公开(公告)号：KR1020130074458A

公开(公告)日：2013-07-04

申请号：KR1020110142527

申请日：2011-12-26

Applicant: 전자부품연구원

Inventor： 송재종 ,  이석필 ,  양창모 ,  신사임 ,  박호종 ,  윤제열 ,  이세원

IPC: G10K11/18

CPC classification number: G10K11/18 ,  G10H1/0008 ,  G10H2210/066

Abstract: PURPOSE: A device and a method for correcting a major melody extracted from polyphonous signals are provided to improve the accuracy of detecting the major melody in respect to various kinds of music by utilizing properties of input signals. CONSTITUTION: A device for correcting a major melody extracted from polyphonous signals includes a memory (200) and a processor (100). The memory stores the corrected major melody. The processor includes a first correction unit (110). If a frequency difference between the major melodies of adjoining frames which are extracted from polyphonous signals is less than a first boundary value, the first correction unit determines the major melodies as an identical sort and forms a melody group. The first correction unit sorts the melody group into a melody tune group and a secondary tune group according to the size of the group. If the secondary tune group and the adjoining melody tune group are in harmonic relations, the frequency of the secondary tune group is corrected according to a rate of an average frequency of the secondary tune group and the adjoining melody tune group. [Reference numerals] (100) Processor; (110) First correction unit; (120) Second correction unit; (130) Third correction unit; (200) Memory; (AA) Extracted major melodies; (BB) Finally corrected major melodies

Abstract translation: 目的：提供一种用于校正从复音信号提取的主旋律的装置和方法，以通过利用输入信号的特性来提高对各种音乐的主旋律的检测精度。 构成：用于校正从复音信号提取的主旋律的装置包括存储器（200）和处理器（100）。 内存存储更正的主旋律。 处理器包括第一校正单元（110）。 如果从复音信号中提取的相邻帧的主旋律之间的频率差小于第一边界值，则第一校正单元将主旋律确定为相同的分类并形成旋律组。 第一个校正单元根据组的大小将旋律组分成旋律调谐组和辅助调谐组。 如果第二调谐组和相邻的旋律调谐组处于谐波关系中，则根据次谐波组和相邻旋律调谐组的平均频率的比率来校正次谐波组的频率。 （附图标记）（100）处理器; （110）第一修正单位; （120）第二修正单位; （130）第三修正单位; （200）内存; （AA）提取主旋律; （BB）最后纠正主要的旋律

公开(公告)号：KR1020120010488A

公开(公告)日：2012-02-03

申请号：KR1020100072072

申请日：2010-07-26

Applicant: 전자부품연구원

Inventor： 송재종 ,  이석필 ,  서경학 ,  박호종 ,  이세원 ,  윤제열

IPC: G10K15/00

CPC classification number: G10L21/0272 ,  G10H2210/031 ,  G10H2250/161

Abstract: PURPOSE: A basic frequency extraction apparatus, vocal melody extraction apparatus, and method thereof are provided to enable a user to easily search a sound source by effectively extracting a vocal melody. CONSTITUTION: A frequency peak detection unit(120) detects a frequency peak in the frequency spectrum of a music signal. A basic frequency candidate determination unit(130) analyzes values corresponding to the location of a peak value. The basic frequency candidate determination unit selects the basic frequency candidate included in the input signal. A basic frequency determination unit(140) selects one or more basic frequency candidates among plural basic frequency candidates.

Abstract translation: 目的：提供基本的频率提取装置，声乐旋律提取装置及其方法，以使用户能够通过有效地提取声乐来轻松地搜索声源。 构成：频率峰值检测单元（120）检测音乐信号的频谱中的频率峰值。 基本频率候选确定单元（130）分析与峰值的位置对应的值。 基本频率候选确定单元选择包括在输入信号中的基本频率候选。 基本频率确定单元（140）在多个基本频率候选中选择一个或多个基本频率候选。

公开(公告)号：KR101140737B1

公开(公告)日：2012-05-03

申请号：KR1020100072072

申请日：2010-07-26

Applicant: 전자부품연구원

Inventor： 송재종 ,  이석필 ,  서경학 ,  박호종 ,  이세원 ,  윤제열

IPC: G10K15/00

Abstract: PURPOSE: A basic frequency extraction apparatus, vocal melody extraction apparatus, and method thereof are provided to enable a user to easily search a sound source by effectively extracting a vocal melody. CONSTITUTION: A frequency peak detection unit(120) detects a frequency peak in the frequency spectrum of a music signal. A basic frequency candidate determination unit(130) analyzes values corresponding to the location of a peak value. The basic frequency candidate determination unit selects the basic frequency candidate included in the input signal. A basic frequency determination unit(140) selects one or more basic frequency candidates among plural basic frequency candidates.

公开(公告)号：KR101350308B1

公开(公告)日：2014-01-13

申请号：KR1020110142527

申请日：2011-12-26

Applicant: 전자부품연구원

Inventor： 송재종 ,  이석필 ,  양창모 ,  신사임 ,  박호종 ,  윤제열 ,  이세원

IPC: G10K11/18

Abstract: 다성 음악 신호에서 추출된 주요 멜로디 교정 장치가 개시된다. 이 장치는 교정된 주요 멜로디가 저장되는 메모리, 및 다성 음악 신호에서 추출된 주요 멜로디의 이웃 프레임 간 주파수 차이가 제1경계 값 미만이면 동일 집단으로 판단하여 집단화하고, 상기 집단화된 집단의 크기에 따라 멜로디 음정 집단과 파생 음정 집단으로 판별하며, 상기 파생 음정 집단이 이웃한 멜로디 음정 집단과 배음 관계이면 상기 파생 음정 집단과 상기 이웃한 멜로디 음정 집단의 평균 주파수의 비율에 따라 상기 파생 음정 집단의 주파수를 교정하는 제1교정부를 포함하는 프로세서를 포함한다. 이에 의해 다성 음악 신호에서 추출된 주요 멜로디가 정확히 교정될 수 있다.