Creating the sound effect
 

Hi,
I am working on how to play the sound in vizard that can change the volume when the distance of two objects changes which means: I have a target in some position and I move my right hand, when my hand is moving closer to the target, the volume of the sound increases, otherwise decreases.

I know the target.playsound() function, which can calculate the distance between the target and the two LEDs, then play the spatialized sound automatically.

And now I know how to calculate the distance between the target and the hand, but I don't know how the change the volume when the distance changes.

Are you saying you want to use the .playsound command but also manipulate the sound volume yourself? If so, look at the following:

Code:

---

import viz
viz.go()

ball = viz.add('ball.wrl',pos = [0,1.8,2])

slider = viz.addSlider()
slider.setPosition(0.5,0.2)
slider.set(1)

sound = ball.playsound( 'boing!.wav', viz.LOOP )

def changeVolume(value):
        sound.volume(value)
       
vizact.onslider(slider,changeVolume)

---

Actually, I don't want a slider, I want the volume changes automatically when the distance of the hand and the target changes, is there anyway to do that?