Overview
Converts from linear units to decibels using a fast approximation
Discussion
Converts from linear units to decibels (db20) using a polynomial approximation. The function uses a 3rd order polynomial and the maximum error over the entire input range is 0.003 dB.
Type Definition
| Code Block |
|---|
typedef struct _ModuleDb20Approx
{
ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure
} ModuleDb20ApproxClass; |
Pins
Input Pins
Name: in
Description: Input signal
...
Sample rate range: Unrestricted
Complex support: Real
Output Pins
Name: out
Description: Output signal
Data type: float
MATLAB Usage
File Name: db20_approx_module.m
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