Main.cs

for (int i = 0; i < peoplesScene.Length; i++)
            {
                if (currentPeople <= changePeoples)
                {
                    peoplesScene[i].SetActive(true);
                    currentPeople++;
                    if (i % 7 == 0) {
                        peoplesScene[i].GetComponent<Animator>().SetBool("distracted", true);
                    }
                }
                else
                {
                    peoplesScene[i].SetActive(false);
                }

            }

            for (int j = 0; j < tempAudioScene.Length; j++)
            {
                audioScene[j] = tempAudioScene[j].GetComponent<AudioSource>();
                //Debug.Log("=== calculate ===");
                float vol = (((1 - (float)changePeoples) * -1) / peoplesScene.Length);
                //Debug.Log("deicmal - vol: "+vol);
                //Debug.Log("audio "+j+" volumen ->"+vol);
                if (1 - changePeoples < 1) {
                    //Debug.Log("if!!");
                    audioScene[j].volume = (vol/60);
                } else {
                    audioScene[j].volume = 0;
                }
                audioScene[j].Play();
            }