From the course: Digital Audio Foundations
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Threshold, ratio, and four types of dynamic processors
From the course: Digital Audio Foundations
Threshold, ratio, and four types of dynamic processors
- We can define each dynamic processor in terms of two parameters: threshold and ratio. The threshold is the volume level the processor is always watching to see if the signal's amplitude crosses it. The ratio is a mathematical ratio like two to one, one to two, three to one, ten to one, and so on. Let's see how a compressor interprets those two parameters, then compare the compressor to the other dynamic processors. A compressor kicks in whenever the signal goes above the threshold. And then the ratio determines how far the compressor turns it down in response. Let's watch a compressor in action with a ratio of two to one and a threshold of a medium level. The signal going into the compressor constantly fluctuates in level like signals do. As long as it stays quieter than the threshold the compressor leaves it alone. But, now, at one point, let's say the input signal goes two decibels over the threshold. At that moment, the compressor sees that the signal has exceeded the threshold…
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Contents
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Levels, pan, and automation6m 54s
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Monitoring levels while mixing3m 40s
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Partials, harmonics, and equalization (EQ)6m 33s
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Types of EQ components7m 48s
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Compression and other dynamic processing3m 14s
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Threshold, ratio, and four types of dynamic processors5m 18s
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Attack and release in dynamic processors5m 46s
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Reverb5m 55s
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Characteristics of analog and digital3m 24s
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