Cold brew coffee extraction device for adjusting sonic vibration based on sound signal

A cold brew coffee extraction device for adjusting a sonic vibration based on a sound signal, the cold brew coffee extraction device comprising:

• a current support configured to generate an electric field;
• a magnetic vibrator configured to generate a magnetic field, and to be vibrated by the electric field generated by the current support due to a change in a polarity of an alternating current;
• a plate coupled to the magnetic vibrator to transmit the vibration to a fluid comprising a particulate matter;
• and
• a vibration adjustment circuit configured to, in a first mode, adjust the vibration based on setting information inputted through a user interface and comprising an amplitude and a frequency, and in a second mode, to adjust the vibration based on the setting information and an external sound source comprising an amplitude and a frequency,
• wherein the vibration adjustment circuit comprises:
• a sound source processor configured to extract sound source information from the external sound source;
• and
• a vibration adjuster configured to adjust the vibration by generating a control signal of the first mode for adjusting the vibration of the magnetic vibrator according to the amplitude and the frequency of the setting information, and by generating a control signal of the second mode for adjusting the vibration of the magnetic vibrator according to the amplitude and the frequency included in each of the setting information and the sound source information.