Question about text graphics and audio clips. How do i input text from the audio filename?
Premiere would be a pain in the rear for doing this. You should opt for after effects, create a text and set the text content as the filename using an expression. Then you can just copy+paste this for every file and the name will be applied automatically.
Open your text-layer, alt+click on the "source-text"-stopwatch to create an expression. In this, type 

thisComp.layer(2).name


IMPORTANT: For the expression to work, the audio-file must be placed so that it's layer 2, i.e. under the text-layer. If you want to change the position of the layer, just put the place of it in the expression, replacing the "(2)".

Now all you have to do is copy and paste that text-layer containing the expression, and (if the sound-files are all in the same position in each comp) the text-layer will automatically change to the name of your file.