Dec.14 2012 (Friday) – Oral / Student paper competition Room Room A Room B Room C Room D Topic/ Chair/ Time Networking Intelligent Electronic Circuits and Systems Materials and Mechanical Engineering(I) Student Paper Competition Prof. Nai-Wei Lo Prof. Kuan-Jung Chung Prof. Jun-Ing Ker Prof. Jieh-Shian Young 14:20 15:40 N1-1 ID76 I1-1 ID160 M1-1 ID173 Z1-1 ID40 A Case of Security Encryption Storage System Based on SAN environments Changyan Di, Kuan-Ching Li, Jason C. Hung , Qi Yu , Rui Zhou,Chao-Hung, Qingguo Zhou Design of a Transparent Pipeline Based on Synchronous Elastic Circuits Ren-Der Chen, Sheng-Hung Chang Applying the Principles of Lean Manufacturing to Optimize Conduit Installation Process Jun-Ing Ker, Yichuan Wang Development of MEMS Gyroscope-Based Sensing Module for Rotating Machine Performance Characterization Guo-Hua Feng , Fu-Tun Chang, N1-2 ID169 I1-2 ID111 M1-2 ID149 Z1-2 ID43 A Secure Routing Protocol to Prevent Co-operative Black Hole Attack in MANET Nai-Wei Lo, Fang-Ling Liu Design of a Smart Battery System for Laptop Computer Yu-Shan Cheng, Jing-Hsiau Chen, Yi-Feng Luo, Chun-Wei Ko, Yi-Hua Liu Integration Design and installation of girder systems in the injection section of Taiwan Photon Source Keng-Hao Hsu, Wei-Yang Lai, Yung-Hui Liu, Che-kai Chan, Chih-Sheng Yang, Chih-Sheng Chen, His-Cho Ho, Pei-Lung Sung, Shen-Yaw Perng, Tse-Chuan Tseng, Din-Goa Huang, June-Rong Chen A Set-Checking Algorithm for Mining Maximal Frequent Itemsets from Data Streams Ye‐In Chang, Meng‐Hsuan Tsai, Chia‐En Li, Pei‐Ying Lin N1-3 ID200 I1-3 ID88 M1-3 ID39 Z1-3 ID86 IP Address Management in Virtualized Cloud Environments Chen-Hao Ku, Kuan-Ching Li, Ching-Hsien Hsu, Kuan-Chou Lai, Meng-Yen Hsieh, Tien-Hsiung Weng, Hai Jiang A Sigma Delta ADC Design for Audio Application Chin-Fa Hsieh, Chun-Sheng Chen, Kang-Ni Lin Effect of Anisotropy Parameters on the Initiation of Plastic Yielding in Thin Hollow Disks Subject to Thermo-Mechanical Loading Sergei Alexandrov, Elena Lyamina, Yeau-Ren Jeng An Intelligent Sensorless Drive Strategy for a Brushless DC Motor Based on Back-EMF Detection Seng-Chi Chen, Ying-Jyh Lin, Ming-Mao Hsu, Yung-Nan Hu N1-4 ID125 I1-4 ID80 M1-4 ID41 Z1-4 ID115
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Dec.14 2012 (Friday) – Oral / Student paper competition
Room Room A Room B Room C Room D
Topic/
Chair/
Time
Networking Intelligent Electronic
Circuits and Systems
Materials and Mechanical
Engineering(I) Student Paper Competition
Prof. Nai-Wei Lo Prof. Kuan-Jung Chung Prof. Jun-Ing Ker Prof. Jieh-Shian Young
14:20
15:40
N1-1 ID76 I1-1 ID160 M1-1 ID173 Z1-1 ID40
A Case of Security Encryption Storage
System Based on SAN environments
Changyan Di, Kuan-Ching Li, Jason C.
