 guitavi
                        
                                        guitavi                
                    
                    
                    Published on 07/12/07 at 13:50
                    
                    
                                            
            I have a Korg D4 acqurir but despite the manual, I can not save myself (guitar and voice). There was perpetually whistling; could someone help me? Thank you in advance 
                    
                    
                    
                    
                    
                 
                             
                