Reply To: Subpar success rate of speech recognition

[rl1987]

Our application is intended for users who live in Ireland and speak the corresponding dialect of English. We want OpenEars to be able to recognize words spoken with this kind of dialect. Some of the testers belong to this set of intended users. We, the developers, are from East Europe, but we can speak English fairly well, although we do have our accents.

An Irish female tester reported that accuracy was as low as 3% when she was holding iPhone as one normally would. When she increased the distance between herself and device, the accuracy got better.

I have uncommented [OpenEarsLogging startOpenEarsLogging]; and tried generating the language model again.

When OpenEars generates the model, I am getting a fair amount of warnings like this:

2012-10-22 16:41:09.436 OpenEarsSampleApp[84775:11f03] The word LOCKSMITHS was not found in the dictionary /Users/rimantasl/Library/Application Support/iPhone Simulator/6.0/Applications/9309879C-9CFD-48C1-8A12-305A6EC7FDA5/OpenEarsSampleApp.app/cmu07a.dic.
2012-10-22 16:41:09.437 OpenEarsSampleApp[84775:11f03] Now using the fallback method to look up the word LOCKSMITHS
2012-10-22 16:41:09.438 OpenEarsSampleApp[84775:11f03] Using convertGraphemes for the word or phrase LOCKSMITHS which doesn't appear in the dictionary
2012-10-22 16:41:09.440 OpenEarsSampleApp[84775:11f03] If this is happening more frequently than you would expect, the most likely cause for it is since you are using the default phonetic lookup dictionary is that your words are not in English or aren't dictionary words, or that you are submitting the words in lowercase when they need to be entirely written in uppercase.
2012-10-22 16:41:09.451 OpenEarsSampleApp[84775:11f03] The word LONGFORD was not found in the dictionary /Users/rimantasl/Library/Application Support/iPhone Simulator/6.0/Applications/9309879C-9CFD-48C1-8A12-305A6EC7FDA5/OpenEarsSampleApp.app/cmu07a.dic.
2012-10-22 16:41:09.452 OpenEarsSampleApp[84775:11f03] Now using the fallback method to look up the word LONGFORD
2012-10-22 16:41:09.452 OpenEarsSampleApp[84775:11f03] Using convertGraphemes for the word or phrase LONGFORD which doesn't appear in the dictionary


These warning are mostly related to Irish location names.

Besides, there has been these warnings just after running OpenEarsSampleApp in iPhone Simulator:

sih_add WARNING: repeated hashing of 'GAMES', older value will be overridden.
sih_add WARNING: repeated hashing of 'GAS', older value will be overridden.
sih_add WARNING: repeated hashing of 'LEITRIM', older value will be overridden.
sih_add WARNING: repeated hashing of 'LESSONS', older value will be overridden.
sih_add WARNING: repeated hashing of 'MEATH', older value will be overridden.
sih_add WARNING: repeated hashing of 'MONTESSORI', older value will be overridden.
sih_add WARNING: repeated hashing of 'MORTGAGE', older value will be overridden.
sih_add WARNING: repeated hashing of 'RENTAL', older value will be overridden.
sih_add WARNING: repeated hashing of 'SALON', older value will be overridden.
sih_add WARNING: repeated hashing of 'SEWER', older value will be overridden.
sih_add WARNING: repeated hashing of 'SUPPLIES', older value will be overridden.
sih_add WARNING: repeated hashing of 'TARMAC', older value will be overridden.
sih_add WARNING: repeated hashing of 'TARMACADAM', older value will be overridden.
sih_add WARNING: repeated hashing of 'TYRES', older value will be overridden.
sih_add WARNING: repeated hashing of 'USED', older value will be overridden.
sih_add WARNING: repeated hashing of 'VETINARY', older value will be overridden.
sih_add WARNING: repeated hashing of 'WINDSCREEN', older value will be overridden.