Hung , Qi Yu , Rui Zhou,Chao-Hung,
Qingguo Zhou
Design of a Transparent Pipeline Based
on Synchronous Elastic Circuits
Ren-Der Chen, Sheng-Hung Chang
Applying the Principles of Lean
Manufacturing to Optimize Conduit
Installation Process
Jun-Ing Ker, Yichuan Wang
Development of MEMS
Gyroscope-Based Sensing Module for
Rotating Machine Performance
Characterization
Guo-Hua Feng , Fu-Tun Chang,
N1-2 ID169 I1-2 ID111 M1-2 ID149 Z1-2 ID43
A Secure Routing Protocol to Prevent
Co-operative Black Hole Attack in
MANET
Nai-Wei Lo, Fang-Ling Liu
Design of a Smart Battery System for
Laptop Computer
Yu-Shan Cheng, Jing-Hsiau Chen, Yi-Feng
Luo, Chun-Wei Ko, Yi-Hua Liu
Integration Design and installation of
girder systems in the injection section
of Taiwan Photon Source
Keng-Hao Hsu, Wei-Yang Lai, Yung-Hui
Liu, Che-kai Chan, Chih-Sheng Yang,
Chih-Sheng Chen, His-Cho Ho, Pei-Lung
Sung, Shen-Yaw Perng, Tse-Chuan Tseng,
Din-Goa Huang, June-Rong Chen
A Set-Checking Algorithm for Mining
Maximal Frequent Itemsets from Data
Streams
Ye‐In Chang, Meng‐Hsuan Tsai, Chia‐En
Li, Pei‐Ying Lin
N1-3 ID200 I1-3 ID88 M1-3 ID39 Z1-3 ID86
IP Address Management in Virtualized
Cloud Environments
Chen-Hao Ku, Kuan-Ching Li, Ching-Hsien
Hsu, Kuan-Chou Lai, Meng-Yen Hsieh,
Tien-Hsiung Weng,
Hai Jiang
A Sigma Delta ADC Design for Audio
Application
Chin-Fa Hsieh, Chun-Sheng Chen,
Kang-Ni Lin
Effect of Anisotropy Parameters on the
Initiation of Plastic Yielding in Thin
Hollow Disks Subject to
Thermo-Mechanical Loading
Sergei Alexandrov, Elena Lyamina,
Yeau-Ren Jeng
An Intelligent Sensorless Drive
Strategy for a Brushless DC Motor
Based on Back-EMF Detection
Seng-Chi Chen, Ying-Jyh Lin, Ming-Mao
Hsu, Yung-Nan Hu
N1-4 ID125 I1-4 ID80 M1-4 ID41 Z1-4 ID115
Applying General Probabilistic Neural
Network to Adaptive Measurement
Fusion
Li-Wei Fong, Pi-Ching Lou, Kai-Yung Lin,
Chien-Liang Chuang
The Function Catoptric LED Luminaire
in T8 Form Factor
Chuang-Jan Chang, Yi-Hsuang Tseng,
Chiang-Wei Huang, Bor-Jen Wu, Shu-Lin
Hwang
Design and Surface Roughness
Analysis of Thin-Sheet Plastic Injection
Forming
Dyi-Cheng Chen, Jun-Yan Pan, Juan-Wei
Gao, Wen-Jong Chen
Innovative Designs for Quartz Crystal
Microbalance
Chih-Chi Lai, Shu Jung Chen, Chih-Hsiung
Shen
N1-5 ID151 I1-5 ID205 M1-5 ID148
Reorder Adapting TCP
Yi-Cheng Chan, Chien-Yu Chen,
Yu-Shuo Lee
Implementation and Study of
Constant-Frequency LLC Resonant
Converter
Chung,Shi-Yi Lin, Shih-Kuen, Hsiau-Hsian
Nien, Chien-Ming Hong, Yi-Nung
Simultaneous thickness measurement
and material composition analysis
using X-ray Fluorescence technique
Hsiao-Wen Wu , Xuan-Loc Nguyen
Dec.14 2012 (Friday) - Oral/ Student paper competition
Room Room A Room B Room C Room D
Topic /
Chair/
Time
Control and Software Engineering(I) Intelligent Electronic
Circuits and Systems
Materials and Mechanical
Engineering(I) Student paper competition
Prof. Yi-Nung Chung Prof. Tsung-Chu Huang Prof. Yeong-Lin Lai Prof. Jieh-Shian Young
16:00 –
17:20
C1-1 ID204 I2-1 ID129 M2-1 ID191 Z2-1 ID123
Backup Host Plan for Banking
Information System Based on Capacity
on Demand Model
Ming-Tsung, Yeh,Wan-Chun Liu, Yi-Nung
