Struct WriteHead 

pub struct WriteHead<T: Transcendental, const BUF_SIZE: usize> { /* private fields */ }

Write head node — mixes input signal with feedback and writes into a shared [TapeLoop] that ReadHead nodes read from.

The tape loop is allocated by the graph’s resource registry during node initialization.

Signal ports

• 1 audio input (dry)
• 1 feedback input (from feedback loop)
• 1 main output (forward path passthrough)

Parameters

• delay_time (0.01 – 2.0 s)
• feedback (0.0 – 0.99)

Implementations

impl<T: Transcendental, const BUF_SIZE: usize> WriteHead<T, BUF_SIZE>

pub fn new(sample_rate: f32) -> Self

Create a new WriteHead with default delay (0.5 s) and feedback (0.3).

resource_name is the name of the shared tape loop in the buffer registry. Defaults to "tape_0".

pub fn with_resource(sample_rate: f32, resource_name: &str) -> Self

Create a new WriteHead with an explicit resource name.

Trait Implementations

impl<T: Transcendental, const BUF_SIZE: usize> Node<T, BUF_SIZE> for WriteHead<T, BUF_SIZE>

fn node_type_id(&self) -> NodeTypeId

where Self: 'static + Sized,

Get the node’s type ID

fn id(&self) -> NodeId

Get node ID

fn set_id(&mut self, id: NodeId)

Set node ID

fn metadata(&self) -> NodeMetadata

Get node metadata

fn init(&mut self, sample_rate: f32)

Initialize the node with a sample rate

fn reset(&mut self)

Reset the node to its initial state

fn resolve_resources(&mut self, resources: &mut ResourceRegistry<T>)

Resolve named shared resources (tape loops, etc.) from the registry, acquiring the capability handle matching this node’s role.

fn get_parameter(&self, id: &ParameterId) -> Option<ParamValue>

Get the value of a parameter

fn set_parameter( &mut self, id: &ParameterId, value: ParamValue, ) -> ProcessResult<()>

Set the value of a parameter

fn input_port(&self, i: usize) -> Option<&Port<T, BUF_SIZE>>

Get input port by index

fn input_port_mut(&mut self, i: usize) -> Option<&mut Port<T, BUF_SIZE>>

Get mutable input port by index

fn output_port(&self, i: usize) -> Option<&Port<T, BUF_SIZE>>

Get output port by index

fn output_port_mut(&mut self, i: usize) -> Option<&mut Port<T, BUF_SIZE>>

Get mutable output port by index

fn control_port(&self, _: usize) -> Option<&Port<T, BUF_SIZE>>

Get control port by index

fn control_port_mut(&mut self, _: usize) -> Option<&mut Port<T, BUF_SIZE>>

Get mutable control port by index

fn num_signal_inputs(&self) -> usize

Number of signal input ports

fn num_signal_outputs(&self) -> usize

Number of signal output ports

fn num_feedback_ports(&self) -> usize

Number of feedback ports

fn state(&self) -> &NodeState<T, BUF_SIZE>

Get node state

fn state_mut(&mut self) -> &mut NodeState<T, BUF_SIZE>

Get mutable node state

fn apply_set_parameter( &mut self, cmd: &SetParameter, ) -> Result<(), ProcessError>

Apply a SetParameter command to this node.

fn num_control_inputs(&self) -> usize

Number of control input ports

fn num_control_outputs(&self) -> usize

Number of control output ports

fn num_clock_inputs(&self) -> usize

Number of clock input ports

fn num_clock_outputs(&self) -> usize

Number of clock output ports

fn num_inputs(&self) -> usize

Total number of input ports

fn num_outputs(&self) -> usize

Total number of output ports

impl<T: Transcendental, const BUF_SIZE: usize> Processor<T, BUF_SIZE> for WriteHead<T, BUF_SIZE>

fn process( &mut self, _ctx: &RenderContext, _signal_inputs: &[&[T; BUF_SIZE]], _control_inputs: &[T], _clock_inputs: &[RenderContext], _feedback_inputs: &[&[T; BUF_SIZE]], ) -> ProcessResult<()>

Process a block of signal

fn latency(&self) -> usize

Latency in samples (for delay compensation)

impl<T: Transcendental, const B: usize> Send for WriteHead<T, B>

impl<T: Transcendental, const B: usize> Sync for WriteHead<T, B>