US 7,547,840 B2
Method and apparatus for outputting audio data and musical score image
Dong-Hoon Noh, Gumi-si (Korea, Republic of); and Joo-Sub Kim, Gumi-si (Korea, Republic of)
Assigned to Samsung Electronics Co., Ltd, Suwon-si (Korea, Republic of)
Filed on Jul. 14, 2006, as Appl. No. 11/485,986.
Claims priority of application No. 10-2005-0064712 (KR), filed on Jul. 18, 2005; and application No. 10-2006-0051072 (KR), filed on Jun. 07, 2006.
Prior Publication US 2007/0012165 A1, Jan. 18, 2007
Int. Cl. G10H 7/00 (2006.01)
U.S. Cl. 84—601  [84/600] 21 Claims
OG exemplary drawing
 
1. A method for outputting a musical score corresponding to audio data, the method comprising:
removing words from audio data and extracting a tone from the wordless audio data while the audio data is being reproduced;
converting the tone into a frequency;
calculating an average value of frequencies extracted during a time period and establishing the average value as a threshold value;
identifying a frequency less than the threshold value as a monotone and converting the corresponding frequency into tone information data;
identifying a frequency equal to or greater than the threshold value as a polyphonic tone and converting the corresponding frequency into tone information data; and
displaying a musical score corresponding to the tone information data.