Chung,
Dependable Embedded Memory for
Intelligent Systems
Yen-Chieh Huang, Tsung-Chu Huang
A New Low-Temperature Fabrication
Method of Dye-Sensitized Solar Cells
Yeong-Lin Lai, Shin-Hong Chen,
Jiong-Heng Lu, Jia-Shan Ting
Semi-active Control of Tunable Hybrid
Shape Memory Material for Vibration
Attenuation
Jinsiang Shaw, Jiun-Du Huang
C1-2 ID55 I2-2 ID113 M2-2 ID176 Z2-2 ID185
Power Compensation Methodology for
Electric Vehicles
Chien-An Chen, Ming-Chih Lin
A Novel Fuzzy Neural Network
Controller for Maglev System with
Controlled-PM Electromagnets
Seng-Chi Chen, Ying-Jyh Lin, Van-Sum
Nguyen, Ming-Mao Hsu,
Portable Measurement System for
Static and Dynamic Characterization
of MEMS Component
Hsiao-Wen Wu, Liang-Chia Chen,
Abraham Mario Tapilouw Abraham,
Xuan-Loc Nguyen , Jin-Liang Chen
Designing the Bandwidth of Zero
Phase Filter of Iterative Learning
Controller by Improved Particle Swarm
Optimization
Shu-Ting Li, Jen-Ai Chao, Yi-Hao Li,
Yi-Cheng Huang
C1-3 ID69 I2-3 ID119 M2-3 ID107 Z2-3 ID192
Control Strategies Development for a
Series Hydraulic Hybrid Vehicle Based
on Engine Experimental Map
Chih-Keng Chen, Tri-Vien Vu, Chih-Wei
Hung, Chuan-Sian Wang
CMOS Transimpedance Amplifiers for
Optical Wireless Communications
Roger Yubtzuan Chen, Zong-Yi Yang
Detection of CO Concentration by
using Sn SPR Apparatus and
Common-Path Heterodyne
Interferometer
Ke-Ming Chen, Chih-Hsiung Shen,
A Cell Culture System with
Programmable Physical Stimulation
for Human Mesenchymal Stem Cell
Differentiation and Promotion
Tzu-Yu Chuang, Yu-Sheng Chuang, Nancy
Ching-Heng Chen Wang, Kerwin Wang
C1-4 ID110 I2-4 ID158 M2-4 ID114 Z2-4 ID194
Development of a Fuzzy-Control-Based
Battery Charging Technique for Li-ion
Battery Module for Light Electrical
Vehicles
Yi-Hsun Chiu, Chun-Liang Liu, Yi-Feng
Luo, Jung-Hsien Chen, Yi-Hua Liu
Using LC-3 Soft Core on an FPGA
Development Board for
Microprocessor Labs
Yuan-Jhang Liao, Wing-Kwong Wong
Magnetic field correction based on
intelligent shimming method
Jui-Che Huang, Ching-Shiang Hwang
A Spray Method for Dye Sensitized
Solar Cells
Yeong-Lin Lai , Yi- Hsien Huang
C1-5 ID65 I2-5 ID102 M2-5 ID87
Analysis of Voltage Variations a
Large-Scale Offshore Wind Farm
Connected to Taipower Grid
Li Wang, Chun-Jui Yeh, Min-Han Hsieh,
Cheng-Tai Wu, Chieh-Lung Lu
Sizing Cloud Applications with ISO/IEC
19761: A case study
Wen-Ming Han, Wei-Tso Chen
Constructing an Integrated
Communication and Oriented
Protocols into EV Preliminary
Operation:A Case Study of EV
Surveillance Application
Chan Wei Hsu, Yu Chi Shiue, Shun Li
Wang, Hou Yu Huang, Cheng-Ruei Wei
Dec.15 2012 (Saturday) - Oral
Room Room A Room B Room C Room D
Topic /
Chair
Time
Control and Software Engineering(II) Signal Processing
Control and Software Engineering
(III) Artificial Intelligence
Prof. Seiji Sugiyama Prof. Kuan-Jung Chung Prof. Yoko Amano Prof. Kuo-Yi Li
The Development of Estimating The Design of Capacitive Coupling Using Hedge Algebra to Control varied Prognostic Diagnosis of Hollow Ball
Deviation Directly from Point Clouds
Cheng-Tiao Hsieh
Bandpass Filter Using Stepped
Impedance Resonator
