合唱调制速率（单位：赫兹）。0.0 到 20.0。默认值为 0.8 赫兹。
using UnityEngine;
[RequireComponent(typeof(AudioSource))] [RequireComponent(typeof(AudioChorusFilter))] public class Example : MonoBehaviour { // Set the rate on the chorus filter to 15hz. void Start() { GetComponent<AudioChorusFilter>().rate = 15; } }