Abstract: A mobile device includes a housing. The mobile device further includes a first earpiece accessible via a first aperture in a first side of the housing. The mobile device further includes a second earpiece accessible via a second aperture in a second side of the housing, where the second aperture is located substantially in the center of the second side.

Abstract: An apparatus includes a moving mass transducer. The moving mass transducer generates sound by displacement of a surface defined by a piezoelectric element. The piezoelectric element is displaced in response to an interaction of a first signal with a magnetic field. The piezoelectric element is configured to be separately driving by a second signal.

Abstract: A mobile device includes a housing. The mobile device further includes a first earpiece accessible via a first aperture in a first side of the housing. The mobile device further includes a second earpiece accessible via a second aperture in a second side of the housing, where the second aperture is located substantially in the center of the second side.

Abstract: An electronic device for generating a masking signal is described. The electronic device includes a plurality of microphones and a speaker. The electronic device also includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The electronic device obtains a plurality of audio signals from the plurality of microphones. The electronic device also obtains an ambience signal based on the plurality of audio signals. The electronic device further determines an ambience feature based on the ambience signal. Additionally, the electronic device obtains a voice signal based on the plurality of audio signals. The electronic device also determines a voice feature based on the voice signal. The electronic device additionally generates a masking signal based on the voice feature and the ambience feature. The electronic device further outputs the masking signal using the speaker.

Abstract: An apparatus includes a housing and a piezoelectric element coupled to the housing. The apparatus also includes an electromagnetic element coupled to the housing. The piezoelectric element is configured to convert first signals within a first frequency band into first sound waves by vibrating a first portion of the housing. The electromagnetic element is configured to convert second signals within a second frequency band into second sound waves by vibrating the first portion of the housing and a second portion of the housing.

Abstract: An apparatus includes a moving mass transducer. The moving mass transducer generates sound by displacement of a surface defined by a piezoelectric element. The piezoelectric element is displaced in response to an interaction of a first signal with a magnetic field. The piezoelectric element is configured to be separately driving by a second signal.

Abstract: An electronic device for generating a masking signal is described. The electronic device includes a plurality of microphones and a speaker. The electronic device also includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The electronic device obtains a plurality of audio signals from the plurality of microphones. The electronic device also obtains an ambience signal based on the plurality of audio signals. The electronic device further determines an ambience feature based on the ambience signal. Additionally, the electronic device obtains a voice signal based on the plurality of audio signals. The electronic device also determines a voice feature based on the voice signal. The electronic device additionally generates a masking signal based on the voice feature and the ambience feature. The electronic device further outputs the masking signal using the speaker.

Abstract: A noise cancelling headset for voice communications contains a microphone at each of the user's ears and a voice microphone. The headset shares the use of the ear microphones for improving signal-to-noise ratio on both the transmit path and the receive path.