User: Alan
Date: 10/5/2008 11:14 pm
Views: 8759
Rating: 11

I had problem with

ERROR [+6510]  LOpen: Unable to open label file

I followd through the tutorial and also going through the htk book, but no where during the tutorial has it created any .lab files :S (wasnt it suppose to create mfc at HLEd step?) i tried reading the link u gave to another person with the same question, but i dnt get it, i did the HLEd step corret with .mfc files made and the path correct, but now its just telling me i cannot open label files which was never mentioned b4 :S


so lost...

Re: htk label files (mlf files)
User: kmaclean
Date: 10/7/2008 9:37 pm
Views: 5162
Rating: 10

Hi Alan,

>ERROR [+6510]  LOpen: Unable to open label file

HTK is looking for the label file - which is the list of words in your text (in the order they appear in your text).

The label file is contained in your words.mlf file (or phones.mlf).  Usually when creating acoustic models, you have many transcribed audio files.  So rather than have many text label files to keep track of, you put them all in a large single text file called an mlf file (mlf=multiple label file).  

HTK assumes that the name of your label file is the same as your wav file - with the ".wav" suffix changed to ".lab".  So make sure the prefix of your label file matches that of your audio file.


Re: htk label files (mlf files)
User: soocki
Date: 10/24/2019 8:03 am
Views: 633
Rating: 1

That got me thinking and I was able to solve a similar issue. I had named the files with .wav extension, so after the convertion the pointers in 'phonesX.mlf' file(s) were wrongly stored as 'file_name.wav.lab' (note the 'double' extension. HERest tool was not able to correctly associate the '.lab' and '.mlf' files. The solution was to get rid of '.wav' extension inside of the 'phonesX.mlf' files, so the line 'file_name.wav.lab' becomes 'file_name.lab'.