Struct screech::basic::Slew

pub struct Slew {
    pub value_per_ms: f32,
    // some fields omitted
}

Signal slew rate limiter

Limit the speed of change by voltage per millisecond

use screech::core::Signal;
use screech::basic::Slew;

// set a sample rate of 4000 samples per second
let sample_rate = 4000;
let signals = Signal::from_points(vec![1.0, -1.0, -1.0, 1.0, 1.0, -1.0, -1.0, 0.0, 0.0]);
// adjust the speed of the slew rate to be 1.0 "volts" per millisecond
let mut slew = Slew::new(1.0);

assert_eq!(
    signals
        .into_iter()
        .map(|s| *slew.process(sample_rate, s).get_point())
        .collect::<Vec<f32>>(),
    &[0.25, 0.0, -0.25, 0.0, 0.25, 0.0, -0.25, 0.0, 0.0],
);

Fields

value_per_ms: f32

“voltage” or value change per millisecond

Implementations

impl Slew

pub fn new(value_per_ms: f32) -> Self

Initialize a new slew instance

Sets the value per ms on init

pub fn process(&mut self, sample_rate: usize, signal: Signal) -> Signal

Process a crate::core::Signal through the slew rate limiter