Inheritance #

AudioEffectSpectrumAnalyzer #

is_refcounted, is_instantiable, resource, core, not_builtin_classes

Audio effect that can be used for real-time audio visualizations.

This audio effect does not affect sound output, but can be used for real-time audio visualizations.

This resource configures an AudioEffectSpectrumAnalyzerInstance, which performs the actual analysis at runtime. An instance can be obtained with AudioServer.get_bus_effect_instance.

See also AudioStreamGenerator for procedurally generating sounds.

Members #

var buffer_length: float = 2.0#

The length of the buffer to keep (in seconds). Higher values keep data around for longer, but require more memory.

var fft_size = FFT_SIZE_1024#

The size of the Fast Fourier transform buffer. Higher values smooth out the spectrum analysis over time, but have greater latency. The effects of this higher latency are especially noticeable with sudden amplitude changes.

var tap_back_pos: float = 0.01#

Methods #

Annotations #

Constants #

const FFT_SIZE_256 = 0 enum FFTSize#

Use a buffer of 256 samples for the Fast Fourier transform. Lowest latency, but least stable over time.

const FFT_SIZE_512 = 1 enum FFTSize#

Use a buffer of 512 samples for the Fast Fourier transform. Low latency, but less stable over time.

const FFT_SIZE_1024 = 2 enum FFTSize#

Use a buffer of 1024 samples for the Fast Fourier transform. This is a compromise between latency and stability over time.

const FFT_SIZE_2048 = 3 enum FFTSize#

Use a buffer of 2048 samples for the Fast Fourier transform. High latency, but stable over time.

const FFT_SIZE_4096 = 4 enum FFTSize#

Use a buffer of 4096 samples for the Fast Fourier transform. Highest latency, but most stable over time.

const FFT_SIZE_MAX = 5 enum FFTSize#

Represents the size of the FFTSize enum.

Constructors #

Enums #

FFTSize#

Operators #

Signals #

Theme Items #

Tutorials #