Equalization method using equal loudness curve based on the IS0266:2003 standard, and sound output apparatus using the same
OwnerDae-Hoon Kwoninventor
Life of this patent
Estimating the term…
Abstract
An equalization method using equal loudness curve, and a sound output apparatus using the same are disclosed. An audio signal is equalized using a standard loudness curve so as to increase a loudness of an audio signal. A sound quality can be significantly enhanced with the enhancement of a sound cleanness and quality when being adapted to a communication apparatus such as a telephone terminal, a transmitter or a repeater. When it is adapted to an audio apparatus such as a MP3, a common audio system, a car audio system, etc., it is possible to enhance a sound cleanness and quality, and a hearing ability. It can be used as a hearing aid.
Claims11
In a method for equalizing an audio signal of a communication repeater, communication equipment and a sound instrument, an equalization method using a standard equal loudness curve, comprising:
- a step for equalizing an audio signal using a standard audiogram, said standard audiogram is an equal loudness contour based on the ISO266:2003 standard, for increasing a loudness of an audio signal.
In a sound output apparatus for converting an electric audio signal into an audible sound, a sound correction output apparatus using a standard equal loudness curve, comprising:
- an interface which is connected with a sound instrument and receives an audio signal from the sound instrument;
- a memory which stores a standard audiogram (equal loudness contour based on the ISO266:2003 standard);
- an audio signal process unit which equalizes an audio signal inputted via the interface in accordance with a standard audiogram stored in the memory;
- an output unit which coverts an analog signal, which is outputted from the audio signal process unit, into a sound and outputs the same;
- and
- a control unit which controls the operations of the memory and the audio signal process unit.
Dependencies are inferred from the claim text.