Transducers like microphones and piezoelectric pickups convert sound from the acoustic domain to the analog domain. Mics pick up sound differently depending on their position and directional pattern, and have different transient response and frequency response.
- The device that turns a sound wave…in the acoustic domain into an electrical current…in the analog domain, or vice versa,…is called a transducer.…The name is easy to remember…if you think of the words transform, and conduct.…A transducer does both.…It transforms the energy, and acts as a conductor…from one domain to the next.…One common transducer is a Dynamic microphone,…which has a tiny diaphragm…that sound waves can push back and forth.…The diaphragm is connected to a small coil of wire…that moves around a magnet.…
The magnetic field creates small amounts…of electricity in the same pattern as the sound wave…that move the diaphragm.…Besides Dynamic, and other types of microphones,…there are other transducers than can bring sound…from the acoustic to the analog domain,…like electric guitar pickups and piezoelectric elements…that are commonly found on acoustic instruments…like guitars and violins.…While the mechanics are slightly different…between these different types of transducers,…the effect is the same.…They change acoustic energy into electrical analog currents.…
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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