array delay

ArrayDelay

#example #array #data #callback #simple

Per-channel array delay line.

Module Name	array delay
Type	mtSimple
Color	clArrayModuleColor
Version	2.0
Source	examples/ArrayDelay/

Description

Delays each element of an input array by a per-element delay amount (in blocks). Uses a circular buffer delay line to apply independent delay offsets to each array element.

Parameters

#	Name	Type	I/O	Range	Callback
0	array in	ptArray	Input	—	None
1	delay in blocs	ptArray	Input	0 – 1000	ctImmediate
2	array out	ptArray	Output	—	None

How It Works

1. onCallBack: When delay input changes, reads per-element delay values into a delayBuffer[] array, clamping negatives to 0
2. onProcess: Uses a circular delay line (delayLine[MAX_DELAY][MAXBLOC]):
   • For each element: writes input at (readPos + delayBuffer[i]) % MAX_DELAY
   • Reads output from readPos
   • Increments readPos each block

Key Concepts Demonstrated

• ptArray parameter type for variable-size data
• Circular buffer delay line implementation
• Per-element delay offsets — each array element has independent delay
• ctImmediate callback for instant parameter updates on audio thread

SDK Callbacks Used

onGetModuleInfo · onGetParamInfo · onCallBack · onProcess

Related Examples

• AudioVolume — Multi-channel audio processing
• GlobalArray — Array data manipulation

SDK Reference

• UserModuleBase Class