Why did Alexa’s voice change? Users say the new sound is jarring, emotional, and unexpected after Amazon’s latest update.

Amazon is automatically transitioning some Echo devices to Alexa Plus for Prime members, sparking dissatisfaction due to slower responses and increased ads.

Smart speakers may be a convenient way to keep up with the events on your calendar or get the latest headlines and weather in your area. But what you may not know is that every time you call on Alexa ...