Patent ID: 9245517
Filing Date: 2016-01-26
CPC Classification: G10K,G10L,H04R

Claim Text:
1. A noise reduction audio reproducing device comprising: a noise cancel processing unit comprising at least one processor programmed to apply digital feedforward filtering to noise collected by a microphone to provide a filtered noise signal, wherein the noise cancel processing unit is arranged to output a noise cancellation audio signal based on the filtered noise signal; a noise reduction processing unit configured to provide an emphasized audio signal by emphasizing an audio component in a first audio signal to be listened to; a synthesizing unit arranged to synthesize an output audio signal based on the noise cancellation audio signal and said emphasized audio signal, and to supply said output audio signal to an electro-acoustic converting unit; and a control unit configured to perform control so as to supply said emphasized audio signal to said synthesizing unit based on a control signal, wherein the control signal, when applied to activate a switch circuit coupled between the noise reduction processing unit and the synthesizing unit, enables the emphasized audio signal to be supplied from said noise reduction processing unit to the synthesizing unit.