Audio Device, Sound Processing Method, Sound Processing Program, Sound Output Method, And Sound Output Program

Abstract

There is provided an audio device including a control section configured to cause an audio signal to be output, the audio signal including a sound signal obtained through playback of content and a sound signal received from a communication partner device, and a sound processing section configured to generate an elimination signal obtained by eliminating a given sound signal from a microphone detection signal, which is the audio signal that is propagated and detected by a microphone. The control section causes the communication partner device to transmit the elimination signal.

1 . An information processing apparatus, comprising:
 one or more circuits configured to control:
 reception of a first communication audio signal from a communication apparatus; 
 output of audible sound corresponding to the first communication audio signal and a content sound signal; 
 acquisition of a microphone detection signal corresponding to the first communication audio signal and the content sound signal by an adaptive filter, the microphone detection signal being detected as audible sound by a microphone; 
 output of a digital audio signal corresponding to the first communication audio signal and the content sound signal to the adaptive filter; 
 generation of an echo-eliminated signal based on the microphone detection signal and the digital audio signal; 
 transmission of the echo-eliminated signal to the communication apparatus. 
   
     
     
         2 . The information processing apparatus of  claim 1 , wherein
 the microphone detection signal corresponds to the first communication audio signal, the content sound signal, and user utterance, and   wherein the echo-eliminated signal corresponds to the user utterance.   
     
     
         3 . The information processing apparatus of  claim 1 , wherein
 the one or more circuits are configured to control:
 reception of a second communication audio signal corresponding to the echo-eliminated signal from the communication apparatus. 
   
     
     
         4 . The information processing apparatus of  claim 1 , wherein
 the content sound signal corresponds to sound of broadcast content.   
     
     
         5 . The information processing apparatus of  claim 1 , comprising:
 a display configured to display image data corresponding to the first communication audio signal or the content sound signal.   
     
     
         6 . The information processing apparatus of  claim 5 , wherein
 the one or more circuits are configured to control:
 display of image data corresponding to the first communication audio signal and the content sound signal on the display. 
   
     
     
         7 . The information processing apparatus of  claim 1 , comprising:
 a camera configured to acquire image data corresponding to the echo-eliminated signal, wherein   the one or more circuits are configured to control:
 transmission of the image data acquired by the camera to the communication apparatus. 
   
     
     
         8 . The information processing apparatus of  claim 1 , wherein
 the one or more circuits are configured to control:
 generation of the echo-eliminated signal by causing a time delay on a signal used in generation of the echo-eliminated signal. 
   
     
     
         9 . The information processing apparatus of  claim 8 , wherein
 the time delay comprises a component of a filter coefficient and is based on an amount of delay that occurs between the output generating the audible sound and detection of the microphone detection signal.   
     
     
         10 . The information processing apparatus of  claim 1 , wherein
 transmission of the echo-eliminated signal to the communication apparatus stops upon the one or more circuits ending generation of the echo-eliminated signal.   
     
     
         11 . The information processing apparatus of  claim 1 , wherein
 generation of the echo-eliminated signal is interrupted upon receipt of a suspend request.   
     
     
         12 . The information processing apparatus of  claim 1 , wherein
 the one or more circuits are configured to control:
 generation of the echo-eliminated signal based on volume of the audible sound. 
   
     
     
         13 . The information processing apparatus of  claim 1 , wherein
 the audible sound is output from a speaker.   
     
     
         14 . The information processing apparatus of  claim 1 , wherein
 the echo-eliminated signal is computed based on a filter coefficient learned by an adaptive-signal-processing algorithm.   
     
     
         15 . The information processing apparatus of  claim 1 , wherein
 the one or more circuits comprise the adaptive filter configured to generate an echo estimation signal based on the microphone detection signal and the digital audio signal.   
     
     
         16 . The information processing apparatus of  claim 15 , wherein
 the one or more circuits include an adder configured to compute the echo-eliminated signal based on the echo estimation signal and the microphone detection signal.   
     
     
         17 . The information processing apparatus of  claim 5 , wherein
 the one or more circuits are configured to control:   display of first image data received from the communication apparatus, second image data acquired by a camera connected to the information processing apparatus, and content image data on the display at a same time, the first image data corresponding to the first communication audio signal, the content image data corresponding to the content sound signal.   
     
     
         18 . The information processing apparatus of  claim 1 , wherein
 the communication apparatus is a telephonic communication sound system.   
     
     
         19 . An information processing method comprising:
 receiving a first communication audio signal from a communication apparatus;   outputting audible sound corresponding to the first communication audio signal and a content sound signal;   acquiring a microphone detection signal corresponding to the first communication audio signal and the content sound signal by an adaptive filter, the microphone detection signal being detected as audible sound by a microphone;   outputting a digital audio signal corresponding to the first communication audio signal and the content sound signal to the adaptive filter;   generating an echo-eliminated signal based on the microphone detection signal and the digital audio signal; and   transmitting the echo-eliminated signal to the communication apparatus.   
     
     
         20 . A non-transitory computer readable medium storing instructions that, when executed by one or more circuits, cause the one or more circuits to process executable instructions to perform a method, the method comprising:
 receiving a first communication audio signal from a communication apparatus;   outputting audible sound corresponding to the first communication audio signal and a content sound signal;   acquiring a microphone detection signal corresponding to the first communication audio signal and the content sound signal by an adaptive filter, the microphone detection signal being detected as audible sound by a microphone;   outputting a digital audio signal corresponding to the first communication audio signal and the content sound signal to the adaptive filter;   generating an echo-eliminated signal based on the microphone detection signal and the digital audio signal; and   transmitting the echo-eliminated signal to the communication apparatus.