AudioSource.mute

설명

Un- / Mutes the AudioSource. Mute sets the volume=0, Un-Mute restore the original volume.

// Mutes-Unmutes the sound from this object each time the user presses space.
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    AudioSource audio;

    void Start()
    {
        audio = GetComponent<AudioSource>();
    }

    void Update()
    {
        if (Input.GetKeyDown(KeyCode.Space))
            if (audio.mute)
                audio.mute = false;
            else
                audio.mute = true;
    }
}