love.audio.getNumSources
 Removed in LÖVE 0.9.0  
 It has been renamed to love.audio.getSourceCount. 
Gets the current number of simultaneously playing sources.
Function
Synopsis
numSources = love.audio.getNumSources( )
Arguments
None.
Returns
number numSources- The current number of simultaneously playing sources.
 
See Also
 
    © 2006–2020 LÖVE Development Team
Licensed under the GNU Free Documentation License, Version 1.3.
    https://love2d.org/wiki/love.audio.getNumSources