STFT class

Performs STFTs (Short-time Fourier Transforms).

STFT breaks up the input into overlapping chunks, applies an optional window, and runs an FFT. This is also known as a spectrogram.

Constructors

STFT(int chunkSize, [Float64List? _win])

Constructs an STFT object of the given size, with an optional windowing function.

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

size → int

The size of the chunks this STFT breaks the input into.

no setter

Methods

flush(dynamic reportChunk(Float64x2List)) → void

Runs STFT on any remaining input in the buffer.

frequency(int index, double samplesPerSecond) → double

Returns the frequency that the given index of FFT output represents.

indexOfFrequency(double freq, double samplesPerSecond) → double

Returns the index in the FFT output that corresponds to the given frequency. This is the inverse of frequency.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

run(List<double> input, dynamic reportChunk(Float64x2List), [int chunkStride = 0]) → void

Runs STFT on input.

runAndCopy(List<double> input, [int chunkStride = 0]) → List<Float64x2List>

Runs STFT on input.

stream(List<double> input, dynamic reportChunk(Float64x2List), [int chunkStride = 0]) → void

Runs STFT on input.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited