[hts-users:00948] Re: Questions about certain concepts

["Heiga ZEN (Byung Ha CHUN)" <zen@xxxxxxxxxxxxxxx>]

marc sobhy wrote (2007/11/19 17:04):

> 1. i can't imagine how the calculation of global means and variance can 
> be done.more explanation plz

Just calculates means and variances of all frames in the training data.

> 2. how the HERest can determine the phoneme boundaries (this automatic 
> segmentation ) which algorithm can do this and how it do?

In HERest, the Forward-Backward algorithm is used to calculate occupancy probabilities.
See HTKBook section 1.4 for details.

Regards,

Heiga ZEN (Byung Ha CHUN)

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Heiga ZEN     (in Japanese pronunciation)
Byung Ha CHUN (in Korean pronunciation)

Department of Computer Science and Engineering
Nagoya Institute of Technology
Gokiso-cho, Showa-ku, Nagoya 466-8555 Japan

http://www.sp.nitech.ac.jp/~zen
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