SIGNAL PROCESSING QUESTIONS & ANSWERS

SIGNAL PROCESSING QUESTIONS & ANSWERS A BAND STOP FILTER WITH A HIGH Q-FACTOR. USED TO SOLVE A SPECIFIC PROBLEM LIKE 60HZ HUM, WHICH ARE LIMITED TO A NARROW FREQUENCY BAND. - CORRECT ANSWER - Notch EQ A CIRCUIT THAT WORKS UPON A CERTAIN PORTION OF THE FREQUENCY SPECTRUM. - CORRECT ANSWER - Filters a device or circuit that allow control over the relative amplitude of various frequencies within the audible bandwidth. - CORRECT ANSWER - Equalizer A device that changes, augments, or otherwise modifies an audio signal in the analog or digital domain. - CORRECT ANSWER - signal processing A DEVICE WHOSE OUPUT LEVEL DECREASES (ABOVE A USER DEFINED AMP LEVEL), AS INPUT LEVEL INCREASES (ABOVE THE SAME USER DEFINED AMP LEVEL). DEVICE FOR AUTOMATICALLY CONTROLLING THE LEVEL OF AN AUDIO SIGNAL. - CORRECT ANSWER - Compressor A DEVICE WHOSE OUTPUT GAIN REMAINS CONSTANT ABOVE A USER DEFINED AMPLITUDE LEVEL REGARDLESS OF INPUT GAIN. SINCE COMPRESSION PUSHES THE TOP (LOUDEST PART) OF THE SIGNAL LEVEL DOWN, AS A RESULT YOU ACHIEVE GAIN REDUCTION - CORRECT ANSWER - Limiter a HPF AND A LPF COMBINED - CORRECT ANSWER - Band Pass Filter A SIGNAL-PROCESSING DEVICE USED TO INCREASE THE DYNAMIC RANGE OF THE SIGNAL PASSING THROUGH IT. - CORRECT ANSWER - Expander ADDITIONAL THRESHOLD FOR THE CLOSING OF THE GATE. A FEW DB LOWER. HELPS AVOID CHATTER OR FLAPPING - CORRECT ANSWER - HYSTERESIS ALLOWS FOR PATCHING AN EXTERNAL SIGNAL INTO THE (DETECTOR CIRCUIT) OF A COMPRESSOR TO TRIGGER THE COMPRESSOR'S ACTION - CORRECT ANSWER - Side Chaining ALLOWS FOR TRIGGERING A PROCESSOR BY AN EXTERNAL SIGNAL, AS OPPOSED TO THE SIGNAL ITSELF. - CORRECT ANSWER - Side Chaining and Key Inputs AN ACTIVE CIRCUIT THAT RE-ESTABLISHES THE PEAK LEVEL OF THE SIGNAL AFTER COMPRESSION - CORRECT ANSWER - Make Up Gain CONTROLS THE AMOUNT OF TIME (HOW QUICKLY OR SLOWLY) COMPRESSION TAKES TO BE APPLIED ONCE THE SIGNAL EXCEEDS THRESHOLD. - CORRECT ANSWER - Attack