Han-Gil Moon

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Earbuds have gained immense popularity with mobile multimedia systems recently owing to their convenience and easy low cost design. Unfortunately their design is subject to severe constraints especially affecting their low frequency signal performance. Bass signal performance contributes significantly to the user perceived sound quality and a good bass(More)
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(More)
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