How harmonics happens when you mix two signals?

1. What are harmonics in mixing?
2. What causes harmonics in a signal?
3. What causes harmonics in FFT?
4. How do you find the harmonics of a signal?

What are harmonics in mixing?

Harmonic mixing or key mixing (also referred to as mixing in key) is a DJ's continuous mix between two pre-recorded tracks that are most often either in the same key, or their keys are relative or in a subdominant or dominant relationship with one another.

What causes harmonics in a signal?

Harmonics are the result of nonlinear loads that convert AC line voltage to DC. Harmonics flow into the electrical system because of nonlinear electronic switching devices, such as variable frequency drives (VFDs), computer power supplies and energy-efficient lighting.

What causes harmonics in FFT?

Harmonics "happen" when your input to an FFT isn't a pure unmodulated sine wave. Any unexpected distortion in your input waveform generation (from being exactly identical to mix of sin(wt) + cos(wt)) can be the cause of harmonics appearing in an FFT result (above the noise floor and any windowing artifacts).

How do you find the harmonics of a signal?

Each harmonic frequency (f_n) is given by the equation f_n = n • f₁ where n is the harmonic number and f₁ is the frequency of the first harmonic.