- 1 Why are there typically more stringed instruments in an orchestra than wind instruments?
- 2 What did Fourier discover about waves that are periodic?
- 3 Why do the same notes plucked on a banjo and on a guitar have distinctly different sounds?
- 4 What feature of sound is measured in decibels quizlet?
- 5 Where do the loudest instruments sit in the orchestra?
- 6 What is the smallest instrument that has the highest pitch in the family?
- 7 What is CTFT?
- 8 What is the meaning of Fourier?
- 9 Who discovered the greenhouse effect in 1824?
- 10 What changes when pitch gets higher?
- 11 What are the three principal classes of musical instruments?
- 12 What is the frequency one octave above 440 Hz?
- 13 What feature of sound is measured in decibels?
- 14 Is sound intensity subjective or is loudness subjective?
- 15 Which is not a color quizlet?
Why are there typically more stringed instruments in an orchestra than wind instruments?
Why do orchestras generally have a greater number of stringed instruments than wind instruments? The vibration of the string is transferred to the air/ surroundings with low efficiency. To compensate for this, a greater number of string instruments are played compared to wind instruments.
What did Fourier discover about waves that are periodic?
The French mathematician Joseph Fourier discovered that any periodic wave (any wave that consists of a consistent, repeating pattern) can be broken down into simpler waves. In other words, a complicated periodic wave can be written as the sum of a number of simpler waves.
Why do the same notes plucked on a banjo and on a guitar have distinctly different sounds?
The reason the same musical note sounds different when played on various instruments is because the harmonic overtones and envelope of each instrument is unique. When a frequency is played, other frequencies, called harmonics, are created. Each instrument has a unique harmonic character.
What feature of sound is measured in decibels quizlet?
Sound intensity is the ratio of power to surface area. Sound intensity level is a logarithmic measure of the sound intensity. Sound intensity is measured in W/m2 (watts per square meter) and sound intensity level is measured in decibels (dB).
Where do the loudest instruments sit in the orchestra?
Woodwinds: flutes, oboes, clarinets, bassoons and related instruments. These players sit a few rows back from the conductor, in the center of the orchestra. Brass: trumpets, horns, trombones, tubas and similar instruments. These instruments are the loudest, so you’ll see them at the back of the orchestra.
What is the smallest instrument that has the highest pitch in the family?
The violin is the smallest and highest pitched member of the string family. The sound of the violin is high, bright, and sweet. There are more violins in the orchestra than any other instrument.
What is CTFT?
The Continuous-Time Fourier Transform (CTFT) is the version of the fourier transform that is most common, and is the only fourier transform so far discussed in EE wikibooks such as Signals and Systems, or Communication Systems.
What is the meaning of Fourier?
: an infinite series in which the terms are constants multiplied by sine or cosine functions of integer multiples of the variable and which is used in the analysis of periodic functions.
Who discovered the greenhouse effect in 1824?
Our understanding of how certain atmospheric gases trap heat dates back almost 200 years to 1824 when Joseph Fourier described what we know as the greenhouse effect.
What changes when pitch gets higher?
Both frequency and wavelength will change. As the frequency (pitch) increases, the wavelength becomes shorter according to the universal wave equation ( v=fλ ). The speed of the wave will not change, as it is dependent only on the properties of the medium through which the wave is traveling (ex.
What are the three principal classes of musical instruments?
Writers in the Greco-Roman world distinguished three main types of instruments: wind, stringed, and percussion.
What is the frequency one octave above 440 Hz?
An octave higher than 440 Hz is 880 Hz. An octave lower than 440 Hz is 220 Hz. A perfect fifth higher than 440 Hz is 660 Hz.
What feature of sound is measured in decibels?
Loudness of sound is measured in decibels (dB). This is actually a measure of intensity, which relates to how much energy the pressure wave has. Decibels are a relative measurement. They relate the intensity of a pressure wave to a normal or standard pressure.
Is sound intensity subjective or is loudness subjective?
Sound loudness is a subjective term describing the strength of the ear’s perception of a sound. It is intimately related to sound intensity but can by no means be considered identical to intensity. The sound intensity must be factored by the ear’s sensitivity to the particular frequencies contained in the sound.
Which is not a color quizlet?
Black is not a color; it is the absence of all light. T/F: Black objects that you can see absorb all light that falls on them.