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added AllPass::next_linear

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This commit is contained in:
Weird Constructor 2022-07-21 02:03:16 +02:00
parent e6fad9086b
commit fa6af749de
1 changed files with 16 additions and 1 deletions
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17
src/dsp/helpers.rs
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@ -1221,7 +1221,8 @@ impl<F: Flt> AllPass<F> {
self.delay.tap_n(time_ms) self.delay.tap_n(time_ms)
} }
/// Retrieve the next sample from the all-pass filter while feeding in the next. /// Retrieve the next (cubic interpolated) sample from the all-pass
/// filter while feeding in the next.
/// ///
/// * `time_ms` - Delay time in milliseconds. /// * `time_ms` - Delay time in milliseconds.
/// * `g` - Feedback factor (usually something around 0.7 is common) /// * `g` - Feedback factor (usually something around 0.7 is common)
@ -1233,6 +1234,20 @@ impl<F: Flt> AllPass<F> {
self.delay.feed(input); self.delay.feed(input);
input * g + s input * g + s
} }
/// Retrieve the next (linear interpolated) sample from the all-pass
/// filter while feeding in the next.
///
/// * `time_ms` - Delay time in milliseconds.
/// * `g` - Feedback factor (usually something around 0.7 is common)
/// * `v` - The new input sample to feed the filter.
#[inline]
pub fn next_linear(&mut self, time_ms: F, g: F, v: F) -> F {
let s = self.delay.linear_interpolate_at(time_ms);
let input = v + -g * s;
self.delay.feed(input);
input * g + s
}
} }
#[derive(Debug, Clone)] #[derive(Debug, Clone)]