Patent ID: 9431984
Filing Date: 2016-08-30
CPC Classification: H03G,H03M

Claim Text:
1. An acoustic apparatus comprising: a signal processor configured to perform an operation of generating an analog audio signal based on a digital audio signal; and a controller configured to control the signal processor, wherein the signal processor includes a filter configured to filter the digital audio signal, and a converter configured to convert the signal output from the filter to the analog audio signal, wherein in a case where the digital audio signal includes a first part corresponding to a first silent part of the analog audio signal, a second part subsequent to the first part and corresponding to a sound part of the analog audio signal, and a third part subsequent to the second part and corresponding to a second silent part of the analog audio signal, the signal processor starts the operation in a period during which the first part is being input, and the signal processor stops the operation in a period during which the third part is input or after the period during which the third part is input, wherein the controller detects the first part and the third part, and causes the signal processor to start the operation in response to the detection of the first part and stop the operation in response to the detection of the third part, and wherein the controller causes the filter to start the operation in response to the detection of the first part and stop the operation in response to the detection of the third part.