Laura Starecheski, "Can Changing How You Sound Help You Find Your Voice?", NPR All Things Considered 10/14/2014:
Just having a feminine voice means you're probably not as capable at your job.
At least, studies suggest, that's what many people in the United States think.
There's a gender bias in how Americans perceive feminine voices: as insecure, less competent and less trustworthy. This can be a problem — especially for women jockeying for power in male-dominated fields, like law.