Provided herein are system, apparatus, device, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for transmitting messages to a display device based on detected audio output from the display device. In a given embodiment, a digital media player can transmit a message to the display device to control the audio output of the speaker using a transmission protocol, and transmit a set of instructions to the remote control device to confirm the display device processed the message by determining whether an attribute associated with the audio output from the speaker is within a predetermined threshold. In response to receiving a message that an attribute associated with the audio output is within a predetermined threshold, the digital media player can determine that the display device is enabled to receive communication via the transmission protocol.

Systems and methods for volume control over intercom trunk lines. One example method includes receiving, from a first keypanel coupled to a first intercom, a call request identifying a remote keypanel coupled to a second intercom. The method includes transmitting a trunk request based on the call request and receiving a trunk setup message. The method includes activating a first crosspoint to provide a two-way audio connection between the first and second intercom devices. The method includes applying a trunk gain value to the first crosspoint based on the remote keypanel and transmitting, with an audio gain based on the trunk gain value, an audio stream received from the first keypanel. The method includes receiving, from the second intercom, a gain adjustment value associated with the first keypanel and the remote keypanel and applying an adjusted trunk gain value to the first crosspoint based on the gain adjustment value.

Systems and methods for volume control over intercom trunk lines. One example method includes receiving, from a first keypanel coupled to a first intercom, a call request identifying a remote keypanel coupled to a second intercom. The method includes transmitting a trunk request based on the call request and receiving a trunk setup message. The method includes activating a first crosspoint to provide a two-way audio connection between the first and second intercom devices. The method includes applying a trunk gain value to the first crosspoint based on the remote keypanel and transmitting, with an audio gain based on the trunk gain value, an audio stream received from the first keypanel. The method includes receiving, from the second intercom, a gain adjustment value associated with the first keypanel and the remote keypanel and applying an adjusted trunk gain value to the first crosspoint based on the gain adjustment value.

Systems and methods for volume control over intercom trunk lines. One example method includes receiving, from a first keypanel coupled to a first intercom, a call request identifying a remote keypanel coupled to a second intercom. The method includes transmitting a trunk request based on the call request and receiving a trunk setup message. The method includes activating a first crosspoint to provide a two-way audio connection between the first and second intercom devices. The method includes applying a trunk gain value to the first crosspoint based on the remote keypanel and transmitting, with an audio gain based on the trunk gain value, an audio stream received from the first keypanel. The method includes receiving, from the second intercom, a gain adjustment value associated with the first keypanel and the remote keypanel and applying an adjusted trunk gain value to the first crosspoint based on the gain adjustment value.

Systems and methods for volume control over intercom trunk lines. One example method includes receiving, from a first keypanel coupled to a first intercom, a call request identifying a remote keypanel coupled to a second intercom. The method includes transmitting a trunk request based on the call request and receiving a trunk setup message. The method includes activating a first crosspoint to provide a two-way audio connection between the first and second intercom devices. The method includes applying a trunk gain value to the first crosspoint based on the remote keypanel and transmitting, with an audio gain based on the trunk gain value, an audio stream received from the first keypanel. The method includes receiving, from the second intercom, a gain adjustment value associated with the first keypanel and the remote keypanel and applying an adjusted trunk gain value to the first crosspoint based on the gain adjustment value.

A non-invasive ventilation voice amplification system includes a microphone module for placement in a non-invasive ventilation mask. The microphone module has a microphone element for detecting a patient's voice and a speaker for projecting the voice. The microphone module connects to a controller module that houses electronics for processing and amplifying the audio signal.

Provided herein are system, apparatus, device, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for transmitting messages to a display device based on detected audio output from the display device. In a given embodiment, a digital media player can transmit a message to the display device to control the audio output of the speaker using a transmission protocol, and transmit a set of instructions to the remote control device to confirm the display device processed the message by determining whether an attribute associated with the audio output from the speaker is within a predetermined threshold. In response to receiving a message that an attribute associated with the audio output is within a predetermined threshold, the digital media player can determine that the display device is enabled to receive communication via the transmission protocol.

Provided herein are system, apparatus, device, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for transmitting messages to a display device based on detected audio output from the display device. In a given embodiment, a digital media player can transmit a message to the display device to control the audio output of the speaker using a transmission protocol, and transmit a set of instructions to the remote control device to confirm the display device processed the message by determining whether an attribute associated with the audio output from the speaker is within a predetermined threshold. In response to receiving a message that an attribute associated with the audio output is within a predetermined threshold, the digital media player can determine that the display device is enabled to receive communication via the transmission protocol.

A technique for rotational correction of a microphone array includes generating first audio signals representative of sounds emanating from an environment and captured with an array of microphones of an ear-mountable listening device; identifying a characteristic human behavior having at least one of a typical head orientation or a typical head motion associated with the characteristic human behavior by monitoring sensors mounted in fixed relation to the array of microphones; determining a rotational position of the array of microphones relative to the ear based at least in part upon identifying the characteristic human behavior; applying a rotational correction to the first audio signals to generate a second audio signal, wherein the rotational correction is based at least in part upon the rotational position; and driving a speaker of the ear-mountable listening device with the second audio signal to output audio into an ear.

Systems and methods for volume control over intercom trunk lines. One example method includes receiving, from a first keypanel coupled to a first intercom, a call request identifying a remote keypanel coupled to a second intercom. The method includes transmitting a trunk request based on the call request and receiving a trunk setup message. The method includes activating a first crosspoint to provide a two-way audio connection between the first and second intercom devices. The method includes applying a trunk gain value to the first crosspoint based on the remote keypanel and transmitting, with an audio gain based on the trunk gain value, an audio stream received from the first keypanel. The method includes receiving, from the second intercom, a gain adjustment value associated with the first keypanel and the remote keypanel and applying an adjusted trunk gain value to the first crosspoint based on the gain adjustment value.