Attention: Here be dragons

This is the latest (unstable) version of this documentation, which may document features not available in or compatible with released stable versions of Godot.

Checking the stable version of the documentation...

AudioEffectSpectrumAnalyzer

繼承： AudioEffect < Resource < RefCounted < Object

Creates an AudioEffectInstance which performs frequency analysis and exposes results to be accessed in real-time.

說明

Calculates a Fourier Transform of the audio signal. This effect does not alter the audio. Can be used for creating real-time audio visualizations, like a spectrogram.

This resource configures an AudioEffectSpectrumAnalyzerInstance, which performs the actual analysis at runtime. An instance should be obtained with AudioServer.get_bus_effect_instance() to make use of this effect.

教學

屬性

float

buffer_length

2.0

FFTSize

fft_size

2

列舉

enum FFTSize: 🔗

FFTSize FFT_SIZE_256 = 0

使用 256 個取樣點進行快速傅立葉轉換。延遲最低，但長時間穩定性最差。

FFTSize FFT_SIZE_512 = 1

使用 512 個取樣點進行快速傅立葉轉換。延遲低，但長時間穩定性較差。

FFTSize FFT_SIZE_1024 = 2

使用 1024 個取樣點進行快速傅立葉轉換。延遲與穩定性折衷。

FFTSize FFT_SIZE_2048 = 3

使用 2048 個取樣點進行快速傅立葉轉換。延遲高，但穩定。

FFTSize FFT_SIZE_4096 = 4

使用 4096 個取樣點進行快速傅立葉轉換。延遲最高，但穩定性最佳。

FFTSize FFT_SIZE_MAX = 5

代表 FFTSize 列舉的大小。

屬性說明

float buffer_length = 2.0 🔗

  • void set_buffer_length(value: float)

  • float get_buffer_length()

The length of the buffer to keep, in seconds. Higher values keep data around for longer, but require more memory. Value can range from 0.1 to 4.

FFTSize fft_size = 2 🔗

快速傅立葉轉換緩衝區大小。值越高頻譜分析隨時間越平滑，但延遲也越大；突發振幅變化時此延遲特別明顯。