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Sinusoid fading signal on blue grid paper. Black curve sound wave on checkered paper. Voice or music audio concept. Pulse line in school notebook. Fading out electronic radio graphic. Vector premium vector by [email protected]

Sinusoid fading signal on blue grid paper. Black curve sound wave on checkered paper. Voice or music audio concept. Pulse line in school notebook. Fading out electronic radio graphic. Vector stock vector

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vector graphic paper medical line wave heart school sound monitor notebook pulse audio music radio record frequency grid science page sketch peak volume analog spectrum graph chart beat acoustic rhythm blueprint diagram fade checkered axis decibel math earthquake impulse amplitude oscillation equalizer phase vibration wavelength Waveform harmonic sinusoid cosine

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