"Audio signal processing is a subfield of signal processing that is concerned with the electronic manipulation of audio signals."
The manipulation of sound signals through various techniques, such as equalization, compression, distortion, and reverberation.
Analog signal processing: The study of how electrical signals are processed in analog circuits, including filters, amplifiers, and oscillators.
Digital signal processing: The study of how digital signals are processed using algorithms and software, including Fourier analysis, signal filtering, and convolution.
Sampling theory: The study of how analog signals can be converted into digital form and how this affects signal processing.
Acoustics: The study of sound waves and their behavior in physical environments, including sound absorption, reflection, and diffusion.
Psychoacoustics: The study of how humans perceive sound, including the relationship between the physical properties of sound waves and our perception of pitch, loudness, and timbre.
Sound synthesis: The creation of new sounds using signal processing techniques, including subtractive synthesis, additive synthesis, and frequency modulation.
Sound effects processing: The manipulation of existing sounds to create new or altered sounds, including time stretching, pitch shifting, and filter effects.
Surround sound: The use of multiple speakers and signal processing techniques to create a more immersive listening experience.
MIDI: A protocol used to transmit digital information about musical notes and performance data, which can be used for controlling synthesizers and other electronic music equipment.
Audio recording and editing: The process of capturing and manipulating sound using digital recording technology, including editing, mixing, and mastering.
Equalization (EQ): It is used to adjust the balance of frequency content in a signal.
Compression: Compression helps to reduce the dynamic range of an audio signal by reducing the volume of loud sounds and increasing the volume of soft sounds.
Reverb: Reverb is used to give the impression of sound in different spaces, from small rooms to large halls.
Delay: Delay produces an echo effect on the audio signal by delaying sound and repeating it at a set interval.
Pitch shifting: Pitch shifting is used to change the pitch of the audio signal without changing the tempo.
Distortion: Distortion creates a distorted or gritty sound effect by clipping the audio signal.
Filtering: It is used to remove or reduce unwanted frequencies or noise from an audio signal.
Modulation effects: Modulation effects include chorus, flanger, and phaser, which add movement and depth to the audio signal.
Sampling: Sampling captures and reproduces audio as digital data.
Spatial processing: Spatial processing is used to create a sense of left-right separation and depth in the audio field.
Reverse processing: Reverse processing is used to play audio in reverse, creating a unique and eerie effect.
Harmonic enhancement: Harmonic enhancement is used to add richness and body to audio signals by boosting specific frequency harmonics.
"Audio signals are electronic representations of sound waves—longitudinal waves which travel through air, consisting of compressions and rarefactions."
"The energy contained in audio signals or sound level is typically measured in decibels."
"As audio signals may be represented in either digital or analog format..."
"Analog processors operate directly on the electrical signal, while digital processors operate mathematically on its digital representation."
"Audio signals are longitudinal waves which travel through air."
"Processing may occur in either domain."
"The energy contained in audio signals or sound level is typically measured in decibels."
"Audio signals are electronic representations of sound waves."
"Audio signal processing is concerned with the electronic manipulation of audio signals."
"The energy contained in audio signals or sound level is typically measured in decibels."
"Sound waves—longitudinal waves which travel through air, consisting of compressions and rarefactions."
"Analog processors operate directly on the electrical signal, while digital processors operate mathematically on its digital representation."
"Audio signals may be represented in either digital or analog format."
"Analog processors operate directly on the electrical signal."
"Digital processors operate mathematically on its digital representation."
"The electronic manipulation of audio signals."
"To manipulate audio signals electronically."
"Audio signal processing is a subfield of signal processing..."
"Audio signals are electronic representations of sound waves."