trait Implementations

impl Default for Crossfeed

fn default() -> Self

Returns the “default value” for a type.