Table A1.
A summary of each Speech Acoustic Analysis Software Package's default settings in relation to permissible parameter manipulations, as well as the sequential order in which manipulations were made as denoted by column number: 1 = first parameter manipulated; 2 = second, and 3 = last. CSL = Computerized Speech Laboratory.
| Manipulation sequence | 1 |
2 |
3 |
||
|---|---|---|---|---|---|
| Downsampling and other | # of coefficients |
Smoothing |
|||
| Default | Manipulation | Default | Manipulation | ||
| CSL | Must manually downsample to 16 kHz. | 12 | Yes (12–20) | No | Yes |
| Must add voice period marks. | |||||
| Praat | Automatic downsampling to 10 kHz. | 10* | No | N/A | No |
| * Indirectly changed # of coefficients to 8 by changing expected number of formants from default of 5 to 4 formants. | |||||
| TF32 | No downsampling. Number of coefficients is adjusted automatically to the sampling rate. | 52 | Yes (48–56) | No | Yes |
| WaveSurfer | Automatic downsampling to 10 kHz. | 12 | Yes (12–20) | Yes | No |