Hi,

I am composer and sound designer that is trying to learn some codeing  Could You help me and tell me what should i add to change volume to 1.0F when enter trigger

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class AudioPlay : MonoBehaviour {

    public AudioClip strings_1;
    AudioSource audioSource;

    // Use this for initialization
    void Start () {

        audioSource = GetComponent<AudioSource> (); 

        audioSource.PlayOneShot (strings_1, 0.0F );   - when game starts i want it to start but with 0 volume

    }

    // Update is called once per frame
    void Update () {

    }

    void OnTriggerEnter2D (Collider2D other) 
    {

        if(other.gameObject.tag == "slotviolin")

        {
            Debug.Log ("coilder works");
    
        // how can i change volume to 1.0F and if it's possible how to make it smooth ?

        }
    }
}

Thanks

Thx Rutin,

Somehow i have missed this tutorial with the solution . I have to use mixer snapshots !

I still have a problem with UNITY. I am making 2D game so i changed it on tutorial script:

The problem is that i am working on UI panels and colliders doesn't work normaly here. I thing I have to use EventTrigger Componet 

https://imgur.com/a/hEM59

https://imgur.com/a/YkXuY

but what next ???

using UnityEngine;
using System.Collections;
using UnityEngine.Audio;

public class InOutMusic : MonoBehaviour {

    public AudioMixerSnapshot OutSlot;
    public AudioMixerSnapshot InSlot;
    public AudioClip[] stings;
    public AudioSource stingSource;
    public float bpm = 128;

    private float m_TransitionIn;
    private float m_TransitionOut;
    private float m_QuarterNote;

    // Use this for initialization
    void Start () 
    {
        m_QuarterNote = 60 / bpm;
        m_TransitionIn = m_QuarterNote;
        m_TransitionOut = m_QuarterNote * 32;

    }

    void OnTriggerEnter2D (Collider2D other) - i have added 2d
    {
        if (other.CompareTag("slotviolin"))
        {
            
            InSlot.TransitionTo(m_TransitionIn);

        }
    }

    void OnTriggerExit2D(Collider2D other) - i have added 2d
    {
        if (other.CompareTag("slotviolin"))
        {
            OutSlot.TransitionTo(m_TransitionOut);
        }
    }

}