You have to be close to the speaker if you’re whispering so Alexa can comprehend what you’re saying. Does it work well?Īlexa can recognize whispers about as well as normal voices, with one distinct difference. For example, the Echo Dot’s performance is excellent, but the Echo Look is far less consistent. In our experience, some Echo devices are better at detecting whispers than others.
These developments allow Alexa to understand and respond to different volumes, even whispers. In an effort to resolve this non-voice problem, Alexa scientists examined peak LSTM confidence data over utterance frames and then made changes for optimal efficacy. Silence is part of the input for whisper detection as well. Alexa’s end-pointing process - how it detects when you finish speaking a command and expect a response - is also important. Whisper mode uses long short-term memory neural networks (LSTMs), which are used in speech recognition. “Whispered speech is predominantly unvoiced, meaning that it doesn’t involve the vibration of the vocal cords, and it has less energy in lower frequency bands than ordinary speech,” explains Alexa Speech Group scientist Zeynab Raeesy in an Amazon Alexa Developers Blog. Problem is, when you whisper, you’re not really using your voice. How does whisper mode work?įor Alexa to use whisper mode, the smart speaker must be able to detect whether or not a person is whispering, understand the voice input, and respond in the same manner. Step 5: Tap the toggle next to Whisper Mode to enable this feature.
Step 4: Scroll down and tap Voice Responses listed under Alexa Preferences. Step 2: Tap the More tab located at the bottom right. Fitbit Versa 3Īnother way to get Alexa to have a soft, nighttime conversation is to enable the whisper mode setting in the Amazon Alexa app.
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