AudioUtils class

Utility class for various audio processing, normalization, and analysis tasks.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

amplitudeToDecibels(double amplitude) → double

Converts linear amplitude to decibels.

calculateAverageFrequency(List<double> spectrum) → double

Calculates the average frequency from spectrum data.

calculateRMS(List<double> samples) → double

Calculates the RMS (Root Mean Square) of audio samples.

decibelsToAmplitude(double decibels) → double

Converts decibels to linear amplitude.

frequencyToLogScale(double frequency) → double

Converts frequency to a logarithmic scale for better visualization.

isAudioActive(AudioData audioData, double threshold) → bool

Detects if audio is above a certain threshold.

lowPassFilter(double input, double previousOutput, double alpha) → double

Applies a low-pass filter to reduce high-frequency noise.

normalizeAmplitude(double amplitude) → double

Normalizes a raw audio amplitude to a standard 0.0 to 1.0 range.

smoothValue(double currentValue, double previousValue, double factor) → double

Applies exponential smoothing to currentValue based on a previousValue.