3-dimensional sound (3D sound) is a type of manipulation of audio output to give the illusion that sound is coming from different directions. It has become possible in Scratch 3.0 due to several new Sound Blocks, mainly set [ v] effect to ()::sound and change [ v] effect by ()::sound.
This technique is only effective on devices using stereo speakers, headphones, or earphones. If you are using monophone speakers, it will not have the desired effect.
Scripts
To make 3-dimensional sound, create the following scripts in the sprite that will play the sound:
when gf clicked repeat until <(playing sound) = [0]> play sound [sound v] until done end when gf clicked repeat until <(playing sound) = [0]> set volume to ((200) - (distance to [listener v])) set [pan left/right v] effect to ((x position) - ([x position v] of (listener v))) end
If the sound has to repeat infinitely instead of the script repeating until something happens, the repeat until blocks should be changed to forever blocks:
when gf clicked forever play sound [sound v] until done end when gf clicked forever set volume to ((200) - (distance to [listener v])) set [pan left/right v] effect to ((x position) - ([x position v] of (listener v))) end