Chien-Hung Chen,Hua-Ming
Chen,Chien-Chen Diao,Wei-Kuo Chia,
Cheng-Fu Yang
parameter object
Trung Kien Ngo,Duy Tien Nguyen,Tuan Quoc
Duong,Huy Ngoc Vu,Tan Duc Vu
Screw Pretension on Preload Loss
through Sensed Vibration Signals
Yi-Cheng Huang,Yu-Shi Chen,Shi-Lun
Sun,Kuan-Heng Peng
P1-13 ID184 P2-13 ID141 P3-13 ID159 P4-13 ID188
Effects of BaTi4O9 Concentration on
Dielectric Constants of the
Polyetherimide/BaTi4O9 Composites
Wei-Kuo Chia,Chia-Ching Wu,Cheng-Fu
Yang,Chien-Chen Diao,Chean-Cheng Su
Conceptual Information Retrieval System
based on automatically constructed
Semantic Word Network
Ko-Li Kan, Hsiang-Yuan Hsueh
Executing Linux-based Software of
Electronic Design Automation on
Windows Platform of Microsoft
Hsin-Jung Wang,Zhi-Ming Lin
Simulation and Experiment of Langevin
Type Piezoelectric Ultrasonic Horn on
Micro Tool Motion
Yi-Chang Huang,Guan-Zhang Ding,Bo-Hsuan
Chen,Yu-Jui Huang
P1-14 ID189 P2-14/202 P3-14 ID190 P4-14 ID199
Color Visual Evoked Potential Response
for Myopia Subjects
Kang-Ming Chang,Chung-Yi Tsai,
Sih-Huei Chen
License Plate Recognition Under
NonUniform Illumination
Ren-Chao Shen,Day-Fann Shen
The Wireless Electric Guitar with Digitally
Integrated Effectors
Chun-Tang Chao,Kuo-An Li,
Nopadon Maneetien
An Intelligent Approach for High Material
Removal Rate Machining
Jhy-Cherng Tsai,Shen-Jhy Wang
P4-15 ID201
The position and Correction System of
Laser PSD
Hsueh-Cheng Lin, Mei-Ling Chen
June-Rong Chen, His-Chou Ho, Keng-Hao
Hsu, Din-Goa Huang, Chien-Kuang Kuan,
Wei-Yang Lai, Chang-Sheng Lin, Chia-Jui Lin,
Hung-Ming Luo, Shen-Yaw Perng, Pei-Lun
Sung, Tse-Chuan Tseng, Huai-San Wang,
Meng-Hsiu Wu.
P4-16 ID206
Study of Cutting Parameter Effect on
Spindle Vibration for Tool Breakage
Monitoring in Drilling
Yu-Wei Hsu ,Ming-Chyuan Lu
P4-17 ID207
An Investigation into Electrode Wear in
Layer-Cut EDM Process
Pei-Lun Song, Yo-Ming Chang ,Yao-Yang Tsai
P4-18 ID22
A Cross-Coupled MIMO Fuel Cell System
Design by Using Intelligent Fuzzy-Neural
Controller
Jium-Ming Lin,Cheng-Hung Lin
P4-19 ID24
A Novel Power Effective and Reliable
Wireless Thermal Convection Angular
Accelerometer without any Movable
Parts and Grooved Cavity
Jium-Ming Lin,Cheng-Hung Lin
The Wireless Electric Guitar with DigitallyIntegrated Effector
Chun-Tang Chao, Kuo-An Li, and Nopadon Maneetien
Department of Electrical Engineering, Southern Taiwan University of Science andTechnology,
Tainan 71005, Taiwan
Abstract. The paper presents the design and implementation of a wirelesselectric guitar with digitally integrated effector. Wireless audio modules arefirst employed that electric guitar players no longer to worry to stumble on thestage. Furthermore, in a traditional analog way, electric guitar players may facemany different kinds of effectors, such as distortion, flanger, and reverberation.It’s hard for players to control them by pedals. The digitally integrated effectorsare proposed and implemented by DE2-70 Multimedia Development Board.Finally, a little radio transmitter with multiple keys is equipped on the electricguitar such that the players can easily select the desired audio effect.
