Airborne Tone Link

01

02

03

:

04

−100dB−20dB


        

      

      
      

      

      

    

    

      
05 

      

      
      

      

        

          

          
            
1,500–4,414Hz16,000–18,914Hz

            

            

            

            

            

          
        

      

      

      

    

    

      
06 

      

        
        

        

          

            
A = 0x41 = 0100 0001

            
4 → 1,876Hz

            
1 → 3,098Hz

            

          

        

        

        
      

      

        
        

        

          

            

            

            

          

        

        W3C Web Audio API
        Day119 Ultrasonic Reach Meter
      

      

        
        

        

          

            

            

            

          

        

        
        Day041 Mic Gain Logger