? Nimajin Software Consulting Projects 2006
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Projects

2013

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2008

2007

2006

The projects are listed in chronological order, most recent first. Each project description includes the start and end dates, the effort (in man-months) and the technologies used. Clients include AST Technologies Labs Inc., ATRA Vision Inc., Microtronix Systems Ltd., Listen Inc., and The National Centre for Audiology.

Wireshark Instruction
Dec 2006 (0.125 m/m)
Wireshark protocol analyzer (was Ethereal)
Instructed staff on how to use Wireshark to capture and analyze VoIP network traffic.

SIP Registrar Installation
Nov 2006 (0.125 m/m)
SER (SIP Express Router), PartySIP, Interaction SIP Proxy
Installed and configured several SIP server software packages on site for testing purposes.

Automated Test System Software Analysis and Design
Nov 2006 (0.25 m/m)
National Instruments LabVIEW and LabWindows/CVI, C, COM, MS Word, Visio
Analyzed automated test system software developed by a customer of the client and designed a replacement based on COM components and LabVIEW.

SIP Call failure Analysis
Sept 2006 (0.125 m/m)
Found reasons for call setup failure from trace log and suggested changes to make calls successful.

Paintball Target Shooting Booth Game Debugging and Repairs
Sept 2006 (0.125 m/m)
Windows XP, VS 8.0, .NET 2.0, C#, DirectX
Repaired software bugs causing unhandled exceptions and scoring errors.

VoIP Codec Subtype Signaling Additions
Jul 2006 (0.375 m/m)
Windows XP, VS 8.0, C++, OPAL, SIP, SDP, H.323, G.722.1, Speex
Revised FMTP parsing to enable negotiation of various supported bit rates.

SIP G.722 Rate Acceptance Modification
Jul 2006 (0.125 m/m)
Windows XP, VS 8.0, C++, OPAL, SIP, SDP, G.722
Revised codec matching system to accept G.722 rate of 8000 or 16000 in SDP.

SIP Audio Delay Analysis
Jun 2006 (0.125 m/m)
Windows XP, VS 8.0, C++, OPAL, SIP
Tested software on site to determine reasons for audio streaming delay problems.

Paintball Target Shooting Booth Game Design & Development
May 2006 – Jun 2006 (0.75 m/m)
Windows XP, VS 8.0, .NET 2.0, C#, DirectX
In this game the software randomly lights up LED targets on an 8x12 foot panel and the player shoots the targets with their paintball gun. When the target is hit, the panel sends a message to the software, which updates the timing and score on the PC screen. Also on the PC screen, the software continuously plays videos for advertising and entertainment. This new application was collaboratively designed with the client. Nimajin developed the game controller software, including a protocol to exchange target lighting and hit detection messages with the target panel via serial port, the target lighting & scoring system, the video playlist and the user interface, which was recoded in DirectX when it was discovered that Windows Forms in .NET 2.0 could not display data panels translucently over video.

Wireless Headset System Development
Feb 2006 – Apr 2006 (1.25 m/m)
PocketPC, C#, Windows Compact Framework, .NET 2.0, VS 8.0
ARM embedded µCLinux, C & C++, SUSE Linux, gcc
The wireless headset is a set of headphones with a boom microphone, attached to a battery-powered embedded Linux computer with a Wi-Fi card. The system transfers three channels of 20,500 samples per second uncompressed audio over the Wi-Fi link between this and a PDA, where a client application can process the microphone input and send output to the headphones. From design done Jan 2006.
? Developed embedded Linux device driver for custom audio hardware using C language and Linux server software for real-time audio transfer of audio over WiFi in C++ (Both developed using cross platform tools on SUSE Linux).
? Developed .NET assembly as API to transfer audio between client application and WiFi.
? Wrote client application programming manual.
? Developed demonstration client PDA application in C#.

Bluetooth Headset Control and Audio Transfer Component Revisions
Feb 2006 (0.375 m/m)
Windows XP, VS 8.0, COM, C++, ATL, WTL, DirectSound, WidComm Bluetooth library
This Windows COM component automates control of Bluetooth headsets and transfers audio between a headset and the analysis software of the larger system.
? Developed and tested the control capabilities.
? Updated DirectSound audio streaming (see July 2005) to DirectX 9.0
? Revised the device connection procedures and status reporting user interface.
? Wrote the API reference document.

Wireless Headset System Design
Jan 2006 (1.0 m/m)
Windows XP, PocketPC, C#, Windows Compact Framework, .NET 2.0,
ARM embedded µCLinux, C & C++, SUSE Linux
In the request, the wireless headset is to be a set of headphones with a boom microphone, attached to a battery-powered embedded computer with a Wi-Fi card. The system is to transfer high-quality uncompressed audio over the Wi-Fi link between this and a PDA, where a client application can process the microphone input and send output to the headphones.
? Architected real-time audio transfer software, design control & audio transfer protocols.
? Developed tests to measure the transfer capacity of the devices and the WiFi link.


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