Integrated active noise control communication headsets

In this paper, we present the development and evaluation of integrated active noise control (ANC) communication headsets. This integrated system provides cancellation of noise that corrupted both the transmitted near-end speech and the received far-end speech. It utilizes an adaptive feedback ANC filter to reduce acoustic noise that corrupts the far-end signal inside the ear cups of the headsets, and uses an adaptive noise-canceling filter to enhance the near-end speech before sending it to the far-end. This integrated approach minimizes the required signal processing components, and optimizes the functionality of each processing block for combining noise cancellation tasks in the communication headsets. Computer simulations using recorded noise, speech signals, and measured headset impulse response are carried out to evaluate the performance of this integrated system.