Sound effects and sound visualization in Artikulate

Sound effects and visualization

Artikulate is an application which focuses upon improving the users' pronunciation skills by repeating native speaker recordings, recording that try and comparing both. By repeating these trials, a learner can continuously improve his/her language skills. But when a user records his/her own voice through a microphone invariably there are noises in the recorded audio and it becomes harder to analyze how well the user is faring.

So we would like to have a filter implemented within Artikulate and also a way of visually representing how two recorded audio waves differ.