Abstract: Disclosed herein are apparatus, method, and computer program product whereby a device receives an acoustic signal. In response to the received acoustic signal, the device outputs electrical signals from a first input audio transducer and a second input audio transducer. The second input audio transducer is less sensitive than the first input audio transducer.

Abstract: An apparatus comprises an echolocation module configured to determine a distance to the object based on the received sound signal reflected from an object. The echolocation module determines surroundings based on the determined distance. A processor is configured to modify one or more attributes of the apparatus based on the determined surroundings.

Abstract: An apparatus comprises an echolocation module configured to determine a distance to the object based on the received sound signal reflected from an object. The echolocation module determines surroundings based on the determined distance. A processor is configured to modify one or more attributes of the apparatus based on the determined surroundings.

Abstract: Apparatus including: an acoustic transducer, and a sound channel coupled to the acoustic transducer, the sound channel including an element having a shape that is electrically controllable, wherein the shape of the element is electrically controllable to change the acoustic properties of the sound channel.

Abstract: An apparatus comprises a first transducer configured to detect sound and generate a first signal based on the detected sound. The apparatus also comprises a second transducer configured to detect vibration and/or sound and generate a second signal based on the detected vibrations and/or sound. The second transducer is less acoustically responsive than the first transducer. The apparatus comprises an interface configured to send the first and second signals to a processor configured to modify the first signal on the basis of the second signal.

Abstract: Apparatus including: an acoustic transducer, and a sound channel coupled to the acoustic transducer, the sound channel including an element having a shape that is electrically controllable, wherein the shape of the element is electrically controllable to change the acoustic properties of the sound channel.

Abstract: An acoustic transducer comprising: a mechanical acoustic filter configured to be electrically controllable to change the acoustic properties of the transducer.

Abstract: Apparatus including: an acoustic transducer, and a sound channel coupled to the acoustic transducer, the sound channel including an element having a shape that is electrically controllable, wherein the shape of the element is electrically controllable to change the acoustic properties of the sound channel.

Abstract: A method and a device for eliminating or minimizing the sensitivity changes in a microphone due to temperature changes. The temperature-induced changes in the sensitivity can be caused by the changes in the sound-to-electrical signal transducer, in the microphone membrane, in the ASIC or other reasons. One or more temperature dependent components in the microphone or in a microphone module are used to offset the temperature-induced changes in the sensitivity. Sensitivity of a microphone is defined as the output voltage for a specific acoustic stimulus and load condition.

Abstract: An acoustic transducer comprising: a flexible membrane; and a tension actuator, wherein the tension actuator is configured to be electrically controllable and define to the acoustic properties of the transducer dependent on the tension of the membrane.

Abstract: An acoustic transducer comprising: at least two membranes; and at least one adjustable coupling configured to adjustably couple oscillations between a first membrane and a second membrane of the at least two membranes.

Abstract: Disclosed herein are apparatus, method, and computer program product whereby a device receives an acoustic signal. In response to the received acoustic signal, the device outputs electrical signals from a first input audio transducer and a second input audio transducer. The second input audio transducer is less sensitive than the first input audio transducer.

Abstract: An acoustic transducer comprising: a flexible membrane; and a tension actuator, wherein the tension actuator is configured to be electrically controllable and define to the acoustic properties of the transducer dependent on the tension of the membrane.

Abstract: An acoustic transducer comprising: a mechanical acoustic filter configured to be electrically controllable to change the acoustic properties of the transducer.

Abstract: Apparatus comprising a receiver configured to receive a first audio signal, a signal characteriser configured to determine at least one characteristic associated with the first audio signal, a comparator configured to compare the at least one characteristic against at least one characteristic associated with at least one further audio signal, and a display configured to display the at least one characteristic associated with at least one further audio signal dependent on the first audio signal characteristic.

Abstract: An apparatus comprises an echolocation module configured to determine a distance to the object based on the received sound signal reflected from an object. The echolocation module determines surroundings based on the determined distance. A processor is configured to modify one or more attributes of the apparatus based on the determined surroundings.

Abstract: Disclosed herein are apparatus, method, and computer program product whereby a device receives an acoustic signal. In response to the received acoustic signal, the device outputs electrical signals from a first input audio transducer and a second input audio transducer. The second input audio transducer is less sensitive than the first input audio transducer.

Abstract: An apparatus comprises a first transducer configured to detect sound and generate a first signal based on the detected sound. The apparatus also comprises a second transducer configured to detect vibration and/or sound and generate a second signal based on the detected vibrations and/or sound. The second transducer is less acoustically responsive than the first transducer. The apparatus comprises an interface configured to send the first and second signals to a processor configured to modify the first signal on the basis of the second signal.

Abstract: A method and a device for eliminating or minimizing the sensitivity changes in a microphone due to temperature changes. The temperature-induced changes in the sensitivity can be caused by the changes in the sound-to-electrical signal transducer, in the microphone membrane, in the ASIC or other reasons. One or more temperature dependent components in the microphone or in a microphone module are used to offset the temperature-induced changes in the sensitivity. Sensitivity of a microphone is defined as the output voltage for a specific acoustic stimulus and load condition.

Abstract: Disclosed herein are apparatus, method, and computer program product whereby a device receives an acoustic signal, where the acoustic signal has a variable sound pressure level. A device outputs an electrical signal from an input audio transducer, where the input audio transducer is connected to a supply voltage. The device determines a distortion level of the electrical signal; and increases or decreases the supply voltage based on the distortion level.