Ключевые слова: abstract, amplifier, amplitude, audio, background, black, bright, design, diagram, digital, display, electronic, energy, equalizer, equipment, flowing, futuristic, glowing, gradient, graph, graphic, illustration, level, line, luminosity, multicolor, music, noise, pattern, play, pulse, radio, rainbow, record, science, scientific, song, sound, spectrum, stereo, studio, tech, technology, track, vibration, volume, wave, waveform,