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thank you for your reply！but I still have the question why doing further untie, re-estimate, recluster and herest
HMMs can get the better re-estimation accuracy？ Have the inevitable reasons in theory？ or can you explain in theory simply？ > Date: Wed, 6 Jun 2012 09:31:50 +0800 > From: yangwang84@xxxxxxxxx > Subject: [hts-users:03326] Re: [hts-users:03323] Questions of the untied stage in the sd training.pl？ > To: hts-users@xxxxxxxxxxxxxxx > > Hi, ArthurLeo, > > You asked about "{cluster, herest}, {untie, herest}, {recluster, > herest}". When we further untie, re-estimate, recluster and herest > HMMs, we usually get better re-estimation accuracy than just cluster, > herest. You may verify that the corresponding HMM definition files are > a little different. Through my informal listening test, I found the > synthesi zed speech is indeed a little better. > > YangWang > > > 2012/6/5 ArthurLeo <bin007.zhao@xxxxxxxxxxx>: > > Hi all， > > When I read the SD training.pl(hts2.2 version)，I found that there is a > > untied stage, I want to know why do this stage？ why not use the before stage > > result cluster.mmf(after the herest) as the final model? why do the untied > > stage then clustered, next using herest result as the final model? what is > > the function of > > adding the untied stage? what is the benefit? Can someone give me an > > answer? Thank you in advance! > |