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US 8,009,834 B2Granted
Sound reproduction apparatus and method of enhancing low frequency component
AssigneeSamsung Electronics Co., Ltd.
InventorByeong-seob Ko
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AssigneeSamsung Electronics Co., Ltd.
InventorByeong-seob Ko
Estimating the term…
A sound reproduction apparatus and method enhances a low frequency component in a reproduced sound signal using a reflective sound. The sound reproduction apparatus delays and controls gains of input signals, generates a predetermined number of reflective sound signals to enhance a low frequency component, and outputs a sum of reflective sound signals with the enhanced low frequency component.
A sound reproduction apparatus comprising:
A sound reproduction apparatus comprising:
A sound reproduction method comprising:
A sound reproduction method comprising:
A non-transitory computer readable recording medium having embodied thereon a computer program for executing a sound reproduction method, the method comprising:
A non-transitory computer readable recording medium having embodied thereon a computer program for executing a sound reproduction method, the method comprising:
A sound reproduction apparatus comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Stereophonic arrangements: circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker…
Arrangements for producing a reverberation or echo sound: using electronic time-delay networks
Circuits for transducers: for correcting frequency response
Two-channel systems: non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
About 3 years 8 months of term left · ends 28 Jun 2030 (estimated)
This application claims priority under 35 U.S.C. & 119(a) from Korean Patent Application No. 10-2005-0084239, filed on Sep. 9, 2005, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.
1. Field of the Invention
The present general inventive concept relates to a sound reproduction apparatus and method, and more particularly, to a sound reproduction apparatus and method capable of enhancing a low frequency component in a reproduced sound signal using a reflective sound.
These and/or other aspects and advantages of the present general inventive concept will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram illustrating a conventional low frequency enhancement system;
FIG. 2 is a diagram illustrating a sound reflection characteristic in a space;
Reference will now be made in detail to the embodiments of the present general inventive concept, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments are described below in order to explain the present general inventive concept by referring to the figures.
The present general inventive concept enhances a low frequency component using a mental acoustic approach that uses a reflective sound based on a space impulse response characteristic. Also, the present general inventive concept can provide the enhanced low frequency component with externalization using an amount of delay based on non-linearity of hearing space and sense.
FIG. 2 is a diagram illustrating a sound reflection characteristic in a space. Referring to FIG. 2, the space includes two sound sources, i.e., speakers 11 and 13, and a listener 15 who listens to sounds reproduced through the speakers 11 and 13. In this case, both ears of the listener 15 hear sounds directly from the speakers 11 and 13 and sounds reflected from a wall of the space as well. A solid line indicates a direct sound and other lines (dotted lines) indicate a reflective sound.