Method of setting equalizer for audio file and method of reproducing audio file
AssigneeSamsung Electronics Co., Ltd.
InventorGun-han Park
Life of this patent
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Abstract
A method of setting an equalizer so as to enlarge a sound field in reproducing an audio file and a method of reproducing an audio file thereby, includes: dividing an input audio file into segments with a predetermined time length; extracting an audio feature value for each segment; determining equalizer information for reproducing each segment by the use of the extracted feature value; and determining an equalizer sequence for the audio file by the use of the determined equalizer information of each segment. Since the equalizer setting information can be automatically changed without user manipulation, the user can listen to an audio file of which the sound field is dynamically enlarged.
Claims11
A method of setting an equalizer for an audio file, the method comprising:
- dividing an input audio file into segments;
- extracting an audio feature value for each segment;
- determining equalizer information for reproducing each segment by the use of the extracted feature value;
- and
- determining an equalizer sequence of the audio file by the use of the determined equalizer information for each segment.
A method of reproducing an audio file, the method comprising:
- receiving an audio file;
- acquiring an equalizer sequence including equalizer information on a series of segments of the audio file;
- converting a PCM waveform obtained by decoding the audio file into frequency domain information;
- applying the equalizer sequence to the frequency domain information and generating modified frequency domain information;
- and
- converting the modified frequency domain information into the PCM waveform and reproducing the PCM waveform.
Dependencies are inferred from the claim text.