iphone - Trying to play a Random Sound using SimpleAudioEngine, no sound -

so app going produce made 1 sound upon swiping up. code was

[[simpleaudioengine sharedengine] playeffect:@"swoosh.mp3"]; ccmoveto *moveto=[ccmoveto actionwithduration:0.50 position:ccp(currentskewed.position.x, [uiscreen mainscreen].bounds.size.height+300)]; ccscaleto *scalto=[ccscaleto actionwithduration:0.30 scale:0.5]; ccsequence *seq=[ccsequence actionone:moveto two:[cccallfuncn actionwithtarget:self selector:@selector(removesprite:)]]; [currentskewed runaction:seq]; [currentskewed runaction:scalto]; [skewdarray removeobject:currentskewed]; currentskewed=nil; 

i decided want there 3 sounds randomly play upon each swipe rather one. here's did.

nsstring *soundname;  int randsound = arc4random() % 3; switch (randsound) {     case 0:         soundname = @"swoosh1.mp3";         break;     case 1:         soundname = @"swoosh2.mp3";         break;     case 2:         soundname = @"swoosh3.mp3";         break;  } [[simpleaudioengine sharedengine] playeffect:@"soundname"]; ccmoveto *moveto=[ccmoveto actionwithduration:0.50 position:ccp(currentskewed.position.x, [uiscreen mainscreen].bounds.size.height+300)]; ccscaleto *scalto=[ccscaleto actionwithduration:0.30 scale:0.5]; ccsequence *seq=[ccsequence actionone:moveto two:[cccallfuncn actionwithtarget:self selector:@selector(removesprite:)]]; [currentskewed runaction:seq]; [currentskewed runaction:scalto]; [skewdarray removeobject:currentskewed]; currentskewed=nil; 

i made string, replaced playeffect:@"swoosh.mp3"]; playeffect:@"soundname"];

i've tried multiple variations of soundname, none seem me working. i'm fairy new @ coding, know silly i'm missing. have ideas ?

i'm pretty sure problem because still using literal string playeffect parameter intent use newly defined string variable.

try changing:

[[simpleaudioengine sharedengine] playeffect:@"soundname"]; 

to (note lack of quotes):

[[simpleaudioengine sharedengine] playeffect:soundname];