Keywords: Wireless Electric Guitar, Effectors, DE2-70.
1 Introduction
Compared to the classical guitar and acoustic guitar, electric guitar with powerfulsound attracts a lot of young music fans[1]. The reason why electric guitar can capturethe tone played is that the magnetic pickup installed in it. The people familiar with theelectric guitar often need to purchase many effects to make the sound effect morevivid. Fig. 1. shows some single electric guitar effects.
Fig. 1. Single electric guitar effects, Delay, Flanger, and Echo (left to right).
Due to the inconvenience of the single effect, there is the advent of integratedeffect, shown in Fig. 2. But it is bulky and must be controlled by pedal or button. Forthe guitar players, it is still not easy for them to do real-time manipulation. In thispaper, we hope to improve these missing by applying modern digital technology.
Fig. 2. Electric guitar analog integrated effects.
Currently, only few researches have been on this topic [2]. On the other hand, therehave been a lot of international researches on guitar effects [3-8]. This paper try to useAltera DE2-70 to finish wireless electric guitar with integrated digital effects.
2 System Description
The FPGA based digital integrated system will be first introduced. Then some topicssuch as wireless audio transmission, radio code transmission, and digitally integratedeffectors will be described in sub-sections.
2.1 FPGA Based Digital Integrated System
Fig. 3. shows the wireless electric guitar system blocks. The Altera DE2-70 board isused to finish to DSP (Digital Signal Procssing) , ADC and DAC functions.
Fig. 3. The wireless electric guitar system blocks.
2.2 Wireless Audio Transmission
To make the electric guitar wireless, we should elimate the wire from guitar tospeaker in the first step. In order to accelerate the realization of the creative concept inthis paper, we directly use a commercially available Waveconn 2.4GHz wirelessstereo headphone and modify it. Fig. 4 shows the 2.4GHz wireless audio transmitter.
Fig. 4. 2.4GHz wireless audio transmitter.
The corresponding and modified 2.4GHz wireless audio receiver is shown in Fig. 5.
Fig. 5. 2.4GHz wireless audio receiver.
Before the receiver in Fig. 5 is connected to the DE2-70, the proposed pre-amplifier and anti-aliasing filter circuit is required. It is worth mentioning that theoperating amplifier design uses single-power[10-11].
Fig. 6. Pre-Amplifier and Anti-aliasing filter circuit.
2.3 Radio Code Transmission
To save development time, the applied radio code transmitter and receiver in Fig. 7are also commercially available.
Fig. 7. Radio code transmitter and receiver (right and left).
2.4 Digitally Integrated Effectors
In the subsection, some effects in the proposed system are discussed.
2.4.1 Flange Effect
Flange effect is like Chorus, the difference is the delay for flange is about 0~35ms,while the delay for chorus is about 35~50ms. To combine both flange and chorus
effect, we try to finish the system difference equation in (1) and its schematic diagramis shown in Fig. 8.
]768[]128[][][ nxnxnxny (1)
Fig. 8. Block diagram of Flange effect.
2.4.2 Reverberation Effect
This effect is similar to echo effect. The filter in (2) can produce "one-fold echo" forthe given input signal. If the sample frequency fs is 16kHz, then the time differencebetween the input and the echo will be about 0.1 second.
]1600[*8.0][][ nxnxny (2)To produce a more realistic “multiple-fold” echo [13], (2) can be modified as (3).
The original FIR type in (2) becomes IIR type in (3).]1600[*8.0][][ nynxny (3)
The resulting Z transfer function is shown in (6), a so-called comb filter.
16008.011
)(
zzH (4)
Fig. 9 shows a frequency gain response of digital comb filter with 8 time unit delay.
