【Unity】BGM・SEの使い方｜ミュート、ループ、音量・音程、再生、停止、スクリプト

using UnityEngine;

public class BGMExample : MonoBehaviour
{
    public AudioSource audioSource;

    //BGMを開始
    void BGMStart()
    {
        audioSource.Play();
    }
    //BGMを停止
    void BGMStop()
    {
        audioSource.Stop();
    }
    //BGMを一時停止
    void BGMPause()
    {
        audioSource.Pause();
    }
    //BGMを再開
    void BGMUnPause()
    {
        audioSource.UnPause();
    }
}

public AudioSource audioSource;
public AudioClip jumpSE;

void Update()
{
    //「Space」キーを押すとSEが流れる
    if (Input.GetKeyDown(KeyCode.Space))
    {
        audioSource.PlayOneShot(jumpSE);
    }
}

public class SoundManager : MonoBehaviour
{
    public static SoundManager instance;
    public AudioSource audioSource;
    public AudioClip jumpSE;
    public AudioClip hitSE;

    void Awake()
    {
        if (instance == null)
        {
            instance = this;
            DontDestroyOnLoad(gameObject);
        }
        else
        {
            Destroy(gameObject);
        }
    }

    public void PlaySE(AudioClip clip)
    {
        audioSource.PlayOneShot(clip);
    }
}

SoundManager.instance.PlaySE(SoundManager.instance.jumpSE);

IEnumerator FadeInBGM(AudioSource source, float duration)
{
    float time = 0;
    while (time < duration)
    {
        source.volume = Mathf.Lerp(0, 1, time / duration);
        time += Time.deltaTime;
        yield return null;
    }
    source.volume = 1;
}

IEnumerator FadeOutBGM(AudioSource source, float duration)
{
    float time = 0;
    float startVolume = source.volume;

    while (time < duration)
    {
        source.volume = Mathf.Lerp(startVolume, 0, time / duration);
        time += Time.deltaTime;
        yield return null;
    }
    source.Stop();
    source.volume = startVolume;
}

using System.Collections.Generic;
using UnityEngine;

public class AudioPool : MonoBehaviour
{
    public AudioSource audioPrefab;
    private Queue<AudioSource> pool = new Queue<AudioSource>();

    public AudioSource GetAudioSource()
    {
        if (pool.Count > 0)
        {
            AudioSource source = pool.Dequeue();
            source.gameObject.SetActive(true);
            return source;
        }
        return Instantiate(audioPrefab);
    }

    public void ReturnAudioSource(AudioSource source)
    {
        source.gameObject.SetActive(false);
        pool.Enqueue(source);
    }
}