Home Digital Voice Assistants (HDVAs) are getting popular in recent years. Users can control smart devices and get living assistance through those HDVAs (e.g., Amazon Alexa, Google Home) using voice. In this work, we study the insecurity of HDVA service by using Amazon Alexa as a case study. We disclose three security vulnerabilities which root in the insecure access control of Alexa services. ...

OBJECTIVES To assess the long-term results of the Provox ActiValve, a prosthesis for voice rehabilitation after total laryngectomy that was designed to lessen the need for frequent replacements caused by Candida and "underpressure." PATIENTS AND METHODS Retrospective assessment of device lifetime, indications for replacement, voice quality, and maintenance issues, measured by a structured tri...

Voice activity detection (VAD) aims for detecting the presence of speech in a given input signal, and is often first step voice -based applications such as communication systems. In context personal devices, own (OVD) sub-task VAD, since it targets person wearing device, while ignoring other speakers interference signals. This article summarizes recent single multi-microphone, multi-sensor, hea...

This paper proposes a spectral normalization approach in which the acoustical qualities of an input speech waveform are mapped onto that of a desired neutral voice. Such a method can be e ective in reducing the impact of speaker variability such as accent, stress, and emotion for speech recognition. In the proposed method, the transformation is performed by modeling the temporal characteristics...