Document toolboxDocument toolbox

FractionalDelayV2Fract32

Overview

Provides fractional delay

Discussion

This subsystem implements a delay module which provides a fractional delay. This can be achieved by cacading the delay module and a fir filter which is designed to provide the fractional delay of 0.0to 1.0. Filter will have own set of coefficients for each fractional value which are calculated at design time.

Type Definition

typedef struct _ModuleFractionalDelayV2Fract32 { ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure INT32 maxDelay; // Maximum delay, in samples. The size of the delay buffer is maxDelay*numChannels. FLOAT32 floatCurrentDelay; // total delay awe_modDelayInstance *ConstantDelay; // Time delay in which the delay is specified in samples awe_modFIRFract32Instance *FIRmodule; // FIR fract32 filter } ModuleFractionalDelayV2Fract32Class;

Variables

Properties

Name

Type

Usage

isHidden

Default value

Range

Units

maxDelay

int

const

0

300

Unrestricted

samples

floatCurrentDelay

float

parameter

0

20

20:321

Samples

Pins

Input Pins

Name: in

Description: Audio Input

Data type: fract32

Channel range: Unrestricted

Block size range: Unrestricted

Sample rate range: Unrestricted

Complex support: Real

Output Pins

Name: out

Description: Audio output

Data type: fract32

Scratch Pins

Channel count: 1

Block size: 32

Sample rate: 48000

MATLAB Usage

File Name: fractional_delay_v2_module.m

Create a subsystem that implements fractional delay module ARGUMENTS: NAME - name of the module. MAXDELAY - maximum delay provided by the module.

Â