Why this code didn't work?

[Tycka]

This code must voice chat do local but its didn't work voice chat still global

local nearbyPlayers = {} 
  
addEventHandler( 'onPlayerVoiceStart', root, 
    function() 
          local chatRadius = 10 
          local posX, posY, posZ = getElementPosition( source ) 
          local chatSphere = createColSphere( posX, posY, posZ, chatRadius ) 
          nearbyPlayers = getElementsWithinColShape( chatSphere, "player" ) 
          destroyElement( chatSphere ) 
          local empty = exports.voice:getNextEmptyChannel ( ) 
          exports.voice:setPlayerChannel(source, empty) 
           for index, player in ipairs (nearbyPlayers) do 
                  exports.voice:setPlayerChannel(player, empty) 
           end 
    end) 
     
addEventHandler("onPlayerVoiceStop",root, 
    function() 
         exports.voice:setPlayerChannel(source) 
         for index, player in ipairs (nearbyPlayers) do 
                  exports.voice:setPlayerChannel(player) 
         end 
          nearbyPlayers = {} 
    end) 

[Bonsai]

First of all, there is a function to get the distance between points.

So you don't need to create a colshape all the time.

[Tycka]

How should it look like?