Ключевые слова: abstract, amplitude, audio, audiowave, background, blue, design, diagram, display, electric, electronic, equipment, frequency, glow, graph, green, high, illustration, image, lab, laboratory, line, music, oscillating, oscillations, oscilloscope, phase, radio, red, science, scientific, sine, sound, tech, technology, test, trace, vibration, volume, wave, waveform, wavelength,