AudioEffectSpectrumAnalyzer

Inherits: AudioEffect < Resource < Reference < Object Audio effect that can be used for real-time audio visualizations.

Description

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

Tutorials

• Audio Spectrum Demo
• Godot 3.2 will get new audio features

  Properties

  Enumerations

  FFT_Size:
• FFT_SIZE_256 = 0 —- Use a buffer of 256 samples for the Fast Fourier transform. Lowest latency, but least stable over time.
• FFT_SIZE_512 = 1 —- Use a buffer of 512 samples for the Fast Fourier transform. Low latency, but less stable over time.
• FFT_SIZE_1024 = 2 —- Use a buffer of 1024 samples for the Fast Fourier transform. This is a compromise between latency and stability over time.
• FFT_SIZE_2048 = 3 —- Use a buffer of 2048 samples for the Fast Fourier transform. High latency, but stable over time.
• FFT_SIZE_4096 = 4 —- Use a buffer of 4096 samples for the Fast Fourier transform. Highest latency, but most stable over time.
• FFT_SIZE_MAX = 5 —- Represents the size of the FFT_Size enum.

  Property Descriptions

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

• FFT_Size fft_size 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.

• float tap_back_pos