Amazon Echo devices could one day capture, process, and record audio spoken before the wakeword, for commands like “Play some music, Alexa.”
Amazon has filed a patent application with the US Patent and Trademark Office describing a technology that would allow Echo and other Alexa-enabled devices to capture what you say before a wakeword, like “Alexa” is uttered. Currently, Alexa devices only record and send audio to Amazon servers if a wakeword is detected. Should Amazon decide to develop or implement the technology, an Alexa-enabled device would constantly record and delete what you say using the device’s local memory storage.
In a statement, an Amazon spokesperson told BuzzFeed News that, “The technology in this patent is not in use, and referring to the potential use of patents is highly speculative.” The spokesperson added that Amazon files many patent applications that are not ultimately implemented into consumer-facing products, and that patents do not necessarily reflect “current or near-future states of products and services.
According to the patent application, after a wakeword is detected, Alexa may “look backwards” to determine if the command came before the wakeword, and use pauses in speech to identify the beginning of the command. At that point, the audio would be sent from the device to Amazon servers for full processing.
Still, the potential technology means that Alexa devices will be recording more conversations and more audio, including speech it think are commands. While Amazon’s speech recognition software is constantly being improved, Echo and third-party Alexa devices still
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