"Sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid."
Study of the basic properties of sound waves, such as frequency (cycles per second) and period (time between cycles).
Oscillation: Oscillation is a periodical motion of a system around an equilibrium point, which creates a pattern of movement over time.
Simple harmonic motion: Simple harmonic motion is a type of oscillation where the system moves back and forth in a straight line or a circle, with a regular frequency.
Wave motion: Wave motion is the transfer of energy through a medium by means of oscillation, which produces a disturbance that moves through space.
Periodic motion: Periodic motion is a repetitive motion that occurs at regular intervals, and is characterized by a specific frequency and amplitude.
Amplitude: Amplitude is the maximum displacement of a wave from its resting position, which is a measure of the wave's intensity.
Wavelength: Wavelength is the distance between two consecutive points on a wave that are in phase with each other.
Frequency: Frequency is the number of complete cycles of a wave that occur in one second, which is measured in Hertz (Hz).
Period: Period is the time required for one complete cycle of a wave to occur, which is measured in seconds (s).
Sound waves: Sound waves are longitudinal waves that travel through a medium, such as air, and produce a sound sensation in the ear.
Resonance: Resonance is a phenomenon that occurs when the frequency of an external force matches with the natural frequency of a system, resulting in a large amplitude oscillation.
Doppler effect: Doppler effect is the change in frequency of a wave due to the relative motion between the source of the wave and the observer.
Fourier analysis: Fourier analysis is a mathematical technique used to decompose a complex waveform into its constituent sine and cosine waves, which allows us to understand the frequency content of a signal.
Harmonics: Harmonics are integer multiples of the fundamental frequency, and are produced when a wave oscillates with a complex waveform.
Standing waves: Standing waves are a type of wave pattern that occurs when two waves of the same frequency and amplitude travel in opposite directions and interfere with each other.
Sound intensity: Sound intensity is a measure of the amount of sound energy per unit area that passes through a medium, and is measured in decibels (dB).
Hertz (Hz): The basic unit of frequency. It measures the number of cycles per second.
Kilohertz (kHz): A unit of frequency equal to 1,000 Hz.
Megahertz (MHz): A unit of frequency equal to 1,000,000 Hz.
Gigahertz (GHz): A unit of frequency equal to 1,000,000,000 Hz.
Period: The time it takes for one complete cycle of a wave to occur.
Wavelength: The distance between two adjacent points on a wave that are in phase with each other.
Amplitude: The maximum displacement of a wave from its equilibrium position.
Phase: The position of a wave in its cycle at a given time.
Octave: A factor of two increase or decrease in frequency. An octave above a given frequency is twice the frequency, and an octave below is half the frequency.
Harmonic: A frequency that is an integer multiple of the fundamental frequency.
Resonant frequency: The frequency at which a system vibrates most strongly.
Beat frequency: The difference between two frequencies that are slightly off from each other, causing an oscillation in amplitude between the two waves.
Chromatic scale: A musical scale consisting of 12 evenly spaced notes per octave, each a semitone apart.
Microtonal scale: A musical scale that uses intervals smaller than a semitone.
White noise: A type of noise that contains all frequencies at equal amplitudes.
Pink noise: A type of noise that has equal energy per octave, resulting in more energy at lower frequencies compared to higher frequencies.
Brown noise: A type of noise that has a power spectral density proportional to 1/f^2, resulting in more energy at lower frequencies compared to higher frequencies.
"Sound is the reception of such waves and their perception by the brain."
"Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans."
"These represent sound waves with wavelengths of 17 meters (56 ft) to 1.7 centimeters (0.67 in)."
"Sound waves above 20 kHz are known as ultrasound and are not audible to humans."
"Sound waves below 20 Hz are known as infrasound."
"Yes, different animal species have varying hearing ranges."
"Sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid, or solid."
"In air at atmospheric pressure, these represent sound waves with wavelengths of 17 meters (56 ft) to 1.7 centimeters (0.67 in)."
"Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans."
"No, ultrasound waves are not audible to humans."
"Sound waves below 20 Hz are known as infrasound."
"Sound is the reception of such waves and their perception by the brain."
"Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans."
"Yes, different animal species have varying hearing ranges."
"Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans."
"Yes, sound is a vibration that propagates as an acoustic wave."
"Sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid, or solid."
"These represent sound waves with wavelengths of 17 meters (56 ft) to 1.7 centimeters (0.67 in)."
"Sound waves below 20 Hz are known as infrasound."