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This paper describes a spreadsheet platform for learning signal processing called SignalSheets. SignalSheets consists of sections, each represents a signal transformation from input to output. In this paper, we use SignalSheets to explain how to estimate spectrum of an input signal using fast Fourier transform (FFT) of Appoints. It starts with puting the input signal into an input section. If the...
The objective of this research is to develop a rapid prototyping of DSP system, allowing design and implementation of real-time DSP algorithms on a single-chip system. The research and development method includes specifications, analysis, design, architecture, implementation, testing, and integration. We use a product-service-value system (PSV-S) approach to develop a computational heavy speech compression...
The objective of this research is to study the performance of a high quality speech compression in real-time on a single-chip system. Based on voice over Internet protocol (VoIP) requirements, we have decided to implement a high quality speech coding (with signal-to-noise ratio, SNR of more than 10 dB), at a low bit rate of 8 kbit/s or less. The coder must have delay not more than 100 ms. The development...
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