Hyperresonance is usually caused by emphysema. Remember that your chest should be resonant and if it is too resonant (hyperresonant), then you have too much air in your lungs.

resonance, hyperresonance, flat, dull, typani

Hyper-resonance (generally described upon percussion of the chest) is typically seen in Pneumothorax, where an accumulation of air in the pleural space causes compression / collapse of the lung on the affected side. Note that hyper-resonance is a late sign, and is seen infrequently.