Electronic apparatus and control method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorJong-woo KIM
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Abstract
An electronic apparatus is disclosed, which includes an input interface configured to receive an audio signal, a processor configured to process the received audio signal, and an output interface configured to output the processed audio signal, in which the processor is configured to obtain a scale of a first octave by applying a filter bank to the audio signal based on a sampling frequency of the audio signal; down-sample the audio signal; and obtain a scale of a second octave lower than the first octave by applying the filter bank to the down-sampled signal
Claims20
An electronic apparatus, comprising:
- an input interface configured to receive an audio signal;
- a processor configured to process the received audio signal;
- and
- an output interface configured to output the processed audio signal,
- wherein the processor is configured to:
- obtain a scale of a first octave by applying a filter bank to the audio signal based on a sampling frequency of the audio signal;
- down-sample the audio signal;
- and
- obtain a scale of a second octave lower than the first octave by applying the filter bank to the down-sampled signal.
A method of controlling an electronic apparatus, the method comprising:
- obtaining a scale of a first octave by applying a filter bank to an audio signal based on a sampling frequency of an audio signal;
- and
- down-sampling the audio signal, and
- obtaining a scale of a second octave that is lower than the first octave by applying the filter bank to the down-sampled signal.
A non-transitory computer readable storage medium storing a program that is executable by a computer to perform a method for controlling an electronic apparatus, wherein the method comprises:
- obtaining a scale of a first octave by applying a filter bank to an audio signal based on a sampling frequency of an received audio signal;
- down-sampling the audio signal;
- and
- obtaining a scale of a second octave that is lower than the first octave by applying the filter bank to the down-sampled signal.
An electronic apparatus, comprising:
- an input interface configured to receive an audio signal;
- a processor comprising:
- at least one down-sampler configured to down-sample the audio signal;
- a filter bank configured to apply a first set of digital band pass filters to the audio signal received by the input interface to obtain scales of a first octave, and configured to apply a second set of digital band pass filters to the down-sampled audio signal to obtain scales of a second octave,
- wherein center frequencies of the first set of digital band pass filters are different from center frequencies of the second set of digital band pass filters, and the scales of the first octave have higher frequencies than the scales of the second octave.
Dependencies are inferred from the claim text.