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About SSL


The Speech Science Laboratory (SSL) at the University of Hong Kong supports research in the areas of post-laryngectomy speech rehabilitation, static and dynamic quantification of articulatory behavior, objective assessment of various dysarthric speech, normal and pathological aspects of voice production, and objective accent identification, quantification, and modification. Our current research focuses include:

To achieve an acoustics-based, customizable accent reduction regimen based on theories of speech science
To establish articulatory norms among Cantonese speakers by using electromagnetic articulography (EMA)
To develop a hands-free electrolarynx with on/off and lexical pitch control and with more human-like voice quality
To examine the unique language effect on stuttering
To quantify vocal tract configuration using acoustic reflection technology
To investigate post surgical voice among patients with different voice disorders
To study speech comparison techniques on forensic application

The SSL maintains close research collaboration with:

Duquesne-China Health Institute, Duquesne Unversity, Pittsburgh, PA, USA
Hong Kong Voice & ENT Centre, Hong Kong
The New Voice Club of Hong Kong, Hong Kong
Digital Signal Processing and Speech Technology, Chinese University of Hong Kong, Hong Kong
Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
Department of Rehabilitation Medicine, The Central Hospital of Yongzhou, Hunan, China

Speaking without a Voice Box

We are currently looking for participants for our projects. Remumeration will be provided upon completion of your participation.
  1. Acoustic profiling of swallowing sounds associated with different boluses. Click for details.
  2. Deep learning for voice quality evaluation.