I have gone through the tutorial in the HTK Book chapter 15 and have created a couple of language models. The one I am using is a 5k trigram model created using

LBuild -T 1 -c 3 1 -n 3 -l lm_5k.2gram lm_5k/5k.wmap lm_5k.3gram holmes.1/data.* lm_5k/data.*

I then converted this into a Julius binary file using mkbingram. No errors.

I am now trying to get them working with Julius. Here's where I am up to annd having problems:

I downloaded the latest nightly acoustic model from VoxForge and set my test.jconf to use:

-d lm/lm_5k.bingram 
-v acoustic_model_files/dict
-h acoustic_model_files/hmmdefs
-hlist acoustic_model_files/tiedlist

I run Julius and get the following errors:

...

Error: ngram_lookup: "ZOOELOGY" not exist in N-gram

Error: ngram_lookup: "ZUE" not exist in N-gram

Error: ngram_lookup: "ZURICH" not exist in N-gram

Error: --- Failed to map 10425 words in dictionary to N-gram

Error: --- Specify the word to which those words are mapped with "-mapunk" (default: "<unk>" or "<UNK>"

ERROR: m_fusion: failed to init

I feel as though I am so close to acheiving an actual positive result here but can't figure this one out on my own. Please help :)

--- (Edited on 5/21/2016 4:22 am [GMT-0500] by Visitor) ---

[This was my post, just forgot to log in]

--- (Edited on 5/21/2016 4:24 am [GMT-0500] by wildcard) ---

Ok so you have found out something about LMs.

Julius is having a problem matching your audio to the language model.

In an earlier thread you were offered some advice about going back to something that works and using that as a launching point, a suggestion which it seems has yet to sink in. The point is that if you pull up a successful working grammar that Julius is happy with, then you know that the audio and language sides are balanced. How would you turn a grammar into a LM?

--- (Edited on 2016-05-22 6:28 am [GMT-0400] by colbec) ---

Right, OK. I'm assuming that the advise to go back to something that worked was that I should go back through the tutorial on VoxForge?

If not, that is the only thing I have got working. 

The tutorial created a grammar file and then the acoustic model. You think I now need to create a new acoustic model? If so should I use the text from the prompts files I used to create the language model?

I know these questions may sound like I'm being an idiot but I am finding it hard finding resources that I can understand from an entry level. All I have at the moment is to ask stupid questions and hope you don't lose patience! So I am very appreciative of you help.

--- (Edited on 5/22/2016 6:16 am [GMT-0500] by wildcard) ---