Water acts as a great essential life source. It is a well-known fact that life began with water and the water cleanliness is a very important aspect of life to survive on earth. But, the byproducts of science laid their monstrous footsteps as pollutants. Most of these pollutants are toxic and are affecting adversely the water resources (wells, lakes, rivers, and sea), living organisms in the water, and all dependent organisms. Also, due to the carelessness in the use & maintenance of water bodies, millions of tons of plastics and other floating wastes are dumped into the water daily. Most of the time, the water bodies are cleaned manually with human labor which requires a lot of time and cost. To address this, the proposed work in this article aims at the design and development of an Arduino-Uno controlled surface water trash cleaning semi-autonomous boat with a robotic arm. This work is simulated using the open-source simulation tool TINKERCAD. Simulation results have shown that the proposed work would be an alternative for surface water trash collection and maintenance of cleanliness of the water with low cost and minimum human effort.
A novel approach to build a speech-to-speech conversion (STSC) system for individuals with speech impairment dysarthria is described. STSC system takes impaired speech having inherent disturbance as input and produces a synthesized output speech with good pronunciation and noise free utterance. The STSC system involves two stages, namely automatic speech recognition (ASR) and automatic speech synthesis. ASR transforms speech into text, while automatic speech synthesis (or text-to-speech [TTS]) performs the reverse task. At present, the recognition system is developed for a small vocabulary of 50 words and the accuracy of 94% is achieved for normal speakers and 88% for speakers with dysarthria. The output speech of TTS system has achieved a MOS value of 4.5 out of 5 as obtained by averaging the response of 20 listeners. This method of STSC would be an augmentative and alternative communication aid for speakers with dysarthria.
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