1. SUBJECTIVE ATTRIBUTES OF SOUND Acoustics of Concert Halls and Rooms Science of Sound, Chapters 5,6,7 Loudness, Timbre

2. FOUR ATTRIBUTES USED TO DESCRIBE A SOUND: Loudness Pitch Timbre Duration EACH OF THESE DEPENDS ON ONE OR MORE PHYSICAL PARAMETERS THAT CAN BE MEASURED: Sound pressure Frequency Spectrum Duration (measured) Envelope Relating the SUBJECTIVE QUALITIES to the PHYSICAL PARAMETERS that we can MEASURE OBJECTIVELY Is an important problem in PSYCHOACOUSTICS

3. DEPENDENCE OF SUBJECTIVE QUALITIES OF SOUND ON PHYSICAL PARAMETERS

4. LOUDNESS LEVEL Contours of equal loudness are labeled phons At 1000 Hz, Loudness Level = L p

5. SOUND LEVEL METER

6. PLOT YOUR OWN FREQUENCY RESPONSE ASSIGNMENT: Plot your own frequency response curves by using www.phys.unsw.edu.au/~jw/hearing.html

7. HOW DOES LOUDNESS DEPEND ON FREQUENCY?

9. LOUDNESS SCALING

10. LOUDNESS OF COMPLEX TONES: CRITICAL BANDS Loudness depends mainly on SOUND PRESSURE. but it also depends on FREQUENCY, SPECTRUM and DURATION

12. DEPENDENCE OF LOUDNESS ON BANDWIDTH

13. LOUDNESS OF COMBINED SOUNDS

14. RANGE OF FREQUENCY AND INTENSITY OF THE EAR

15. MUSICAL DYNAMICS AND LOUDNESS

17. HOW DOES LOUDNESS DEPEND ON PARTIAL MASKING?

18. HOW DOES LOUDNESS DEPEND ON DURATION?

23. EFFECT OF TONE ENVELOPE ON TIMBRE

24. EFFECT OF ENVELOPE ON TIMBRE PIANO NOTES PLAYED FORWARD AND BACKWARD