COMD 5070 Spectra - FFT, LPC
Two Types of Spectrum - Types Discussed in Class:
️ FFT and LPC
Fast Fourier Transform (FFT) - What FFT Stands For:
️ Fast Fourier Transform - What an FFT Spectrum Shows Us:
️ Shows the range of harmonics that are present in sound; each peak shows...
✔️ Shows the range of harmonics that are present in sound; each peak shows a harmonic.
- This representation provides information about the frequency components of a sound signal.
- What FFT Does Not Show Well:
✔️ Formants.
- It is less effective in representing the overall shape of the frequency response of the vocal tract, which
is important for understanding speech sounds.
- Utility of FFT Display:
✔️ Useful for displaying features of the sound source.
- Primarily helps in analyzing harmonic structures, which relate to the source of sound production.
Linear Predictive Coding (LPC)
- What LPC Stands For:
✔️ Linear Predictive Coding
- What the LPC Shows Us:
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