回声延迟（毫秒）。10 至 5000。默认为 500。
using UnityEngine;
[RequireComponent(typeof(AudioSource))] [RequireComponent(typeof(AudioEchoFilter))] public class Example : MonoBehaviour { // Set the delay on the chorus filter to the max working value.
void Start() { GetComponent<AudioEchoFilter>().delay = 5000f; } }