/// <summary>
    /// ボリュームの設定
    /// </summary>
    /// <param name="soundCategory">サウンドカテゴリ</param>
    /// <param name="volume">ボリューム (0-1)</param>
    public void SetVolume(SoundCategory soundCategory, float volume)
    {
        string volumeName = null;

        switch (soundCategory)
        {
        case SoundCategory.Master: volumeName = MasterVolumeName; break;

        case SoundCategory.Bgm: volumeName = BgmVolumeName; break;

        case SoundCategory.Se: volumeName = SeVolumeName; break;

        case SoundCategory.Voice: volumeName = VoiceVolumeName; break;

        default: Debug.LogWarning($"Invalid SoundCategory. [soundCategory={soundCategory}]"); break;
        }

        if (!string.IsNullOrEmpty(volumeName))
        {
            float dbVolume = SoundUtil.CalcGetVolumeToDb(volume);
            audioMixer.SetFloat(volumeName, dbVolume);
        }
    }