| 摘要 |
<p>A personal sound masking system (figure 3) for use in an individual workspace provides an optimized acoustic background environment by delivering a sound masking signal that is speficically matched to the individual user's location and physical relationship to other nearby office. The sound masking system employs multiple loudspeakers (16) and multiple mutually incoherent channels in order to obtain a desired degree of diffuseness. A control module (figure 6) includes memory (80) that stores data representing a number of samples of a masking signal segment and generates different series of data values each representing a different masking signal. The sound masking system also includes a user-accessible volume control (20) to enable user to adjust the sound level to achieve optimum sound masking in his or her individual workspace.</p> |
