Abstract: Provided is a terminal device. The terminal device includes: a housing; a display screen installed on the housing; a piezoelectric body parallel to the display screen and including a fixed end and a free end, the fixed end being fixed on the housing, and the free end being opposite to the fixed end and being configured to vibrate under driving of an audio signal; and a vibrating body arranged between the display screen and the piezoelectric body, fixedly connected with the free end, and configured to vibrate in a direction perpendicular to the display screen with the vibration of the free end.

Abstract: A method, applied to a mobile terminal having at least two loudspeakers, includes: setting direction information of a target sound field; and determining filtering parameters of at least two filters according to the direction information. The filters have a one-to-one correspondence with the loudspeakers, and are configured to filter audio signals to be output. The audio signals are filtered using the filtering parameters, to at least adjust phases of the audio signals. The adjusted audio signals are output by the loudspeakers. After the audio signals output by the different loudspeakers are superimposed, the superimposed signal is consistent with a direction indicated by the direction information.

Abstract: Provided is a terminal device. The terminal device includes: a housing; a display screen installed on the housing; a piezoelectric body parallel to the display screen and including a fixed end and a free end, the fixed end being fixed on the housing, and the free end being opposite to the fixed end and being configured to vibrate under driving of an audio signal; and a vibrating body arranged between the display screen and the piezoelectric body, fixedly connected with the free end, and configured to vibrate in a direction perpendicular to the display screen with the vibration of the free end.

Abstract: A method, applied to a mobile terminal having at least two loudspeakers, includes: setting direction information of a target sound field; and determining filtering parameters of at least two filters according to the direction information. The filters have a one-to-one correspondence with the loudspeakers, and are configured to filter audio signals to be output. The audio signals are filtered using the filtering parameters, to at least adjust phases of the audio signals. The adjusted audio signals are output by the loudspeakers. After the audio signals output by the different loudspeakers are superimposed, the superimposed signal is consistent with a direction indicated by the direction information.