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TELEMATIC DRUM CIRCLE

|   What it is   |   What you experience   |   How it works   |   FAQ   |   Timeline & Budget   |

DATA FLOW

 

Click here to see larger image of Data Flow above.

 

TECHNICAL INFO

 

The overall design of Telematic Drum Circle system is one that requires the use of computer programming, pneumatics and many fields of engineering including software, electrical, and mechanical.  The system has two main multimedia components: an interactive website with a musical performance interface as well as fifteen robotic drum machines that can be controlled through Internet and play on percussion instruments.  

 

First, an online participant reaches the project website www.TelematicDrumCircle.net via a fixed IP address from a broadband wireless service provider.  The participant logs in to the live musical interface with user name, location (city) and email address.  If more than fifteen people are online at the same time, his/her user name will be under the waiting list which is posted at the corner of the same page where other participants are playing instruments. (Processing of user participation is on a first-come first-serve basis.)  Then, the user chooses one of the fifteen instruments s/he wants to play.  Finally, the participant can remotely play the percussion instrument placed at the installation space, while s/he watches the robotic drum ensemble broadcasted with live streaming video through the website.  

 

The data of the online participation is transferred to a web server in real-time and is converted to binary numbers which allow the robots to play instruments.  In the installation space where the robotic instruments are displayed, the data visualization of current participation is projected on the front wall.  While the instruments are being played, there are one omni directional microphone and two 6mm DV camcorders (one for entire scene and the other one for detail shot) which record the actual percussion ensemble in every minute.  The sound file recorded through the microphone is automatically converted to SMAF(mmf) file format for mobile service in the archive section later.  The video images taken by the DV camcorders are edited automatically by video editing algorithm.  All the audio/visual data from these algorithms is stored in the A/V Storage (1 terabyte), and is returned to the web server.

 

The web server, which is a Linux/Apache box behind a firewall, receives the data from the A/V Storage through the 100 Mbps network connection offered by the wireless provider.  At the same time, the video data generated is broadcasted through QuickTime Broadcaster in the website.  As soon as the live video is shown to the online participants, an archive webpage is generated with one downloadable video and sound file (for mobile phone – ring tone service) in every minute.  An e-mail containing the link to the web page is sent to every participant.  The participant and visitor of the website can use the archive page to e-mail a sound file to his/her friends and to encourage them to visit the project website and create a collaborative piece with the networked percussion robots.

 

 

01.  Online Musical Interface for Long Distance Instruments

02.  Constructing and Managing Apache Server

03.  Software Development for Communication between WWW and Actuators

04.  Data Analysis and Visualization

05.  Electrical Engineering (I/O Devices and Programming)

06.  RF Communication between Electronic Machines

 

 07.  Mechanical Engineering & Pneumatics

 08.  Sound/Video Recording

 09.  Video Editing Algorithm with 2 Web Cams

 10.  Video Streaming via Internet

 11.  Data Archiving

 12.  Creating and Converting Sound File for Mobile Phone

 

SIDE VIEW

 

 

MATERIALS

 

ActiveWire USB Device

ActiveWire Inc.

In-line valve H180-4E1

TECO Pneumatic

Double Acting Cylinder

BIMBA

Wireless Communication Module

(RF Link - 2000,000bps)

Laipac Technologies

Micro-controllers

(PIC16F877A, PIC16F84A, etc.)

MICROCHIP

Stepper Motor &

Custom-made Controller

Niveus A/V Storage Server:

1 Terabyte

Industrial Air Compressor

& Air Hose with Fitting

(for mechanical actuators)

Condenser Microphone

(Omni Directional)

Hosa Technology Inc.

Hi-Res. 1394 Webcams

Apple Computer Inc.

Max/MSP/Jitter

Programming Environment

Cycling '74

Video Projector (XGA, 2300 ANSI)

Quad 2.5GB Power Mac G5

Monostable Multivibrator

(CD4047BC) & 2N7000

Fairchild Semiconductor

All Prototyping Materials

 

Structural Aluminum Extrusions

TSLOTS

Miscellaneous items

Jameco Electronics

 

TELEMATIC DRUM CIRCLE

|   What it is   |   What you experience   |   How it works   |   FAQ   |   Timeline & Budget   |