Details of synthesised sounds


All sounds have a fixed damping value for all modes, expressed here as a Q factor, and the amplitude of each modal contribution is proportional to the inverse of the corresponding natural frequency. Frequencies are expressed in Hz.

Sound A: a string
Frequencies 196 392 588 784 980 1176 1372 1568 1764 1960 2156 2352 2548 2744 2940
Q=500

Sound B: a bar
Frequencies 196 540 1059 1751 2615 3653
Q=200

Sound C: a xylophone
Frequencies 196 776 2091 3757
Q=200

Sound D: a rectangular plate
Frequencies 196 369 611 657 784 1061 1072 1303 1476
Q=500

Sound E: a Caribbean steel pan
Frequencies 196 392 486 785 810 977 1078 1486
Q=500

Sound F: an ideal circular membrane
Frequencies 196 312 419 450 520 572
Q=140

Sound G: a kettledrum
Frequencies 196 295 341 392 440 489
Q=140

Sound H: a tabla
Frequencies 196 392 588 588 784 784 980 980 980
Q=140

The three sounds with different damping levels use the frequencies from sound D, with Q factors 500, 150 and 50.

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