Black sound waves. Music audio frequency, voice line waveform, electronic radio signal, volume level symbol handdrawn doodle vector premium vector by devitaayusilvianingtyas

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vector background curve graphic element illustration set abstract form pattern black technology line wave funky symbol concept icon playing electronic sound digital pulse audio music radio voice simple frequency dj song player track volume level tune meter recorder spectrum beat signal doodle earthquake amplitude soundwave equalizer vibration sonic wavelength Waveform

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