Audio file edit method and apparatus for mobile terminal

1. An audio file edit method for a mobile terminal, the method comprising:

executing an audio file edit application;

selecting at least one audio file to be edited in response to a first touch event detected on the touch screen;

displaying an oscillation graph associated with the at least one audio file within an oscillation window of the audio file edit application;

selecting a part of the oscillation graph in response to a second touch event detected on the touch screen; and

displaying the selected part of the oscillation graph within an edit window of the audio file edit application.

2. The method of claim 1 , further comprising displaying text information related to the audio file in synchronization with the oscillation graph.

3. The method of claim 2 , wherein the displaying of text information comprises:

extracting the text information from the audio file; and

presenting the text information within a text window in synchronization with the oscillation graph.

4. The method of claim 2 , wherein the displaying of text information comprises:

playing the audio file at a portion corresponding to the oscillation graph displayed within the oscillation window;

producing the text information by performing speech recognition while playing the audio file; and

presenting the text information within a text window.

5. The method of claim 2 , wherein the displaying of text information comprises presenting text information on the oscillation graph displayed within the oscillation window.

6. The method of claim 5 , wherein the selecting of the part of the oscillation graph comprises selecting the text information corresponding to the selected part of the oscillation graph.

7. The method of claim 1 , wherein the selecting of the part of the oscillation graph comprises defining the part of the oscillation graph by at least one of touching a start point on the oscillation graph and sliding the touch to an end point along a timeline, and touching a start point and an end point on the oscillation graph.

8. The method of claim 1 , further comprising playing, when a part of the oscillation graph is selected, audio data of the audio file corresponding to the selected part of the oscillation graph.

9. The method of claim 1 , wherein the displaying of the selected part of the oscillation graph within an edit window comprises:

designating the selected part as a source audio data in response to a touch event; and

displaying a visual effect of moving the source audio data from the oscillation window to the edit window in response to a drag event.

10. The method of claim 9 , wherein the displaying of the selected part of the oscillation graph within an edit window further comprises displaying the text information corresponding to the selected part of the oscillation graph within the edit window.

11. The method of claim 1 , further comprising:

storing the selected part of the oscillation graph temporarily;

saving the selected part as a ringtone file; and

setting the ringtone file as a ringtone of the mobile terminal.

12. The method of claim 1 , further comprising activating the oscillation window as many times as the number of the selected at least one audio file, when the at least one audio file to be edited is selected.

13. An audio file edit apparatus for a mobile terminal, the apparatus comprising:

a display unit for displaying an audio file edit application screen;

a storage unit for storing the audio file edit application and audio files;

a touch screen for generating a a touch event input by a user; and

a control unit for controlling the display unit to display an oscillation graph associated with an audio file which is selected in response to a first touch event, for selecting a part of the oscillation graph in response to a second touch event, and for displaying the selected part of the oscillation graph within an edit window of the audio file edit application.

14. The apparatus of claim 13 , wherein the control unit controls text information corresponding to the oscillation graph.

15. The apparatus of claim 14 , wherein the file edit application screen comprises:

at least one oscillation window for displaying the oscillation graph;

a text window for displaying the text information;

an edit window for displaying the selected part of the oscillation graph;

a menu bar having at least one of a “file” button for selecting the audio file, a “select” button” for selecting the part of the oscillation graph, a “play” button for playing the selected part of the oscillation graph, and a “save” button” for saving audio data corresponding to the selected part of the oscillation graph; and

at least one navigation button for scrolling at least one of the oscillation graph which is displayed in the oscillation window, the text information which is displayed in the text window, and the selected part of the oscillation graph which is displayed within the edit window.

16. The apparatus of claim 15 , wherein the edit window further displays the text information corresponding to the selected part of the oscillation graph.

17. The apparatus of claim 13 , wherein the control unit acquires the text information by at least one of extracting from the audio file and performing speech recognition while playing the audio file and displays the text information on at least one of the oscillation graph and within a separate text window in synchronization with the oscillation graph.

18. The apparatus of claim 17 , wherein the control unit selects the part of the oscillation graph together with the corresponding text information and displays the selected part of the oscillation graph within the edit window together with the corresponding text information.

19. The apparatus of claim 13 , wherein the control unit controls, when a part of the oscillation graph is selected, to play audio data of the audio file corresponding to the selected part of the oscillation graph.

20. A non-transitory computer readable medium having embodied thereon instructions for an audio file edit method for a mobile terminal, the method comprising:

executing an audio file edit application;

selecting at least one audio file to be edited in response to a first touch event;

displaying an oscillation graph associated with the at least one audio file within an oscillation window of the audio file edit application;

selecting a part of the oscillation graph in response to a second touch event detected on the touch screen; and

displaying the selected part of the oscillation graph within an edit window of the audio file edit application.