Watercraft

Abstract

A watercraft according to one aspect includes: a watercraft body; a speaker supported by the watercraft body and exposed to an external environment; and processing circuitry supported by the watercraft body. The processing circuitry is configured to: acquire status information indicating a status of the watercraft; acquire sound information; based on the sound information, generate a speaker driving current that allows the speaker to emit a sound; and modify the speaker driving current based on the status information.

What is claimed is: 
     
         1 . A watercraft comprising:
 a watercraft body;   a speaker supported by the watercraft body and exposed to an external environment; and   processing circuitry supported by the watercraft body, wherein   the processing circuitry is configured to:
 acquire status information indicating a status of the watercraft; 
 acquire sound information; 
 based on the sound information, generate a speaker driving current that allows the speaker to emit a sound; and 
 modify the speaker driving current based on the status information. 
   
     
     
         2 . The watercraft according to  claim 1 , wherein
 the status information includes at least information related to a movement state of the watercraft body or information related to an alert state of operation of the watercraft.   
     
     
         3 . The watercraft according to  claim 1 , wherein
 the status information includes watercraft speed information related to a moving speed of the watercraft body, and   the processing circuitry is further configured to:
 based on the watercraft speed information, determine whether the moving speed is higher than a predetermined speed threshold; and 
 upon determining that the moving speed is higher than the speed threshold, allow a volume of the sound emitted from the speaker to be higher than in a case where the moving speed is determined to be not higher than the speed threshold. 
   
     
     
         4 . The watercraft according to  claim 1 , wherein
 the status information includes relative orientation information related to an orientation of an operator of the watercraft relative to the watercraft body, and   the processing circuitry is further configured to, based on the relative orientation information, increase a volume of the sound emitted from the speaker with increasing amount of displacement of the operator relative to a straight line passing through the speaker and extending in a direction in which the speaker emits the sound.   
     
     
         5 . The watercraft according to  claim 1 , wherein
 the processing circuitry is further configured to, based on the status information, cause the speaker to output alert information related to an alert state of operation of the watercraft as the sound information.   
     
     
         6 . The watercraft according to  claim 5 , wherein
 the alert information is sound information describing the alert state or sound information describing how to address the alert state.   
     
     
         7 . The watercraft according to  claim 1 , wherein
 the status information includes location information indicating a self-location that is a geographical location of the watercraft body, and   the processing circuitry is further configured to modify an output of the speaker driving current based on the location information.   
     
     
         8 . The watercraft according to  claim 1 , wherein
 the processing circuitry is further configured to:
 determine whether the watercraft body is in a predetermined restricted area; and 
 upon determining that the watercraft body is in the restricted area, allow a volume of the sound emitted from the speaker to be lower than in a case where the watercraft body is determined to be outside the restricted area. 
   
     
     
         9 . The watercraft according to  claim 1 , wherein
 the processing circuitry is further configured to, in response to a user action, enable or disable control in which the processing circuitry modifies the speaker driving current based on the status information.   
     
     
         10 . The watercraft according to  claim 1 , wherein
 the processing circuitry is further configured to:
 based on the status information, set a frequency band for which the processing circuitry performs sound quality adjustment; and 
 accentuate or attenuate a sound component included in the sound information and falling within the set frequency band. 
   
     
     
         11 . The watercraft according to  claim 1 , further comprising a meter display supported by the watercraft body, wherein
 the processing circuitry is further configured to display the status information on the meter display.   
     
     
         12 . The watercraft according to  claim 1 , wherein
 the status information includes at least one piece of information selected from the group consisting of: watercraft speed information related to a speed of the watercraft body; rotational speed information related to a rotational speed of a drive source of the watercraft body; attitude information related to an attitude of the watercraft body; information related to a steering angle of the watercraft body; turning information related to a turning state of the watercraft body; faulty information related to a faulty of the drive source of the watercraft body; fuel information related to a remaining amount of fuel of the drive source of the watercraft body; location information related to a geographical location of the watercraft body; information related to a status of a person on board the watercraft; and falling-overboard information related to occurrence of falling overboard in a body of water including the watercraft body.   
     
     
         13 . The watercraft according to  claim 1 , wherein
 the modifying the speaker driving current based on the status information by the processing circuitry includes:   changing a sound volume included in the sound information based on the status information by the processing circuitry;   accentuating or attenuating a sound component included in the sound information and falling within a given frequency band based on the status information by the processing circuity; or   stopping outputting of the sound information based on the status information by the processing circuitry.