1. Speech Pathologist
#10

2. Wave Analysis
Naturally occurring sounds are made up of waves of different frequencies.
The lowest of these is the fundamental frequency or F0.

3. Wave Analysis
A wave at a certain frequency also generates waves at multiples called harmonics.
Components of a line spectrum are always harmonics of the F0.

4. Wave Analysis In the next slide:
What do the horizontal and vertical axis represent in the wave spectrum?
What is the F0?
How is the complex wave calculated?

5. Wave Analysis

6. Wave Analysis
A line spectrum shows amplitude and frequency of waves but not phase.

7. Wave Analysis
Humans don't perceive phase differences.

8. Wave Analysis
What is a Fourier analysis?

9. Wave Analysis
What is a Fourier analysis?

10. Wave Analysis Fourier analysis of waves with same frequency.
What would line spectrum of sine wave be?

11. Real time Fourier of orchestra
Harmonics
Sine waves and cycles
Pentatonic scale

12. Wave Analysis
Fourier analysis and aperiodic waves

13. Wave Analysis The line spectrum of an aperiodic wave
1 is composed of an infinite number of wave
2 is represented by a spectrum curve
3 has waves that vary in amplitude

14. Wave Analysis
Spectral curves of noise

15. Wave Analysis
What are the differences in frequencies in [ʃ] and [s]? What would the line spectra look like?

16. Wave Analysis
Spectral curves of fricatives

17. Wave Analysis
Spectral curves of fricatives
Both > Bof