3Dの音の減衰に関して
https://styly.cc/ja/tips/unity_3dsound/
複数のAudioSourceをアタッチする際
AudioSource[] audio_source;
void Start(){
audio_source = this.GetComponents<AudioSource>();
}
void Update(){
audio_source[0].Play();
audio_source[1].Play();
}
参考URL:https://squmarigames.com/2018/12/19/unity-beginner-audiosource/