Performance Disparities between Accents in Automatic Speech Recognition (Student Abstract)

Modelling Accents for Automatic Speech Recognition

Accent is cited as an issue for speech recognition systems. If they are to be widely deployed, Automatic Speech Recognition (ASR) systems must deliver consistently high performance across user populations. Hence the development of accentrobust ASR is of significant importance. This research investigates techniques for compensating for the effects of accents on performance of Hidden Markov Model...

Predicting Automatic Speech Recognition Performance

In spoken dialogue systems, it is important for a system to know how likely a speech recognition hypothesis is to be correct, so it can reprompt for fresh input, or, in cases where many errors have occurred, change its interaction strategy or switch the caller to a human attendant. We have discovered prosodic features which more accurately predict when a recognition hypothesis contains a word e...

Speech Recognition of South African English Accents

Declaration By submitting this thesis electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitly otherwise stated), that reproduction and publication thereof by Stellenbosch University will not infringe any third party rights and that I have not previously in its entirety or in part submitt...

Automatic annotation and classification of phrase accents in spontaneous speech

During the last years, we have been working on the automatic classi cation of boundaries and accents in the German VERBMOBIL (VM) project (human-human communication, appointment scheduling dialogues). A sub-corpus was annotated manually with prosodic boundary and accent labels, and neural networks (NN) trained with a large set of prosodic features were used for automatic classi cation. The clas...

Automatic Speech Recognition for Low-resource Languages and Accents Using Multilingual and Crosslingual Information