기타 음 합성을 위한 최적의 SIMD기반 매니코어 프로세서 구현

다국어 초록 (Multilingual Abstract)

Improving operating frequency of processors is no longer today's issues; a multiprocessor technique which integrates many processors has received increasing attention. Currently, high-performance processors that integrate 64 or 128 cores are developing for large data processing over 2, 4, or 8 processor cores. This paper proposes an optimal many-core processor for synthesizing guitar sounds. Unlike the previous research in which a processing element (PE) was assigned to support one of guitar strings, this paper evaluates the impacts of mapping different numbers of PEs to one guitar string in terms of performance and both area and energy efficiencies using architectural and workload simulations. Experimental results show that the maximum area energy efficiencies were achieved at PEs=24 and 96, respectively, for synthesizing guitar sounds with sampling rate of 44.1kHz and 16-bit quantization. The synthesized sounds were very similar to original guitar sounds in their spectra. In addition, the proposed many-core processor was 1,235 and 22 times better than TI TMS320C6416 in area and energy efficiencies, respectively.

참고문헌 (Reference)

1 김미선, "인지모델과 웨이블릿 패킷 변환을 이용한 잡음 제거기 설계" 한국음향학회 25 (25): 325-332, 2006

2 김승희, "실시간 영상 처리를 위한 향상된 영역 경계 검출" 한국컴퓨터정보학회 14 (14): 99-106, 2009

3 조상진, "산조 가야금의 물리적 모델링" 한국음향학회 23 (23): 521-531, 2004

4 강명수, "범용 디지털 신호처리기를 이용한 국악기 사운드 엔진 개발" 한국음향학회 28 (28): 229-238, 2009

5 강명수, "물리적 모델링 합성법에 기반을 둔 줄 없는 기타 구현" 한국음향학회 28 (28): 119-126, 2009

6 정규혁, "광대역 음성부호화기를 위한 매칭퍼슈잇 알고리즘과 CELP 방법을 이용한 고대역 부호화 방법" 한국음향학회 25 (25): 21-29, 2006

7 A. Gentile, "The Impact of Grain Size of the Efficiency of Embedded SIMD Image Processing Architectures" 64 : 1318-1327, 2004

8 조상진, "Synthesis of the Dan Tranh Based on a Parameter Extraction System" AUDIO ENGINEERING SOC 58 (58): 498-507, 201006

9 "Sampling rate"

10 V. Valimaki, "Physical modeling of plucked string instruments with application to real-time sound synthesis" 44 (44): 331-353, 1996

11 Ui-Pil Chong, "Physical model ing of gayageum with application to sound engine in musical synthesizer" 2006

12 Jongmyon Kim, "Performance Evaluation of MultimediaExtensions on Variable Many-Core Processors" 98-104, 2010

13 이시현, "Nios® II 임베디드 프로세서를 사용한 병렬처리 시스템의 설계 및 구현" 한국컴퓨터정보학회 14 (14): 97-103, 2009

14 H. G. Alles, "Music synthesis using real time digit al techniques" 68 (68): 436-449, 1980

15 A. Gentile, "Impact of pixel per processor ratio on embedded SIMD architect ures" 204-208, 2001

16 S. M. Chai, "Heterogeneous Architecture Models forInterconnect-Motivated System Design" 8 (8): 660-670, 2000

17 T. Agerwala, "Computer arch itecture : challenges and opportunities for the next decade" 58-69, 2005

18 M. Karjalainen, "Analy sis, modeling, and real-time sound synthesis of the kantele, a traditional finnish string instrument" 229-232, 1993

19 A. W. Y. Su, "An IIR synthesis method for plucked-string instruments with embedded portamento" 50 (50): 351-362, 2002

20 Luong Van Huynh, "A Massively Parallel Algorithm for Fuzzy Vector Quantization" 한국정보처리학회 16 (16): 411-418, 2009

21 S. Nugent, "A Hierarchical Block-based Modeling Methodology for SoC in GENESYS" 239-243, 2002