Recommendations for designing hearing aids for Auditory-Visual speech communication
Programming should focus on improving the recognition of voicing information, and to a lessor extent, manner-of-articulation information.
Since voicing and manner information are primarily low frequency information, extend frequency response to include this region.
May need to consider effects of compression on low-frequency amplitude envelope.
Traditional concerns about upward spread of masking may not be warranted under auditory-visual conditions.