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 [method AudioServer.get_bus_effect_instance]. See also [AudioStreamGenerator] for procedurally generating sounds.
https://godotengine.org/asset-library/asset/2762
- The length of the buffer to keep (in seconds). Higher values keep data around for longer, but require more memory.
- The size of the [url=https://en.wikipedia.org/wiki/Fast_Fourier_transform]Fast Fourier transform[/url] 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.
Use a buffer of 256 samples for the Fast Fourier transform. Lowest latency, but least stable over time.
Use a buffer of 512 samples for the Fast Fourier transform. Low latency, but less stable over time.
Use a buffer of 1024 samples for the Fast Fourier transform. This is a compromise between latency and stability over time.
Use a buffer of 2048 samples for the Fast Fourier transform. High latency, but stable over time.
Use a buffer of 4096 samples for the Fast Fourier transform. Highest latency, but most stable over time.
Represents the size of the [enum FFTSize] enum.