US Patent 12070771 Vibration signal generation device

A desired effect can be exerted on the mental and physical state of a listener of a piece of music with a vibration based on the piece of music even when the piece of music has almost no relaxation or awakening effect. As a vibration signal for vibrating a vibration generation device while the piece of music is being played, the audio signal in the band corresponding to the mode is extracted from the audio signal of the music, and a vibration signal is generated based on the extracted audio signal.