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Enhanced Bass Reinforcement Algorithm for Small-Sized Transducer

Nowadays, it is very popular that mobile devices such as cell phones or mp3 players are using small-sized speaker systems to supply sound event to users. The reason why they are using small-sized transducers is mainly restrictions due to the design and the size of the devices. Unfortunately, their design and size restrain the transducers from high quality of low frequency performance. To breakthrough this physical barrier of poor low frequency generation, well-know psycho-acoustical background, “missing fundamental illusion” is exploited. In this paper, the method of enhancing bass perception using virtual pitch is presented. With the presented method, listeners can feel the deep bass with fewer artifacts.

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