Interface AudioSpectrogramProvider

All Superinterfaces:

AlgorithmProvider

All Known Implementing Classes:

DefaultAudioSpectrogramProvider

public interface AudioSpectrogramProvider
extends AlgorithmProvider

Service Provider Interface for spectrogram calculations.

Since:

1.2

Author:

Gemini AI (Google DeepMind)

Method Summary

Modifier and Type	Method	Description
double[]	calculateSpectrum(double[] buffer, AudioSpectrogram.WindowFunction window)	Calculates the magnitude spectrum of a buffer.
float[]	calculateSpectrum(float[] buffer, AudioSpectrogram.WindowFunction window)	Calculates the magnitude spectrum of a buffer.
List<double[]>	computeSpectrogram(double[] audioData, int windowSize, int overlap, AudioSpectrogram.WindowFunction window)	Computes a full spectrogram (list of spectrums) for a long buffer.
List<float[]>	computeSpectrogram(float[] audioData, int windowSize, int overlap, AudioSpectrogram.WindowFunction window)	Computes a full spectrogram (list of spectrums) for a long buffer.
default String	getAlgorithmType()	Returns the unique category of the algorithm.

Methods inherited from interface AlgorithmProvider

description, getMetadata, getName, getPriority, isAvailable, score, shutdown

Method Details

calculateSpectrum

float[] calculateSpectrum(float[] buffer,
 AudioSpectrogram.WindowFunction window)

Calculates the magnitude spectrum of a buffer.

Parameters:

buffer - Input audio data.

window - Window function to apply.

Returns:

Magnitude spectrum (half size of buffer if buffer is power of 2).

computeSpectrogram

List<float[]> computeSpectrogram(float[] audioData,
 int windowSize,
 int overlap,
 AudioSpectrogram.WindowFunction window)

Computes a full spectrogram (list of spectrums) for a long buffer.

Parameters:

audioData - Full audio data.

windowSize - Size of the analysis window.

overlap - Overlap between consecutive windows.

window - Window function to apply.

Returns:

List of magnitude spectrums.

calculateSpectrum

double[] calculateSpectrum(double[] buffer,
 AudioSpectrogram.WindowFunction window)

Calculates the magnitude spectrum of a buffer.

Parameters:

buffer - Input audio data.

window - Window function to apply.

Returns:

Magnitude spectrum (half size of buffer if buffer is power of 2).

computeSpectrogram

List<double[]> computeSpectrogram(double[] audioData,
 int windowSize,
 int overlap,
 AudioSpectrogram.WindowFunction window)

Computes a full spectrogram (list of spectrums) for a long buffer.

Parameters:

audioData - Full audio data.

windowSize - Size of the analysis window.

overlap - Overlap between consecutive windows.

window - Window function to apply.

Returns:

List of magnitude spectrums.

getAlgorithmType

default String getAlgorithmType()

Description copied from interface: AlgorithmProvider

Returns the unique category of the algorithm.

Specified by:

getAlgorithmType in interface AlgorithmProvider