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R2012a Documentation → Signal Processing Toolbox
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Contents

Index

• Getting Started

Expanding the Toolbox

Expanding the Toolbox with Other Toolboxes

• User's Guide

Signal Processing Functions in MATLAB

• Digital Filters

• Analog Filters

• Linear Systems

• Cepstral Analysis

• Statistical Signal Processing

• Parametric Modeling

• Linear Prediction

• Multirate Signal Processing

• Waveform Generation

• Specialized Operations

• GUIs

• Dispersion Measurements and Statistics

• Measurements of Bilevel Waveforms

• Release Notes

mag2db - Convert magnitude to decibels (dB)

Syntax

ydb=mag2db(y)

Description

ydb = mag2db(y) returns the corresponding decibel (dB) value ydb for a given magnitude y. The relationship between magnitude and decibels is ydb = 20*log₁₀(y).

See Also

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