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Products Mentioned

AD1940 Production
The AD1940 / AD1941 are a complete 28-bit, single-chip, multi-channel audio SigmaDSPâ„¢ for equalization, multiband dynamic processing, delay compensation...
Datasheet
AD1940 on Analog.com

Associated Drivers

ADAU1702 Production
The ADAU1702 is a complete single-chip audio system with a 28-/56-bit audio DSP, ADCs, DACs, and microcontroller-like control interfaces. Signal processing...
Datasheet
ADAU1702 on Analog.com

Associated Drivers

ADAU1401 Obsolete
The ADAU1401 is a complete single-chip audio system with a 28-/56-bit audio DSP, ADCs, DACs, and microcontroller-like control interfaces. Signal processing...
Datasheet
ADAU1401 on Analog.com

Associated Drivers

AD1941 Obsolete
The AD1940/AD1941 are a complete 28-bit, single-chip, multi-channel audio SigmaDSPâ„¢ for equalization, multiband dynamic processing, delay compensation...
Datasheet
AD1941 on Analog.com

Associated Drivers

ADAU1446 Production
The ADAU1442 / ADAU1445 / ADAU1446 are enhanced audio processors that allow full flexibility in routing all input and output signals. The SigmaDSP® core...
Datasheet
ADAU1446 on Analog.com

Associated Drivers

ADAU1442 Production
The ADAU1442 / ADAU1445 / ADAU1446 are enhanced audio processors that allow full flexibility in routing all input and output signals. The SigmaDSP® core...
Datasheet
ADAU1442 on Analog.com

Associated Drivers

ADAU1445 Production
The ADAU1442 / ADAU1445 / ADAU1446 are enhanced audio processors that allow full flexibility in routing all input and output signals. The SigmaDSP® core...
Datasheet
ADAU1445 on Analog.com

Associated Drivers

ADAU1761 Production
The ADAU1761 is a low power, stereo audio codec with integrated digital audio processing that supports stereo 48 kHz record and playback at 14 mW from...
Datasheet
ADAU1761 on Analog.com

Associated Drivers

ADAU1701 Production
The ADAU1701 is a complete single-chip audio system with a 28-/56-bit audio DSP, ADCs, DACs, and microcontroller-like control interfaces. Signal processing...
Datasheet
ADAU1701 on Analog.com

Associated Drivers

Thread Details

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How do I change the sample rate of my SigmaStudio system?

		
	
				

			

									
					    ADIApproved
					
							

            
            			
				
									
											
			
			
				
  •  Analog Employees  

			
			
			    	
			                    
                
				                on Oct 12, 2009 
				
			
			
		

		
		                    	    

        	    
Thread Summary

                The user asked how to change the default 48 kHz sample rate in SigmaStudio projects. The solution involves setting the sample rate in the toolbar, confirming the change, and linking-compile-downloading the project. For hardware, the core frame rate register must be set according to the specific IC (e.g., AD194x, ADAU144x, ADAU170x/ADAU1401, ADAU176x). For the ADSP-SC589_EZ evaluation board, the sample rate in SigmaStudio is for programming purposes, and the actual sample rate must be set via the DSP registers and clock configurations.
                        	    

                
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The default sample rate for SigmaStudio projects is 48 kHz. I want to run my system at a different sample rate. How do I do so?

			

			
									
		                             
                        

    

                                            
                 ad1940
                
                                                    
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                on Jan 22, 2020 3:16 AM
            
            
												
						in reply to EZAdministrator
					
										
			            		
    
		
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    Sorry, but I have the same question but now for my ADSP-SC589_EZ evaluation board, which is not included here.
    

    Are there any updated instructions on this issue?
    

    

    BN
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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    •  Analog Employees  
    •  Super User  
    
            
						
                            
            
            				
            
                on Jan 24, 2020 5:53 PM
            
            
												
						in reply to bnilsson
					
										
			            		
    
		
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    Hello bnilsson,
    

    I would post this question on the SHARC section of this forum. 
    

    SigmaStudio will work the same way for the SHARC DSPs, the sample rate at the top of the window is only for SigmaStudio to properly program code that needs to know what the sample rate is. It is up to you to be certain that the registers in the DSP are properly set and the clocks going to the part are correct to obtain the desired sample rate inside the DSP. SigmaStudio does not know what rate the DSP is actually running at. 
    

    Dave T
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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