Table 1.
Shape selections for timbre: the colored and grayscale shapes selected for each sound are shown in this table.
| Instrument | Fundamental frequency F0 (Hz) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100 | 150 | 200 | 250 | No F0 | |||||||||||
| Shape | CMC (%) | CMG (%) | Shape | CMC (%) | CMG (%) | Shape | CMC (%) | CMG (%) | Shape | CMC (%) | CMG (%) | Shape | CMC (%) | CMG (%) | |
| Cello |  |
50 | 52 | |
77 | 63 |  |
63 | 58 | |
61 | 62 | – | – | – |
| Guitar | |
64 | 61 | |
76 | 73 | |
55 | 51 | |
55 | 53 | – | – | – |
| Piano | |
61 | 79 | |
73 | 73 | |
71 | 71 | |
50 | 51 | – | – | – |
| Marimba | |
56 | 53 | |
82 | 71 | |
81 | 76 | |
75 | 71 | – | – | – |
| Sax | |
59 | 59 | |
72 | 66 | |
69 | 64 | |
62 | 70 | – | – | – |
| Triangle | – | – | – | – | – | – | – | – | – | – | – | – |  |
89 | 94 |
| Carsh cymbals | – | – | – | – | – | – | – | – | – | – | – | – | |
92 | 85 |
| Gong | – | – | – | – | – | – | – | – | – | – | – | – | |
73 | 87 |
CMC and CMG are two confidence measures which show what percentages of subjects agreed on the selected shape in cases of colored and gray scale shapes. Symbols , , and represent shapes S1, S2, and S3 in Figure 2. Shape selection strategy has changed with timbre (see statistics in text). Chance level is 33%. Sounds of the first five instruments were pre-processed by a Hanning window.