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Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2008;19(2): 101-106. |
| 스팩트럼과 스팩트로그램의 이해 |
| 진성민 |
| 성균관대학교 의과대학 강북삼성병원 이비인후과학교실 |
| Introduction to the Spectrum and Spectrogram |
| Sung-Min Jin |
| Department of Otolaryngology, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University |
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| ABSTRACT |
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The speech signal has been put into a form suitable for storage and analysis by computer, several different operation can be performed. Filtering, sampling and quantization are the basic operation in digiting a speech signal. The waveform can be displayed, measured and even edited, and spectra can be computed using methods such as the Fast Fourier Transform (FFT), Linear predictive Coding (LPC), Cepstrum and filtering. The digitized signal also can be used to generate spectrograms. The spectrograph provide major advantages to the study of speech. So, author introduces the basic techniques for the acoustic recording, digital signal processing and the principles of spectrum and spectrogram. |
| KEY WORDS：
Spectrum;Spectrogram; |
| 중심 단어：
스팩트럼;스팩트로그램; |
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