Combined isolation and masking is a great feature! You might consider working with the author of Noise Machines[0] for a later iteration. That site is a lifes

Combined isolation and masking is a great feature! You might consider working with the author of Noise Machines[0] for a later iteration. That site is a lifesaver in a noisy office. [0] http://mynoise.net/noiseMachines.php http://mynoise.net/noiseMachines.php