Question

JavaScript => public static function GetSpectrumData(samples: float[], channel: int, window: FFTWindow): void;
C# => public static void GetSpectrumData(float[] samples, int channel, FFTWindow window);

Parameters 参数

samples	The array to populate with audio samples. Its length must be a power of 2. 音频采样数据填充数组，该长度必须是2次幂。
channel	The channel to sample from. 采样的声道。
window	The FFTWindow type to use when sampling. 当采样时使用的FFTWindow类型。

Description 描述

Provides a block of the listener (master)'s spectrum data.

提供一个侦听器（主）的频谱数据块。

The array given in the samples parameter will be filled with the requested data.

给定的采样参数数组将被请求的数据填充。

Number of values (the length of the samples array) must be a power of 2. (ie 128/256/512 etc). Min = 64. Max = 8192. Use window to reduce leakage between frequency bins/bands. Note, the more complex window type, the better the quality, but reduced speed.

采样数组的长度必须是2次幂。（例如128/256/512）最小64，最大8192。使用FFTWindow以减少bins/bands之间频率泄漏。注意，越复杂的窗口类型，质量越好，但减小速度。

This function will use the sampling rate specified in AudioSettings.outputSampleRate, and NOT the sampling rate specified for the audio clip.

这个函数将使用AudioSettings.outputSampleRate指定的采样率，而不是音频剪辑指定的采样率。

See Also: AudioListener.GetOutputData, AudioSource.GetSpectrumData, AudioSource.GetOutputData.

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JavaScript => public static function GetSpectrumData(numSamples: int, channel: int, window: FFTWindow): float[];
C# => public static float[] GetSpectrumData(int numSamples, int channel, FFTWindow window);

废弃注意，GetSpectrumData的返回float[]方法被弃用。

Description 描述

Deprecated Version. Returns a block of the listener (master)'s spectrum data.

This variation of the function allocates a new array each time it is called. Use the Non-alloc version instead for better performance.

AudioListener