Unable to properly mask an audio waveform

[stud62339471]

Hi there, 

I'm trying to create a wave from within an object and mask it out (circle) . Am able mask a majority of the wave form but parts of it crosses outside the mask. 

Any help would be grateful! 

Thanks

Stuart

[Mylenium · Accepted solution]

Don't apply the mask directly, but use a track matte. Create a separate layer above with a circle shape, assign it as the track matte for the lower layer with teh waveform effect.

Mylenium

[stud62339471]

Amazing, thank you so much!!