5. Dynamic Processing Flashcards
What does a parametric EQ do?
Gives continuous control of each of the three primary EQ parameters - frequency, gain and bandwidth.
What is a single band EQ?
Includes low cut, high cut, lowpass, high pass, shelving and parametric EQs.
What is a multiband EQ?
Combines several filters in one unit, enabling you to control a large part of the frequency spectrum.
What sort of frequencies are described as lo or hi?
Hi is typically above 10kHZ. Low is typically below 100Hz and Mid is everything in between.
What might you describe a muddy mix as?
Having a limited frequency range.
Describe compression.
Behaves like an automatic volume control, lowering the volume when it goes above a certain level (threshold).
How does compression work?
By reducing the highest parts of the signal (peaks), a compressor raises the overall level of the signal, increasing the perceived volume.
What does the threshold setting do in a compressor?
Sets the threshold level - so signals above this threshold value are reduced in level.
What does the ratio do in a compressor?
A ratio saying 6:1 means that a signal exceeding the threshold by 6db will be attenuated down to 1db above the threshold.
What does the output gain do in a compressor?
Since compression introduces attenuation, this can be compensated by raising the output volume.
What does attack do in a compressor?
Determines the amount of time it takes for the compressor to react when the signal exceeds the threshold.
What does the release do in a compressor?
Determines the amount of time it takes for the compressor to stop reducing the signal after the signal level falls below the threshold.
What does a limiter do?
Similar to compressor in that it reduces the signal when it exceeds a set threshold. However, instead of gradually lowering the signal levels - a limiter quickly reduces any signal louder than the threshold, to the threshold level. Main use is to prevent clipping.
What does a noise gate do?
Lowers the signal level whenever it falls below the threshold. Gets rid of background noise. Usually used to eliminate low level noise or hum in an audio signal.
