The tone of a flute, especially in the higher register, is close to a sine wave.
The sound wave from the flute is very smooth and looks like a sine wave from a mathematics textbook. A flute has a strong fundamental frequency of 262 Hz and practically no other harmonics or overtones. A musician might describe a flute as having a very pure tone.
A sine wave is a simple periodic sound. Musical instruments or the voice produce complex periodic sounds. They have a spectrum consisting of a series of harmonics. Each harmonic is a sine wave that has a frequency that is an integer multiple of the fundamental frequency.
Violins are kinda like saws, flutes are sines and here's a kalimba sample looking like a triangle wave.
Theremin. The sounds of theremin are so creepy that it makes people quiver. Originated in Russia, Theremin is an early electronic instrument the wounds of which you can consider using this Halloween to make people quiver. Playing this instrument is as eerie as the sounds it creates.
HISTORY: A percussion instrument that creates the stylized sound of a police siren. PHYSICAL DESCRIPTION: The Acme siren is a hand-held mouth-blown instrument that can be made out of metal or plastic. It is comprised of a cylinder shaped body with a fan-like blade mounted inside.
The Acme siren is a musical instrument used in concert bands for comic effect. Often used in cartoons, it produces the stylized sound of a police siren. It is one of the few aerophones in the percussion section of an orchestra.
Hang, pantam, UFO drum—these names all belong to the handpan, a relatively new family of percussive instruments that share a unique, hypnotic sound. Coming in numerous shapes, sizes, and tunings, these domed metallic drums produce smooth ambient tones when played with both hands.
The harmonic spectrum of a pulse wave is determined by the duty cycle. Acoustically, the rectangular wave has been described variously as having a narrow/thin, nasal/buzzy/biting, clear, resonant, rich, round and bright sound. Pulse waves are used in many Steve Winwood songs, such as "While You See a Chance".
Sound wave is called longitudinal wave because it is produced by compressions and rarefactions in the air.
This combination of many sines waves that are all integer multiples of the fundamental is what gives a piano its distinctive sound. If just the fundamental sine wave vibrated when you pressed a key, it would sound like a cheap alarm clock.
All string and wind instruments produce pure sine waves. The thing is, usually they produce more than one of them at a time, at multiples of the root.
Quick Physics:
Sound is a wave that caused by vibrations in the air. A pure musical sound, such as a whistle, will produce a sine wave like the one shown above.
DEFINITION: A sine wave sounds like it looks: smooth and clean. It is sound at its most basic. The sound of a sine wave is only made up of one thing, something known as the fundamental. No partials to be seen!
People will hear the frequency of a sine wave as pitch, i.e., a high-frequency (often repeating) wave will sound like a high note, while a lower-frequency (not as often repeating) wave will sound like a lower note.
As I mentioned above, the frequency range of a flute typically lies between 300Hz and 5500kHz or so, so any increases or attenuations in this area, 0-250Hz, will make a tiny difference.
A sonic pulse. The Sonic pulse is a type of crowd-control device utilized by British Special Ops. Through soundwaves, it can incapacitate both humans and omnics. Depending on its power and/or range, its effects can be lethal.
In addition to hearing sound waves, you can also sometimes feel them. If you stand in front of a loudspeaker at a rock concert, you will definitely be able to feel the pulsing sensation of the sound waves as they hit your body.
The most common periodic waveforms are the sine, triangle, square, and sawtooth. These waveforms are said to be periodic because the wave they represent can be repeated to produce a constant tone. The faster the wave repeats, the higher the pitch of the sound.
The theremin sometimes seems like an instrument from Earth's future or another world. Its music seems conjured from nothing, notes and tones teased and manipulated by hypnotic movements of hand and fingers through air. Meet the only musical instrument controlled entirely without physical contact.
tsuzumi, any of a family of Japanese two-headed drums with hourglass-shaped (waisted) bodies. The two most commonly used tsuzumi are the ko-tsuzumi and the ō-tsuzumi, found in the music of Noh and Kabuki theatres.
It just might be world's strangest, spookiest musical instrument. You can see it . . . you can hear it . . . but you can't touch a Theremin. "It's like you're fingerpainting in space," says Rob Schwimmer. "Playing Theremin is like having sex with ghosts."
A siren is a warning device which makes a long, loud noise. Most fire engines, ambulances, and police cars have sirens. [...]
A Rumbler siren is a type of emergency vehicle siren used primarily in the United States. Developed in 2007 by Federal Signal Corporation, and sounding at a low-frequency level, it is designed to be heard by motorists who may otherwise be unable to hear high-frequency sirens due to ambient noise, such as urban traffic.
Siren Tones
There are two different tones used by Outdoor Warning Sirens: Attack: The signal for enemy attack is a rising and falling tone heard for 3 minutes. Civil Emergency: The signal for a civil emergency (such as a tornado) is a steady wail heard for at least 3 minutes.