Creating the Scream

At the end of the trailer we want to make the audience jump by having the ghost scream. Naturally just a small recorded scream would not achieve the desired effect and therefore we used audacity to enhance the scream and add various effects to enable the scream to sound horrific. 

First of all we added an echo sound effect to enhance the scream and try to leave a spine'chilling sound ringing in the ears of the audience

However, the echo was not enough so we added a paulstretch effect which stretched out the scream and this is what turned the scream into quite a horrific noise. Although this had worked great it meant that the scream was now too long and we wanted it to be shorter so we cut it down and now we have a scary noise which will hopefully make the audience jump.