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Teaching large classroom is always a very challenging task for educators. This is due to many difficulties imposed on the teaching-learning process. Digital signal processing (DSP) is now pervasive as it is used in everything from digital photo cameras, MP3 players to automobiles. However many students see DSP as abstract mathematics. This is because of the gap between understanding the mathematical formalism of each concept and being able to make sense of them in practice. Getting students actively participate in learning process and motivating them to fill these gaps is a difficult task [3]. To address this difficulty a "recipe" is suggested i.e. "visualizing" the DSP theory with practical applications like speech processing, image processing and so on will help the students in learning better. Sensory stimulation theory of learning says that majority of knowledge held by adults is through seeing (75%) while hearing is the next (13%) and if multi-senses are stimulated; greater learning because of synergy takes place. This theory encouraged us to develop undergraduate level course activity with the applications of audio processing. In this way students are able to see the results of audio processing in MATLAB plots and analyze the results by varying few design parameters. Thus DSP related theoretical concepts will be studied not just as mathematical abstracts but as a useful tools having sense in real world.

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In this paper, we propose an experiential learning module for the course Signals and Systems (SNS). This course is designed in the second year of the Electronics and Communication Engineering stream and challenging course as it demands a higher level of cognition skills. Experiential learning is a series of activities that allow students to be actively involved in ensuring learning. The experiential learning module enhances the problemsolving skills towards reaching higher levels of cognition, moving from the lower levels of remembering, understanding. Typically, the conventional modes are teacher-centric, visual learners and sequential learners find challenges in stimulating their cognition skills. Towards this, we design an experiential learning framework with two techniques: Concept inventory and SNS with Python to facilitate sequential learners and visual learners respectively. The challenges associated with the deployment of our framework are time and resource management. The proposed framework facilitates achieving a higher level of cognitive skills; also the introduction of the simulating tool ensures the conceptual learning of the course beyond classroom learning.