# Title Team Members TA Documents Sponsor
44 Electronic Sound Generator
Jeremy Hutnak
Kedong Shao
Parikshit Kapadia
Kexin Hui final_paper0.pdf
Teammates: Kedong Shao (kshao5)
Jeremy Hutnak (hutnak2)
Parikshit Kapadia (pkapadi2)
We discussed it and we decided that we would like to build a relatively inexpensive, they can range from $200 to $4000, analog synthesizer that is simple to use for those that would like to make interesting effects with their music. Analog synthesizers can become very large and complex in how to work with them to create the sounds wanted. We would like to create one that would be more intuitive on how to use it as well by using a simple manual switch and dial control scheme.
We would need to build a power supply for the system, which we are thinking of using battery power to allow it to be easily transported and used, but we may have to build a power convert to use the standard wall power. We would need to design and build two oscillator circuits one voltage controlled oscillator and a low frequency oscillator. We will need one low pass filter circuit and a envelope generator circuit to modulate and filter the signal. We will need to build two amplifier circuits, one voltage controlled amplifier to boost the signals amplitude and another for the audio output. For the audio output we would also need to allow for an external amplifier,typical amplifier used for musical instruments, to be plugged in and bypass the built in output. We will also need to design and build a white noise generator to produce the white noise sound used to make sounds like wind.
The bulk of the work on the project will be designing, building, and interconnecting the circuits all together. We will also have to layout a PCB design and make some kind of container to hold the analog synthesizer.
Some challenges we will face are figuring out how to map voltages to different notes as well as making sure the circuits will all work together properly. Some of the group also has no experience working with music or analog signal processing, so we will have to work together to research and understand how each circuit will work and how they will effect each other to produce different effects.

Wireless IntraNetwork

Daniel Gardner, Jeeth Suresh

Wireless IntraNetwork

Featured Project

There is a drastic lack of networking infrastructure in unstable or remote areas, where businesses don’t think they can reliably recoup the large initial cost of construction. Our goal is to bring the internet to these areas. We will use a network of extremely affordable (<$20, made possible by IoT technology) solar-powered nodes that communicate via Wi-Fi with one another and personal devices, donated through organizations such as OLPC, creating an intranet. Each node covers an area approximately 600-800ft in every direction with 4MB/s access and 16GB of cached data, saving valuable bandwidth. Internal communication applications will be provided, minimizing expensive and slow global internet connections. Several solutions exist, but all have failed due to costs of over $200/node or the lack of networking capability.

To connect to the internet at large, a more powerful “server” may be added. This server hooks into the network like other nodes, but contains a cellular connection to connect to the global internet. Any device on the network will be able to access the web via the server’s connection, effectively spreading the cost of a single cellular data plan (which is too expensive for individuals in rural areas). The server also contains a continually-updated several-terabyte cache of educational data and programs, such as Wikipedia and Project Gutenberg. This data gives students and educators high-speed access to resources. Working in harmony, these two components foster economic growth and education, while significantly reducing the costs of adding future infrastructure.