Portable terminal, hearing aid, and method of indicating positions of sound sources in the portable terminal

1. A method of indicating the position of a sound source in a portable terminal having a touch screen, the method comprising:

receiving sound signals of a plurality of sound sources;

determining respective distances between the plurality of sound sources and the portable terminal, and respective directions of the plurality of sound sources from the portable terminal, based on the received sound signals of the plurality of sound sources;

determining positions of the plurality of sound sources on the touch screen based on the determined distances and directions of the plurality of sound sources;

displaying the determined positions of the plurality of sound sources on the touch screen;

recognizing a user gesture input selecting at least one of the positions of the plurality of sound sources displayed on the touch screen; and

controlling volume of a sound source at the selected at least one position according to the user gesture input.

2. The method of claim 1 , wherein the determining of the positions of the plurality of sound sources comprises:

selecting at least one sound source to be displayed on the touch screen from among the plurality of sound sources; and

determining the position of the selected at least one sound source on the touch screen.

3. The method of claim 1 , wherein the receiving of the sound signals of the plurality of sound sources comprises:

receiving the sound signals of the plurality of sound sources from an external hearing aid.

4. The method of claim 1 , wherein, if the user gesture input indicates a sound source-selection direction on the touch screen, the controlling of the volume of the sound source comprises:

controlling the volume of a sound source corresponding to the sound source-selection direction.

5. The method of claim 1 , wherein, if the user gesture input indicates a sound source-selection range on the touch screen, the controlling of the volume of the sound source comprises:

controlling the volume of a sound source within the sound source-selection range.

6. The method of claim 1 , wherein, if the user gesture input indicates a sound source-selection distance on the touch screen, the controlling of the volume of the sound source comprises:

controlling the volume of a sound source at the sound source-selection distance.

7. The method of claim 1 , wherein the controlling of the volume of the sound source comprises one of:

muting a sound of the sound source,

increasing the volume of the sound signal of the sound source above the volumes of the sound signals of the other sound sources, and

decreasing the volume of the sound signal of the sound source below the volumes of the sound signals of the other sound sources.

8. The method of claim 1 , further comprising:

determining distances and directions of objects corresponding to the plurality of sound sources using reflected-wave signals.

9. The method of claim 1 , further comprising:

calculating sound strengths of the plurality of sound sources; and

displaying the sound strengths of the plurality of sound sources on the touch screen.

10. A non-transitory computer-readable storage medium storing instructions, that when executed, cause at least one processor to perform the method of claim 1 .

11. A portable terminal having a touch screen, comprising:

a touch screen configured to display positions of a plurality of sound sources; and

a controller configured to

determine respective distances between the plurality of sound sources and the portable terminal, and respective directions of the plurality of sound sources from the portable terminal, based on the received sound signals of the plurality of sound sources,

determine the positions of the plurality of sound sources on the touch screen based on the determined distances and directions of the plurality of sound sources,

control display of the determined positions of the plurality of sound sources on the touch screen,

recognize a user gesture input selecting at least one of the positions of the plurality of sound sources displayed on the touch screen, and

control volume of a sound source at the selected at least one position according to the user gesture input.

12. The portable terminal of claim 11 , wherein the controller is further configured to:

select at least one sound source to be displayed on the touch screen from among the plurality of sound sources, and

determine the position of the selected at least one sound source on the touch screen.

13. The portable terminal of claim 11 , further comprising:

a communication unit configured to receive the sound signals of the plurality of sound sources,

wherein the communication unit receives the sound signals of the plurality of sound sources from an external hearing aid.

14. The portable terminal of claim 11 , wherein if the user gesture input indicates a sound source-selection direction on the touch screen, the controller is further configured to control the volume of a sound source corresponding to the sound source-selection direction.

15. The portable terminal of claim 11 , wherein if the user gesture input indicates a sound source-selection range on the touch screen, the controller is further configured to control the volume of a sound source within the sound source-selection range.

16. The portable terminal of claim 11 , wherein if the user gesture input indicates a sound source-selection distance on the touch screen, the controller is further configured to control the volume of a sound source at the sound source-selection distance.

17. The portable terminal of claim 11 , wherein the controller is further configured to control volume of the sound of the sound source according to one of:

mutes a sound of the sound source,

increases the volume of the sound signal of the sound source above the volumes of the sound signals of the other sound sources, and

decreases the volume of the sound signal of the sound source below the volumes of the sound signals of the other sound sources.

18. The portable terminal of claim 11 , further comprising:

a reflected-wave transceiver configured to transmit an electromagnetic-wave signal and to receive a reflected-wave signal,

wherein the controller is further configured to determine distances and directions of objects corresponding to the plurality of sound sources using reflected-wave signals.

19. The portable terminal of claim 11 , wherein the controller is further configured to calculate sound strengths of the plurality of sound sources, and displays the sound strengths of the plurality of sound sources on the touch screen.