A multi-screen terminal, comprising a detecting circuit, a processing circuit, a power amplification circuit and a storage circuit, wherein:
- the detecting circuit is configured to detect a current opening/closing angle or angles between the respective display screens, and output the detected current opening/closing angle or angles between the respective display screens to the processing circuit;
- the processing circuit is configured to select, according to the detected current opening/closing angle or angles between the respective display screens, a group of audio drive parameters prestored in the storage circuit, and output the group of audio drive parameters to the power amplification circuit;
- or, determine whether the detected current opening/closing angle or angles between the respective display screens and the current audio drive parameters are opening/closing angle or angles and audio drive parameters prestored in the storage circuit corresponding to an optimal sound field playing effect, respectively, and if not, give a prompt as to whether the current opening/closing angle or angles between the respective display screens and/or the current audio drive parameters need to be adjusted;
- the power amplification circuit is configured to output an audio according to the audio drive parameters;
- and
- the storage circuit is configured to prestore at least one set of correspondence relationships among the opening/closing angles between the respective display screens, the sound field playing effects and the audio drive parameters;
- wherein the processing circuit selecting, according to the detected current opening/closing angle or angles between the respective display screens, a group of audio drive parameters prestored in the storage circuit, and outputting the group of audio drive parameters to the power amplification circuit comprises:
- selecting audio drive parameters prestored in the storage circuit corresponding to the detected current opening/closing angle or angles between the respective display screens, and outputting the selected audio drive parameters to the power amplification circuit;
- or,
- calculating similarity between the detected current opening/closing angle or angles between the respective display screens and the opening/closing angles between the respective display screens prestored in the storage circuit, and selecting the audio drive parameters corresponding to a prestored opening/closing angle or angles with the maximum similarity with the current opening/closing angle or angles, and outputting the audio drive parameters to the power amplification circuit:
- wherein assuming that the prestored opening/closing angles between the respective display screens are arrays A1 to An, where n is the number of sets of correspondence relationships among the prestored opening/closing angles between the respective display screens and the sound field playing effects, and the detected current opening/closing angle or angles between the respective display screens form an array B, the processing circuit calculating similarity between the detected current opening/closing angle or angles between the respective display screens and the opening/closing angles between the respective display screens prestored in the storage circuit comprises:
- calculating differences between corresponding array elements in the array B and in each of the arrays A1-An and variance and/or weighted average of each group of differences;
- wherein
- the smaller the variance and/or weighted average calculated from the array B and an array Ai, the greater the similarity of the array B and the array Ai, where i is a natural number between 1 and n.