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However, resonance can also be detrimental, leading to excessive vibrations or even structural failure in some cases. [3] All systems, including molecular systems and particles, tend to vibrate at a natural frequency depending upon their structure; this frequency is known as a resonant frequency or resonance frequency.
This is a classic demonstration of resonance. A glass has a natural resonance, a frequency at which the glass will vibrate easily. Therefore the glass needs to be moved by the sound wave at that frequency. If the force from the sound wave making the glass vibrate is big enough, the size of the vibration will become so large that the glass ...
Mouth resonance is used for a conversational vocal color in singing and, in combination with nasal resonance, it creates forward placement or mask resonance. Chest resonance adds richer, darker, and deeper tone coloring for a sense of power, warmth, and sensuality. It creates a feeling of depth and drama in the voice.
To cause resonance, the phase of a sinusoidal wave after a round trip must be equal to the initial phase so the waves self-reinforce. The condition for resonance in a resonator is that the round trip distance, 2 d {\displaystyle 2d\,} , is equal to an integer number of wavelengths λ {\displaystyle \lambda \,} of the wave:
Room modes are the collection of resonances that exist in a room when the room is excited by an acoustic source such as a loudspeaker. Most rooms have their fundamental resonances in the 20 Hz to 200 Hz region, each frequency being related to one or more of the room's dimensions or a divisor thereof.
This set of sounds contrasts with the obstruents (stops, affricates and fricatives). [1] For some authors, only the term resonant is used with this broader meaning, while sonorant is restricted to the consonantal subset—that is, nasals and liquids only, not vocoids (vowels and semivowels). [2]
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Helmholtz resonance sometimes occurs when a slightly open single car window makes a very loud sound, also called side window buffeting or wind throb. [7] Because cars have a large volume, the frequency of the wind throb is quite low. [8] Helmholtz resonance finds application in internal combustion engines (see Airbox), subwoofers and acoustics.