measuring sound

Advice on testing efficacy of baffles to cut out certain frequencies includes a number of methods:

1. Play white noise and use sound meter to measure sound levels from a microphone close to the ear, with and without the baffles
2. Play white noise and record with and without baffles. Import into Logic Pro to view frequencies that are affected

this head size screen in the sound booth at university of brighton is lined with acoustic foam to further dampen sound for voice recording purposes. Can this be transposed to a portable/wearable accessory to make it easier to speak in noisy cafe environments?