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readback  变成db



		

			

									
					    chendong
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Sep 15, 2019 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    您好：
    

           我想用readback 模块做电平检测。我用MCU 读出数值后有什么公式换算成db 数。谢谢。我会用到1761 和1452 这个两个计算公式是不是不一样。
    
									
			        
		
    

				
						
        

    
    Tags: 
                                            
                 Audio Signal Processors
                
                                                    
                 adau1452
                
                                                    
                 SigmaDSP Audio Processors
                
                                                    
                 adau1761