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Beat (acoustics) In acoustics, a beat is an interference pattern between two sounds of slightly different frequencies, perceived as a periodic variation in volume whose rate is the difference of the two frequencies. With tuning instruments that can produce sustained tones, beats can be readily recognized.
The Lombard effect or Lombard reflex is the involuntary tendency of speakers to increase their vocal effort when speaking in loud noise to enhance the audibility of their voice. [5] This change includes not only loudness but also other acoustic features such as pitch, rate, and duration of syllables.
A hoarse voice, also known as dysphonia or hoarseness, [1] is when the voice involuntarily sounds breathy, raspy, or strained, or is softer in volume or lower in pitch. [2] [3] [clarification needed] A hoarse voice can be associated with a feeling of unease or scratchiness in the throat. [2] Hoarseness is often a symptom of problems in the ...
A similar effect is a "voice crack", during which a person's voice suddenly and unintentionally enters a higher register (usually falsetto) for a brief period of time. This may be caused by singing or talking at a pitch outside the person's natural vocal range , stress, fatigue, emotional tension, or the physical changes associated with puberty.
Dysprosody is "characterized by alterations in intensity, in the timing of utterance segments, and in rhythm, cadency, and intonation of words." [4] These differences cause a person to lose the characteristics of their particular individual speech. While the individual's personality, sensory comprehension, motor skills, and intelligence all ...
Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details ...
Vocal range is the range of pitches that a human voice can phonate. A common application is within the context of singing, where it is used as a defining characteristic for classifying singing voices into voice types. [1] It is also a topic of study within linguistics, phonetics, and speech-language pathology, particularly in relation to the ...
This causes an increase in heart rate. During exhalation, the diaphragm relaxes, moving upward, and decreases the size of the chest cavity, causing an increase in intrathoracic pressure. This increase in pressure inhibits venous return to the heart resulting in both reduced atrial expansion and increased activation of baroreceptors. This ...