Table 3 Influence of the number of differential coefficients with the HLDA transformation on phone recognition rates on the Test part of the original FPSD database (without vector conversion)
| 36 monophone HMMs with 16 Gaussians per state \(+\) Bigram | Accuracy (%) | Correct (%) |
|---|---|---|
| Exp 1 : \(39 \ MFCC\) coefficients | 61.89 | 67.62 |
| Exp 2 : \(52 \ MFCC\) coefficients | 58.49 | 65.29 |
| Exp 3 : \(HLDA \ (52\rightarrow 39)\) | 63.59 | 69.43 |