Apparatus and method for adjusting volume in terminal

摘要

A method terminal includes an apparatus for automatically adjusting volume in the terminal. An automatic volume adjuster extracts a representative volume from individual frame information of an audio file, and adjusts a master volume by a deviation between the extracted representative volume and a reference volume, and a controller plays the audio file with the master volume adjusted by the automatic volume adjuster.

主权项

1. A terminal comprising:
a representative volume extractor configured to:
extract a gain from a header of each of a plurality of frames of an audio file and set an average gain of all extracted gains as a representative volume; a reference volume extractor configured to:
set a master volume of a last played audio file as the representative volume if there is an audio file in a music playback list, andset a predetermined volume value as the reference volume if there is no audio file in the music playback list; a comparator configured to compare the representative volume provided from the representative volume extractor with the reference volume provided from the reference volume extractor; a volume adjuster configured to:
adjust the master volume by a deviation between the representative volume and the reference volume if the representative volume is different from the reference volume,adjust the master volume to correspond to a volume-up or a volume-down if the volume-up or the volume-down occurs during playback of the audio file with the adjusted master volume, andtransfer the adjusted master volume to an audio file player; the audio file player is configured to play the audio file with the master volume provided from the volume adjuster; and a controller configured to
determine whether automatic volume adjustment is set if playback of the audio file is selected in a music playback mode,switch to an automatic volume adjustment mode if the automatic volume adjustment is set, andcontrol the audio file player to play the audio file with the master volume provided from the volume adjuster in the automatic volume adjustment mode.