Steps to reproduce:
1. Preview game - it's a simple test app where touching Crono causes an animation and a sound to play.
2. Export game to appmobi and run on iPhone (had similar results on CocoonJS but appmobi's sound was moderately better)
The sound is different between a PC and the iphone. On iphone, the sound is truncated - interestingly if you touch the character quickly some of the audio plays correctly.
The sound should be consistent between a PC and mobile
Internet Explorer: no
Operating system & service pack: Windows 7
Construct 2 version: Release 120.2