Blog tagged as Acoustics

Lexicon: Formant 2 (F2)

Formant 2 (F2) is the second formant frequency. Like Formant 1 it is created by the shape of the tongue; however, its frequency directly related to the height of the Dorsum of the Tongue. That is to say the higher the Dorsum of the Tongue the higher the frequency of Formant 2. 

Lexicon: Formant 1 (F1)

Formant 1 (F1) is a frequency of increased acoustic resonance caused by the position of the Blade of the Tongue. Formant 1, in conjunction with Formant 2, is responsible for creating vowels. Despite this, formants are excited by acoustic sources and are not the source themselves. 

Lexicon: Fundamental Frequency (Fo)

The Fundamental Frequency or Fo, is more commonly referred to as pitch. The difference between the fundamental frequency and a pitch is that a pitch created by a singer or most instruments contains multiple frequencies including the fundamental frequency and overtones. The fundamental frequency is t...

Lexicon: Echo

An echo refers to the reflection of sound waves off surfaces back to the listener's ears. It occurs when sound waves encounter a hard, reflective surface and bounce back. The time delay between the original sound and its echo depends on the distance to the reflecting surface. Echos are commonly hear...

Lexicon: Decibel

Decibel (dB) measures sound intensity or the sound power per unit area on a logarithmic scale. Because of this logarithmic relationship, the overall sound pressure doubles every six decibels. Decibels were named after Alexander Graham Bell. 

Lexicon: Cents

Cents, in the context of music and sound, are a unit of measurement used to quantify the difference in pitch between two frequencies. One cent is equal to one hundredth of a semitone. Cents provide a precise way to describe and compare the pitch variations between different musical tones and are an ...

Lexicon: Catacoustics

Catacoustics is the branch of acoustics dealing with echoes and reflected sounds, also sometimes referred to as cataphonics. Typically, however, it shows up simply under the term acoustics.

Lexicon: Bernoulli Effect

The Bernoulli Effect, named after the Swiss mathematician Daniel Bernoulli, refers to a principle within fluid dynamics that states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or potential energy of the fluid. In other words, within a steady, incom...

Lexicon: Attenuation

Attenuation refers to the gradual reduction in intensity or strength of a signal as it travels through a medium or encounters an obstacle. In the context of sound, attenuation results in a decrease in sound energy as it propagates, leading to a quieter or less audible sound. This phenomenon is ...

Lexicon: Amplitude

Amplitude refers to the maximum extent of a sound wave's vibration, typically measured as the height of the wave from its equilibrium position to its highest point (peak) or its lowest point (trough). Amplitude directly relates to the perceived loudness of a sound; greater amplitude corresponds...

Lexicon: Acoustics

Acoustics is the branch of physics concerned with the study of sound, its generation, transmission, and effects. It encompasses various aspects of sound, including its production, propagation, and interaction with the environment. Acoustics examines how sound waves travel through different medi...