(8.D.1.2) TableLookupIntInt
- Catherine Spain
Owned by Catherine Spain
Apr 10, 2023
2 min read
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Overview
Table lookup where the input serves as an index into a lookup table
Discussion
Performs table lookup where the input pin is treated as an integer index. The length of the lookup table L is specified at instantiation time. The data on the input pin is clipped to the range [0 L-1] and then used as an index into the lookup table. The lookup table contains integer values and these are output.
Type Definition
typedef struct _ModuleTableLookupIntInt
{
ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure
INT32 L; // Number of entries in the table
INT32* table; // Table of lookup values
} ModuleTableLookupIntIntClass;Variables
Properties
Name | Type | Usage | isHidden | Default value | Range | Units |
L | int | const | 0 | 8 | Unrestricted | Â |
table | int* | parameter | 0 | [8 x 1] | Unrestricted | Â |
Pins
Input Pins
Name: in
Description: index
Data type: int
Channel range: Unrestricted
Block size range: Unrestricted
Sample rate range: Unrestricted
Complex support: Real
Output Pins
Name: out
Description: lookup value
Data type: int
MATLAB Usage
File Name: table_lookup_int_int_module.m
M = table_lookup_int_int_module(NAME, L)
Creates a table lookup module for use in the Audio Weaver environment.
The module has an integer input pin and uses this as an index to lookup
values in a table. The output data and the data in the table are also
integers. Arguments:
NAME - name of the module.
L - size of the table.Â