From: Dysphagia and its effects on swallowing sounds and vibrations in adults
 | Non-stroke | Stroke | ||||
---|---|---|---|---|---|---|
A–P | S–I | Sounds | A–P | S–I | Sounds | |
Peak frequency (Hz) | 11.68 ± 27.98 | 11.74 ± 14.58 | 304.0 ± 491.0 | 34.54 ± 97.57 | 14.94 ± 54.28 | 257.0 ± 433.4 |
Center frequency (Hz) | 73.15 ± 113.9 | 54.60 ± 84.64 | 801.9 ± 682.6 | 199.3 ± 291.0 | 90.75 ± 184.6 | 895.9 ± 899.3 |
Bandwidth (Hz) | 134.75 ± 211.4 | 92.45 ± 106.8 | 552.1 ± 562.0 | 344.2 ± 498.2 | 136.4 ± 265.6 | 697.3 ± 704.4 |
Wavelet entropy | 0.905 ± 0.703 | 1.063 ± 0.707 | 1.185 ± 0.725 | 1.204 ± 0.870 | 1.171 ± 0.772 | 1.027 ± 0.776 |