Creating a speech recognition device using FPGA technology

PROJECT: Speech Recognition Device Using FPGA Technology

I have decided on developing a device which would have a speech interface. I will be using my knowledge on FPGAs so far and my knowledge in digital signal processing to develop this real-time speech recognition device that would interact with the surrounding using analog (audio) inputs from a user. I would still be using Verilog Hardware Description Language to implement my design with the aid of block diagrams showing dataflow and control flow.

EQUIPMENTS

Development Kit: Altera DE2 – Cyclone II FPGA

Software: ModelSim-Altera Edition, Quartus II, MATLAB and maybe NIOS II.

The project would include the following implementations

·         Design approach

·         A/D Conversion

·         Word detector

·         FFT

·         Memory Management

·         Distance Computation

For the design, I would be using Quartus II to create Verilog blocks as well as CAD. I would also need datapath and intermediate controllers. The Development kit contains the Cyclone II FPGA, CODEC and Analog-to-digital converter integrated. I would be using three memory modules which include FLASH, SDRAM and SRAM. With the help of Quartus II, I would design a 1024-points FFT module and a distance computation module using Verilog.

I have learned to work with Quartus II over the past weeks and would currently proceed in understanding the background theories behind the design, Analog-to-digital converter, FFT and distance computation modules, and memory management. I would spend the next 2 weeks researching into these areas to help develop a better understanding for my hardware implementation