Struct hexodsp::dsp::node_sfilter::SFilter

pub struct SFilter {
    israte: f32,
    z: f32,
    y: f32,
    k: f32,
    h: f32,
    delay: [f32; 4],
    otype: i8,
}

A simple amplifier

Fields

israte: f32

z: f32

y: f32

k: f32

h: f32

delay: [f32; 4]

otype: i8

Implementations

impl SFilter

pub fn new(_nid: &NodeId, _node_global: &NodeGlobalRef) -> Self

pub const inp: &'static str = "Signal input"

pub const freq: &'static str = "Filter cutoff frequency."

pub const res: &'static str = "Filter resonance."

pub const ftype: &'static str = "The filter type, there are varying types of \ filters available. Please consult the node documentation for \ a complete list.\n\ Types: **1p/1pt**=one poles, **12c**=Hal Chamberlin SVF,\n\ **12s**=Simper SVF, **24m**=Moog\n\ Outputs: **LP**=Low-,**HP**=High-,**BP**=Band-Pass,**NO**=Notch,**PK**=Peak"

pub const sig: &'static str = "Filtered signal output."

pub const DESC: &'static str = r#"Simple Filter This is a collection of more or less simple filters. There are only two parameters: Filter cutoff ~~freq~~ and the ~~res~~ resonance. "#

pub const HELP: &'static str = r#"Simple Audio Filter Collection This is a collection of a few more or less simple filters of varying types. There are only few parameters for you to change: ~~freq~~ and ~~res~~ resonance. You can switch between the types with the ~~ftype~~. There are currently following filters available: - **HP 1p** - One pole low-pass filter (6db) - **HP 1pt** - One pole low-pass filter (6db) (TPT form) - **LP 1p** - One pole high-pass filter (6db) - **LP 1pt** - One pole high-pass filter (6db) (TPT form) The Hal Chamberlin filters are an older state variable filter design, that is limited to max cutoff frequency of 16kHz. For a more stable filter use the "12s" variants. - **LP 12c** - Low-pass Hal Chamberlin state variable filter (12dB) - **HP 12c** - High-pass Hal Chamberlin state variable filter (12dB) - **BP 12c** - Band-pass Hal Chamberlin state variable filter (12dB) - **NO 12c** - Notch Hal Chamberlin state variable filter (12dB) The (Andrew) Simper state variable filter is a newer design and stable up to 22kHz at 44.1kHz sampling rate. It's overall more precise and less quirky than the Hal Chamberlin SVF. - **LP 12s** - Low-pass Simper state variable filter (12dB) - **HP 12s** - High-pass Simper state variable filter (12dB) - **BP 12s** - Band-pass Simper state variable filter (12dB) - **NO 12s** - Notch Simper state variable filter (12dB) - **PK 12s** - Peak Simper state variable filter (12dB) For a more colored filter reach for the Stilson/Moog filter with a 24dB fall off per octave. Beware high cutoff frequencies for this filter, as it can become quite unstable. - **LP 24m** - Low-pass Stilson/Moog filter (24dB) "#

pub fn graph_fun() -> Option<GraphFun>

Trait Implementations

impl Clone for SFilter

fn clone(&self) -> SFilter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SFilter

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

Formats the value using the given formatter.

impl DspNode for SFilter

fn set_sample_rate(&mut self, srate: f32)

Updates the sample rate for the node.

fn reset(&mut self)

Reset any internal state of the node.

fn process(
    &mut self,
    ctx: &mut dyn NodeAudioContext,
    _ectx: &mut NodeExecContext,
    _nctx: &NodeContext<'_>,
    atoms: &[SAtom],
    inputs: &[ProcBuf],
    outputs: &mut [ProcBuf],
    ctx_vals: LedPhaseVals<'_>
)

The code DSP function.