# Will changing amplitude change the frequency?

Will changing the amplitude change the frequency of a wave, or is it possible for a specific frequency (50 Hz. for example) to generate from shifting amplitude patterns?

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It may change the wavelength though . Consider transmission of a wave on a lighter string to a heavier and more stiff one . –  nonagon May 8 '13 at 19:06
If the amount of power driving the wave is fixed, then yes, increasing the amplitude would certainly lower the frequency. –  Ataraxia May 8 '13 at 19:22

To illustrate it I'll show you this for a harmonic wave: $$x(t)=Acos(\omega t+\phi)$$ You can vary the amplitude (for example, adding another wave of the same frecuency and phase) and the resulting wave will be just: $$x'(t)=A'cos(\omega t+\phi)$$