Patent ID: 8817999
Filing Date: 2014-08-26
Classification: G10K,H04K,H04M,H04R,H05K

Abstract:
1. A sound masking system for masking sound in a physical environment, said sound masking system comprising: a communication network for said physical environment; a plurality of sound masking units, at least some of said sound masking units including a digital processor configured for a sound masking signal generator and a communication interface for coupling to said communication network for receiving a plurality of control signals over said communication network, one of said control signals being a masking volume signal and a another, separate one of the control signals being a masking frequency signal, and said sound masking signal generator being responsive to said masking volume signal and said sound masking frequency signal for generating a sound masking output signal, said sound masking output signal having a volume derived from said masking volume signal, and said sound masking output signal having a frequency characteristic derived from said sound masking frequency signal; a control unit configured to generate said control signals, said control unit configured to generate said masking volume signal and said control unit configured to separately generate said masking frequency signal, and said control unit having a communication interface for coupling to said communication network for transmitting said control signals to selectively control operations of said plurality of sound masking units.