Embodiments include a planar microphone array comprising a first linear array arranged along a first axis; and a second linear array arranged along a second axis orthogonal to the first axis, a center of the second linear array aligned with a center of the first linear array, wherein each of the first linear array and the second linear array comprises a corresponding first set of microphone elements nested within a corresponding second set of microphone elements, and each set of microphone elements is arranged symmetrically about the center of the corresponding linear array, such that the first linear array and the second linear array are configured to generate a steerable directional polar pattern, the microphone elements of each linear array configured to capture audio signals. Embodiments also include a microphone system comprising the same and a method performed by processor(s) to generate an output signal for the same.

An analog-to-digital converter (ADC) includes a first controlled oscillator (CO) for generating at least one phase signal, and wherein the at least one phase signal generates a first output signal of the ADC; and at least one first frequency-controlled resistor (FDR) for receiving the at least one phase signal generated by the first CO, wherein the first CO and the at least one first FDR are coupled together at a first subtraction node of the ADC, and wherein the first subtraction node receives a first input signal.

Presented herein are acoustic port covers for attachment to electronic devices. An electronic device includes a housing having at least one acoustic port extending through the housing. An acoustic port cover in accordance with embodiments presented herein is configured to be detachably coupled to the housing so as to cover the at least one acoustic port and function as a barrier to the accumulation of foreign materials/contaminants at a protective membrane associated with the at least one acousticport.

Presented herein are acoustic port covers for attachment to electronic devices. An electronic device includes a housing having at least one acoustic port extending through the housing. An acoustic port cover in accordance with embodiments presented herein is configured to be detachably coupled to the housing so as to cover the at least one acoustic port and function as a barrier to the accumulation of foreign materials/contaminants at a protective membrane associated with the at least one acousticport.

Electronic acoustic devices and methods of operating the same include a microphone having a frequency response including a resonance frequency, a reference microphone having a frequency response including a resonance frequency, the microphone and the reference microphone configured to substantially simultaneously receive a common acoustic signal to produce a transduced signal of the microphone and a transduced signal of the reference microphone, the resonance frequency of the reference microphone being different than the resonance frequency of the microphone, and an equalization module configured to equalize the frequency response of the microphone based on the transduced signal of the microphone and the transduced signal of the reference microphone.

Head-wearable apparatus to generate binaural audio content includes a first stem coupled to a first microphone housing that encases first front microphone and first rear microphone that generates acoustic signals, respectively. First microphone housing includes a first front port that faces downward and a first rear port that faces backwards. Apparatus includes second stem coupled to second microphone housing that encases second front microphone and second rear microphone that generate acoustic signals, respectively. Second microphone housing includes second front port that faces downward and second rear port that faces backwards. Apparatus includes binaural audio processor that includes beamformer and storage device. Beamformer generate first beamformer signal based on acoustic signals from first front microphone and first rear microphone, and second beamformer based on acoustic signals from second front microphone and second rear microphone. Storage device stores first and second beamformer signals as a two-channel file.

A headphone and an electronic device are provided. The headphone includes a gyroscope, which senses a bone conduction vibration and provides a quadrature error signal for reflecting the bone conduction vibration. Specifically, the headphone includes a transmission assembly that acts directly or indirectly on the gyroscope or an inertial measurement unit (IMU) including the gyroscope. The transmission assembly transmits the bone conduction vibration to the gyroscope to make the gyroscope strain, thereby causing the quadrature error signal of the gyroscope to change to detect the bone conduction vibration with sensitivity.

In an embodiment a lid includes a top section and a side section below the top section, wherein a vertical height of the top section is I.sub.TS*H.sub.B, I.sub.TS being a first multiple integer and H.sub.B being a basic height, and wherein a vertical height of the side section is I.sub.SS*H.sub.B, I.sub.SS being a second multiple integer and H.sub.B being the basic height H.sub.B.

In an embodiment a lid includes a top section and a side section below the top section, wherein a vertical height of the top section is I.sub.TS*H.sub.B, I.sub.TS being a first multiple integer and H.sub.B being a basic height, and wherein a vertical height of the side section is I.sub.SS*H.sub.B, I.sub.SS being a second multiple integer and H.sub.B being the basic height H.sub.B.

Certain embodiments provide a hearing test probe apparatus including a hearing test probe, an eartip, and a microphone. The probe includes a speaker disposed within a probe body, and a mounting stem extending from the probe body and including a speaker sound channel. The eartip is detachably coupled to the mounting stem, and includes an eartip body having an ear insertion end and a probe insertion end opposite the ear insertion end. The eartip body defines a central opening extending from the ear insertion end to the probe insertion end. The central opening includes an eartip sound channel at the ear insertion end and an eartip mounting portion at the probe insertion end. The eartip mounting portion is configured to receive and hold the mounting stem of the probe within the central opening. The microphone is disposed within the eartip when the eartip is detachably coupled to the mounting stem.