Dynamic processing doesn't happen instantaneously. To smooth out the effects, two parameters called attack and release slow down its effects. Attack sets how quickly sounds louder than the threshold are affected, and release sets how quickly sounds softer than the threshold are affected. Matt shows how different a compressor can sound with a short attack vs. a long attack, and also defines the knee parameter and shows how a compressor sidechain works.
- The important aspect…of dynamic processing we haven't yet talked about is time.…Dynamic processors don't operate instantly.…If they did, they would distort the waveform's shape…instead of responding intelligently to volume changes.…In order to sound natural,…dynamic processors have parameters…to adjust their reaction times.…These are the attack and release parameters.…We'll define attack and release in terms of a compressor,…then show how they work on the other dynamic processors.…
On a compressor, the attack time…sets how quickly the sound is turned down…once it exceeds the threshold.…And the release time sets how quickly the compressor…lets go and brings the volume back to normal…when the input signal falls below the threshold.…Attack times are often very quick.…Because the beginning of a sound…is usually sudden.…So, attack times are generally measured in milliseconds,…or even microseconds.…Release times tend to be longer.…Because sounds often fade away more slowly.…
So, release times are usually measured in milliseconds…
The course starts with explanations of what sound really is and how we hear it, including discussions on frequency, amplitude, phase, and psychoacoustics. Matt explores analog audio signal path, explaining connections, gain staging, and metering. Next, he brings the audio signal into the digital domain, discussing analog to digital conversion, digital gain staging, file formats and compression, and dither.
Then the course digs into digital audio workstations (DAWs), explaining the concepts and misconceptions involved in digital recording systems. Matt describes how memory, CPU speed, and storage affect your DAW's performance, as well as how to manage computer resources and understand the plethora of file formats associated with digital recording. He follows with an overview of MIDI: how to generate, store, process, and communicate MIDI data. He wraps up with the audio processors that are often used for mixing in a DAW—including EQ, compressors, reverb, delay, and many others.
- What is sound?
- The three domains of sound: acoustic, analog, and digital
- The analog vs. digital signal paths
- Converting analog audio to digital
- Digital formats and data compression
- Understanding the five types of DAWs
- Recording performances with MIDI
- Mixing and processing audio with EQ, compression, and other effects
Skill Level Beginner
Music Production Secrets: Larry Crane on Recordingwith Larry Crane2h 21m Intermediate
Drum Setup and Mic'ing in the Studiowith Ryan Hewitt1h 14m Appropriate for all
1. Concepts of Sound
2. The Signal Path: Acoustic and Analog
3. The Signal Path: Digital
4. Digital Audio Workstations
6. Mixing and Processing Audio
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