Cadioid Pattern

Cardioid Pattern at Frequency 20000Hz

In the last post that the author presents an abstract of the thesis writer has done with the title of Condenser Microphone Polar Pattern. This time the author will continue the story about it. How and what method is obtained from the study. In this study, the authors use microphone type condenser, with radius1 inc. Because in addition to easy to get, this type of  microphone most used by fellow students as an instrument in conducting research, special for associated with the acoustic. It is expected from the results obtained can help to understand and add information about this type of microphone. Research conducted in the Anechoic chamber at the State University of Yogyakarta acoustics laboratory for about one week .Before obtained sufficient data, and frequency spectrum analysis to determine the amplitude of the signals were captured by a microphone at last obtained such results: 1. The polar pattern of microphone is affected by the frequency response of sound source 2. At low frequencies, shows omnidirectional or circle pattern. 3. In the high frequency of shows cardioid. 

You can see the Cardioid Pattern above.