The Evolution of the Mean Opinion Scale: From MOS-R to MOS-X2
By Jim Lewis, PhD and Jeff Sauro, PhD . August 18, 2020 . Tags: Mean Opinion Scale, Voice Interaction, Market Research, Customer Experience
The Mean Opinion Scale (MOS) is a standardized questionnaire used to assess synthetic speech. The quality of synthetic speech strongly affects the user experience of working with conversational systems, with listeners making rapid and unconscious judgments of the speaker’s personality, so it’s important to have standardized methods for its assessment. In an earlier article, we described how the MOS was originally developed to assess speech