AudioSource.resource

Description

The default AudioResource to play.

You can also use this property to set the AudioResource that plays next.

using UnityEngine;

[RequireComponent(typeof(AudioSource))]
public class ExampleClass : MonoBehaviour
{
    public AudioResource m_Resource;

    public void PlayAudioResource()
    {
        AudioSource audioSource = GetComponent<AudioSource>();
        audioSource.resource = m_Resource;
        audioSource.Play();
    }
}