What alarm tone is effective to wake you up in the morning

 Now a days wake up alarm clock have become common place in cell phones. If you tell any body now that there were separate analog alarm clock devices, you can surely expect uncomprehending stares,probably. The decision to select the kind of ringtone in alarm clock should be taken after considering the following factors. The range of audible frequency that's covered by the alarm sound from the cell phone. Usually soft melodic alarm tones cover only a  very small frequency of the audible spectrum to humans. For example, the sounds deployed in horror films have the full audible spectrum of sounds at the same instant delivering a blow to the human ear drum, which has the effect of shocking the hearer .the effect is heightened by the relative absence if noise just few moments before the horror sound is deployed. In the film "Kung fu Hustle " too , the quality of sound (which is a physical manifestation of energy)is used to good effect using street performers of stringed musical instruments to devastating effect against kung-fu masters.  So when ever you need to be made awake after a good night sleep, select a alarm tone, that covers all the human audible sound spectrum.