Pina is placed at the most outer part of our body. It is the part of our body that first receives the sound its formation is complex. It is one of its characteristics. They are placed on either side of our head. They are facing the front. Many different curves make up the ears and they are they are three dimensional. This paper shows how the formula was developed based on the spherical coordinate system and directional band. In the spherical coordinate system, it doesn't matter how far the

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... is coming from. The result will change based on the direction of the sound. This