[hts-users:02796] average log prob per frame higher than zero...

[Joelle Tilmanne <joelle.tilmanne@xxxxxxxxxxx>]

Dear HTS-users,

The "average log prob per frame" is often used as an indicator of how well the HMM matches the training sequence. But I did not found an explanation on how that number was calculated and I can not explain why a logarithmic probability can have values higher than 0 (or why a probability can be higher than 1). In my case and in the literature, I find average log prob per frame = several hundreds and more ...

Does somebody have an explanation?

Thank you very much for your help,


Joelle