A sound that's produced by a single wave at a constant frequency and with no overtones is a pure tone or a sinusoidial wave.
It is called a pure tone. It's a tone with a sinusoidal waveshape.
A sound that's produced by a single wave at a constant frequency and with no overtones is called pure sound. This means that regardless of other characteristic properties such as amplitude or phase, the wave consists of a single frequency.
The shape of this sound is a sine wave, and that is what physicists call it. Musicians tend to call it the fundamental.
An overtone is any frequency higher than the fundamental frequency of a sound.The fundamental and the overtones together are called partials.
It is called a sine wave or sinusoid. A musician might also call it a "pure tone", although few if any acoustic musical instruments produce such tones. There are few purely natural systems that would produce a perfect sine wave. A very well engineered tuning fork comes very close. Most natural objects that produce sound will consist of a fundamental tone and a series of harmonics (overtones) some of which may add color to the tone, and some of which may be inaudible. The fundamental tone and the harmonics are each examples of sinusoids, but may be imperfect given the inherent imperfections of the object that is vibrating.
An overtone is a natural resonance or vibration frequency of a system. Systems described by overtones are often sound systems, for example, blown pipes or plucked strings. If such a system is excited, a number of sound frequencies may be produced, including a fundamental tone of given frequency. An integer multiple of the fundamental frequency is called a harmonic. The second overtone is not the second harmonic. (See related link "Calculations of Harmonics and Overtones from Fundamental Frequency")
They're called "harmonics".
Sounds consist of fundemental tones and overtones. A single frequency is a fundemental tone.
A sound of a single frequency (fundamental tone) with no overtones is a pure sine wave. It sounds cold and colorless like an audio signal generator or test tone generator
Overtones.
They are known as Overtones. If they are beyond the range of human hearing, they are called ultrasound, or ultrasonic waves.
Are known as: Overtones