In acoustics, the harmonics of a sound all have a higher frequency than the fundamental frequency. The fundamental frequency is the lowest resonant frequency that a sound generator produces.Know More
Harmonics are whole-number factors of the fundamental frequency. For example, the second harmonic has a frequency that is double that of the fundamental, while the third harmonic is triple the frequency.
Any object that vibrates at a regular frequency, such as a guitar string or the air in a brass instrument, generates a harmonic frequency structure.
Sound quality, or timbre, depends on the frequency and distribution of the harmonics, as well as the different media that give rise to these vibrations.Learn more about Optics & Waves
The frequency of a sound is the rate at which wave crests reach a given point. Sound waves propagate outward from their source, as a series of compressions and rarefactions of the surrounding air. The peak of each cycle can be plotted as the crest of a wave, as can the low point or trough. The frequency with which these crests and troughs arrive gives sound its pitch.Full Answer >
Pitch is determined by the frequency of a wave, and frequency is the combination of wavelength and speed at which the wave is traveling. Sound has a constant speed of 343 meters per second, so wavelength dictates pitch. The longer a sound's wavelength, the lower the pitch of that sound.Full Answer >
The frequency of a sound wave determines what people hear as pitch. A higher frequency has a higher pitch, and a lower frequency is heard as a lower pitch. The frequencies that humans can hear range from 20 to 20,000 Hertz.Full Answer >
Several characteristics define sound, including frequency, pitch, loudness, wavelength and period. Sound travels in waves and is caused by vibrations. Sound travels fastest through solids, slowest in gases and at an intermediate speed through liquids.Full Answer >