Read reads a specific sample from the input frame

NewIn registers a new input

Write writes a sample to the internal buffer

DefineSymbol defines a symbol.

NewOut registers a new output

NewUnit creates a new Unit that defaults to audio rate.

ArgExpectError returns an error that indicates requirements for an argument

CheckArityEqual requires the argument list to be of a certain length

Errorf creates a new error with a specific formatting

NewIO returns a new IO

Run starts the Engine; running the audio stream

Frequency returns a scalar value in Hz

Wrap creates a new error with another error as its cause

Clamp limits a value to a specific range

ReadSlow reads a specific sample from the input frame at a slow rate

Static returns a deterministic *rand.Rand for use in tests.

NewNode creates a new Node in the Graph.

New returns a new Sink

Builders returns all Builders for all Units provided by this package.

Decode loads a struct with the contents of the raw Config object.

ExposeOutputProcessor registers a new output that is also a Processor

NewEnvironment returns a new Environment.

New returns a new Runtime

ExternalNeighborCount returns the count of neighboring nodes outside of the Unit

New returns a new Graph.

WithMessageChannel establishes a MessageChannel to be used for sending and receiving messages within the Engine.

CheckArityAtLeast requires the argument list to be at least certain length

Duration returns a scalar value (float64) in MS

NewOut returns a new output

Eval evaluates expressions obtained via the Parser. It uses a trampoline loop to iteratively resolve TailCall values, enabling tail call optimization

NewConnection creates a connection between two Nodes.

Attach connects this unit and its inputs/outputs to a Graph

ExternalNeighborCount returns the count of neighboring nodes outside of the parent Unit

TailEval returns a TailCall that defers evaluation of node to the trampoline loop in Eval. Special forms should use this for their tail-position sub-e

Mount adds a unit to the graph.

New creates a new error

Parse parses lisp expressions in the content from an io.Reader.

TickRelative advances the allpass filter state with a delay length relative to the length of the delay line

NewDelayLine returns a new DelayLine of a specific maximum size in milliseconds

AcceptTypes creates a formatted list of accepted types for humans

GetSymbol performs a symbol lookup and returns the value if its present. If the symbol cannot be found in the current Environment context, it advances

NewAllPass returns a new AllPass

NewMessage creates a new Message to be sent to the Engine for evaluation.

Patch patches a value into an input.

HasSource returns whether or not we have an inbound connection

ReadAbsolute reads a specific sample offset from the DelayLine

SetValue sets the Prop's value using its internal PropSetterFunc (if it has one)

Sin is a lookup table version of math.Sin

Branch returns a new child context Environment.

Exists checks whether the Node exists in the graph.

InNeighborCount returns the count of inbound neighbors

OutNeighborCount returns the count of outbound neighbors

Tick advances the filter's state

Wrapf creates a new error with a specific formatting with another error as its cause

DestinationCount returns the number of outbound connections to this output

ExtractFloat64 extracts a float64 from a value that may be int or float64.

Fill fills the internal frame with a specific constant value

HasChanged returns whether or not the Graph state is dirty.

Load populates a lisp.Environment with builtin symbols.

ReadSlowInt reads a specific sample from the input frame at a slow rate

RemoveConnection removes a connection between two Nodes.

Errors returns a channel that expresses any errors during operation of the Engine

NewGraph returns a new Graph.

NewIn returns a new input

Patch connects a one Unit's Out to another's In. It also creates an edge on a graph to track the connection.

Size returns the number of units in the graph.

Tick advances the filter's state

TopologicalSort returns a list of nodes in topological order.

Cubic performs cubic interpolation

ExtractArg extracts a typed value from args[i] with bounds checking. argPos in error messages is 1-indexed (i+1).

Hermite performs Hermite interpolation

InNeighbors returns only neighboring Nodes with an inbound connection to this Node