What is audio input?
Audio input in music refers to the process of transferring sound from a source, such as a musical instrument or a voice, into a device that can process, record, or amplify the sound. This is a fundamental aspect of music production and recording, and understanding it can greatly enhance the quality of your musical output.
Audio input devices
Audio input devices are used to capture the sound from the source and convert it into an electrical signal that can be processed. The most common input devices in music are microphones, lines, and digital inputs.
1. Microphone input
Microphone input is the most common type of audio input in music.
Microphones work by capturing the vibrations of sound waves in the air and converting them into electrical signals. There are many different types of microphones, each suited to different applications.
For example, dynamic microphones are durable and can handle high sound-pressure levels, making them ideal for live performances. On the other hand, condenser microphones are more sensitive and accurate, making them suitable for studio recordings.
2. Line input
Line input involves connecting a device directly to the audio interface or mixer, bypassing the need for a microphone. This is often used with electronic instruments like keyboards or drum machines, or with devices like CD players or turntables.
The advantage of line input is that it provides a clean, direct signal, without the coloration or potential feedback issues that can occur with microphones. However, it also lacks the spatial characteristics and natural ambience that can be captured with a microphone.
3. Digital input
Digital input involves sending a digital audio signal directly into a device, bypassing the need for analog-to-digital conversion. This can be done through various digital audio interfaces, such as USB, FireWire, or Thunderbolt.
Digital input provides the cleanest and most accurate signal, as it avoids the potential noise and distortion that can occur with analog signals. However, it also requires compatible devices and software, and it may not be suitable for all applications.
