Table 2 Influence of the number of differential coefficients with the HLDA transformation on phone recognition rates on the converted \(MFCC^*\) vectors of the Test part of FPSD database
36 monophone HMMs with 16 Gaussians per state \(+\) Bigram | Accuracy (%) | Correct (%) |
|---|---|---|
Exp 1 : \(39 \ MFCC^*\) coefficients | 63.48 | 68.58 |
Exp 2 : \(52 \ MFCC^*\) coefficients | 61.78 | 67.36 |
Exp 3 : \(HLDA \ (52\rightarrow 39)\) | 65.29 | 69.85 |