AudioSource.pitch

설명

The pitch of the audio source.

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(AudioSource))]
public class ExampleClass : MonoBehaviour
{
    public int startingPitch = 4;
    public int timeToDecrease = 5;
    AudioSource audioSource;

    void Start()
    {
        audioSource = GetComponent<AudioSource>();
        audioSource.pitch = startingPitch;
    }

    void Update()
    {
        if (audioSource.pitch > 0)
            audioSource.pitch -= Time.deltaTime * startingPitch / timeToDecrease;
    }
}