Though I think most of VanillaSwirls comments are generally confused, there are some biases that show up in this space.
In particular, people rate the intelligibility&#x2F;clarity of Caucasian speakers higher than that of East Asians <i>even when the audio is the same</i>.[0]<p>[0]: <a href="http:&#x2F;&#x2F;www.academia.edu&#x2F;6126025&#x2F;Expectations_on_Speech_Evaluation_Reverse_Linguistic_Stereotyping_Measuring_the_Effect_of_Listener" rel="nofollow">http:&#x2F;&#x2F;www.academia.edu&#x2F;6126025&#x2F;Expectations_on_Speech_Evalu...</a><p>Key quote from page 444:
In a typical study in this paradigm, participants listened to 4 minutes of a tape-recorded lecture produced by a native speaker of standard American English. Some participants were lad[sic] to believe that they were listening to a North American NS[native speaker] instructor, whereas others were lead to believe that the instructor was an international NNS[non-native speaker].<p>[...]<p>[I]ndeed, listeners who were exposed to the Chinese&#x2F;NNS guise perceived more of a foreign accent and scored lower on a recall test than those who were exposed to the Caucasian&#x2F;NS guise even though the audiotape they heard was exactly identical (standard American English).