A dielectric elastomer vibration system (A1, A2, A3, A4, A5, A6, A7), comprising: a dielectric elastomer vibrator that includes a dielectric elastomer layer (11, 11A, 11B) and a pair of electrode layers (12, 12A, 12B) sandwiching the dielectric elastomer layer; and a power supply device that is configured to produce a potential difference across the pair of electrode layers, wherein the dielectric elastomer vibrator is configured to exhibit a relationship between the potential difference across the pair of electrode layers (12, 12A, 12B) and an amount of deformation induced by the potential difference, the relationship having: a high-response region in which a relatively large deformation is induced in response to change of the potential difference; a low-response region of lower-potential difference corresponding to a lower potential difference than the high-response region and in which a relatively small deformation is induced in response to change of the potential difference; and a low-response region of higher-potential difference corresponding to a higher potential difference than the high-response region and in which a relatively small deformation is induced in response to change of the potential difference or in which a break point of the dielectric elastomer layer (11, 11A, 11B) is included, and characterized in that the power supply device is configured to produce the potential difference by applying a vibration signal voltage (Va, Vb) across the pair of electrode layers, the vibration signal voltage being generated by combining an alternating waveform voltage (V1, V1a, V1b) with a direct current bias voltage corresponding to a potential difference falling in the high-response region, the potential difference produced by the vibration signal voltage has a maximum value and a minimum value both falling within the high-response region, and the potential difference produced by the bias voltage corresponds to a median value of the potential difference in the high-response region. a dielectric elastomer vibrator that includes a dielectric elastomer layer (11, 11A, 11B) and a pair of electrode layers (12, 12A, 12B) sandwiching the dielectric elastomer layer; and a power supply device that is configured to produce a potential difference across the pair of electrode layers, wherein the dielectric elastomer vibrator is configured to exhibit a relationship between the potential difference across the pair of electrode layers (12, 12A, 12B) and an amount of deformation induced by the potential difference, the relationship having: a high-response region in which a relatively large deformation is induced in response to change of the potential difference; a low-response region of lower-potential difference corresponding to a lower potential difference than the high-response region and in which a relatively small deformation is induced in response to change of the potential difference; and a low-response region of higher-potential difference corresponding to a higher potential difference than the high-response region and in which a relatively small deformation is induced in response to change of the potential difference or in which a break point of the dielectric elastomer layer (11, 11A, 11B) is included, and characterized in that the power supply device is configured to produce the potential difference by applying a vibration signal voltage (Va, Vb) across the pair of electrode layers, the vibration signal voltage being generated by combining an alternating waveform voltage (V1, V1a, V1b) with a direct current bias voltage corresponding to a potential difference falling in the high-response region, the potential difference produced by the vibration signal voltage has a maximum value and a minimum value both falling within the high-response region, and the potential difference produced by the bias voltage corresponds to a median value of the potential difference in the high-response region.