They have irregular periods with amplitudes of several magnitudes. The transducer vibrates the sonotrode at low amplitudes and high frequencies. Grids are designed to supply voltages at largely constant amplitudes. Different sounds have been observed with different amplitudes and frequencies, implying different purposes. The wave speeds are diminished and the wave amplitudes are increased. Conversely, windows that can distinguish components with similar frequencies and amplitudes are called "high resolution". The MP3 Data blocks contain the (compressed) audio information in terms of frequencies and amplitudes. This effect is attributed to the different vibrational amplitudes of isotopologues. For larger amplitudes, the nonlinearity is pronounced. This method measures the count of various signals with certain amplitudes. The concept of amplitudes described above is relevant to quantum state vectors. Expectation values of operators which are not diagonal involve the phases of the quantum amplitudes. From them, computations of probability amplitudes are straightforwardly given. A close match means mechanical resonance that can result in large amplitudes. That change, from probabilities to probability amplitudes, complicates the mathematics without changing the basic approach.