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
0.8
1
1.2
1.4
1.6
1.8
2
Frequency in pi units
|X|
Magnitude Part
Fig. 9. Frequency gain response of digital comb filter.
To make the reverberation effect more apparent in software simulation, the echoeffect in (2)-(4) is modified from 0.1second to 0.5 second and the feedback gain in(2)-(4) is modified from 0.8 to 0.6. A 0.6 second short music is used as input andthe resulting output is shown in Fig. 10 in Matlab simulation.
0 0.2 0.4 0.6 0.8 1 1.2 1.4-1.5
-1
-0.5
0
0.5
1Filter output y[n]
Time(sec)
Fig. 10. Short music output by the Reverberation effect.
2.4.3 Distortion Effect
When a sinusoid signal is taken as input of a clipping circuit, a severe distortion willoccur and the resulting output is like a square wave. For auditory effect, it makes theoriginal soft sound become rude. This sound effect can be thought as the mostimportant one for some electric guitar palyers.
Before writing FPGA programs, the Matlab simulation can be applied to verify thedistortion function. Fig. 11(a) shows an input signal with hybrid frequency 100Hz and200Hz, Fig. 11(b) is the resulting output.
Fig. 11. The I/O of Distortion Effect.
Fig. 12. shows the implementation of the wireless electric guitar with digitallyintegrated effector. In the electric guitar body, there are wireless audio transmitter andradio code transmitter. On the other hand, the FPGA DE2-70 is connected to wirelessaudio receiver and radio code receiver.
Fig. 12. The wireless electric guitar with digitally integrated effector.
3 Conclusions
This paper has implemented a wireless electric guitar with digitally integratedeffectors. First, the wireless audio modules are employed to transmit electric guitarmusic. Secondly, the digitally integrated effectors is presented that electric guitarplayers don’t need to face messy wires and many different kinds of effectors, such asdistortion, flanger, and reverberation. The DE2-70 board is applied as the coreprocessor. Finally, to make the electric guitar players select the desired audio effect inan easier and quicker way, a small radio code transmitter with keypads is mounted onthe edge of electric guitar. Based on the proposed prototype system, the integrateddigital effector with more practical effectors will be investigated in the future.
References
1. Tony Bacon, Dave Burrluck, Paul Day: Electric Guitars: The Illustrated Encyclopedia (2000)2. Li-Wei Hsiao: Effect Recognition and Delay Estimation for a Guitar Effector, Master Thesis,
National Taiwan University (2010)3. Kyungjin Byun, Nak-Woong Eum, Hee-Bum Jung, Koang-Hui Jeong, Jae-Eul Koo:
Development of Portable Sound Effector. In: IEEE International Conference on Multimediaand Expo (ICME) , Barcelona (2011)
4. Jon Dattorro: Effect Design—Part 1: Reverberator and Other Filters. J. Audio Eng. Soc.,45(9), 660-684 (1997)
5. Jon Dattorro: Effect Design—Part 2: Delay-Line Modulation and Chorus. J. Audio Eng.Soc., 45(10), 764-788 (1997)
6. Navarun Jagatpal, Fred Rassam, Young Jin Yoon, Elton Chung: Guitar Effects,http://www.scribd.com/doc/60888725/Guitar-Effects (2007)
7. A.R.M. Khan, A.P.Thakare, S.M.Gulhane: FPGA-Based Design of Controller for SoundFetching from Codec Using Altera DE2 Board, International Journal of Scientific &Engineering Research, 1(2), 1-8 (2010)
8. Vincent Verfaille, Udo Zolzer, Daniel Arfib: Adaptive Digital Audio Effects (A-DAFx): ANew Class of Sound Transformations, IEEE Trans. on Audio, Speech, and LanguageProcessing, 14(5), 1817-1831 (2006)
SLOA058 (2000)11. Texas Instruments: Active Low-Pass Filter Design. Application Report, SLOA049A (2000)12. Joyce Van de Vegte: Fundamentals of Digital Signal Processing, Pearson Education, New
Jersey (2002)13. Jyh-Shing Roger Jang: Audio Signal Processing and Recognition. available at the links for
on-line courses at the author's homepage at http://www.cs.nthu.edu.tw/~jang