Abstract: The disclosure relates to a method for determining a status of an intermediate support of a dump body arrangement included in a working machine, the dump body arrangement including a support frame, a dump body for receiving a load and pivotally attached to the support frame at a rear pivot point, a hydraulic support for raising and lowering a front part of the dump body, wherein the intermediate support is arranged between the hydraulic support and the rear pivot point to support the dump body, wherein the method includes the steps of receiving a signal indicating that the hydraulic support changes between a load-free state and a loaded state relative the dump body.

Abstract: The present disclosure relates to a speaker device and in particular to a speaker device having a water proof diaphragm, wherein the speaker device is designed to sustain a water pressure of 10 Atmospheres. The present disclosure further relates to an electronic device comprising the speaker device.

Abstract: A headphone device includes a housing having a leakage hole to reduce pressure between a user's ear and the housing, a speaker positioned within the housing, and an audio processing module. The audio processing module is configured to receive an audio signal from an audio device, determine whether the audio signal includes at least a predetermined level of audio having a frequency in a first range of frequencies, transmit a first leakage control signal to a leakage hole valve when it is determined that the audio includes at least the predetermined level of low frequency audio; and transmit a second leakage control signal to the leakage hole valve when it is determined that the audio does not include at least the predetermined level of low frequency audio. The leakage hole valve is configured to close the leakage hole upon receipt of the first leakage control signal and open the leakage hole upon receipt of the second leakage control signal.

Abstract: The present disclosure relates to a speaker device and in particular to a speaker device having a water proof diaphragm, wherein the speaker device is designed to sustain a water pressure of 10 Atmospheres. The present disclosure further relates to an electronic device comprising the speaker device.

Abstract: A method may include receiving video recorded with a camera and audio recorded with a microphone, wherein the video and audio were recorded simultaneously, and wherein the microphone is configured to move relative to the camera. The method may further include receiving a selection from a user of an object in the video, wherein the object is collocated with the microphone that recorded the audio. The method may further include tracking the object in the video and determining a location over time of the microphone relative to the camera based on the tracking of the object.

Abstract: A method for driving a condenser microphone is provided. The condenser microphone comprises a membrane and an electrode constituting a capacity. A polarization voltage is applied between the membrane and the electrode. According to the method, an electrical signal generated by the condenser microphone based on a received acoustic signal causing a deflection of the membrane) is detected, and the polarization voltage is varied in response to the detected electrical signal.

Abstract: The present invention relates to a method for determining an acoustic property of an environment. According to the method a sound signal and at least two reflection signals of the sound signal (are received, and for each of the reflection signals a time difference between a time of reception of the sound signal and a time of reception of the respective reflection signal is determined. Furthermore, for each of the reflection signals, an angle between a reception direction in which the sound signal was received and a reception direction in which the respective reflection signal was received is determined. Based on the determined time differences, the angles and predetermined constraints defining arrangement constraints of the sound reflecting surfaces an arrangement of the sound-reflecting surfaces is determined.

Abstract: The invention is directed to a folded electrostatic speaker. An exemplary speaker comprises: a first membrane; a first electrode; a second membrane, at least a portion of the first membrane being connected to at least a portion of the second membrane; a second electrode; and a first opening defined between at least a portion of the first and second membranes for receiving and releasing air. At least a portion of the first membrane and at least a portion of the second membrane move substantially perpendicularly to at least a portion of the first opening. At least a portion of the first membrane moves towards at least a portion of the second membrane or away from at least a portion of the second membrane.

Abstract: A method includes detecting, via a first microphone coupled to a user's left ear, a sound, detecting, via a second microphone coupled to the user's right ear, the sound, determining a time difference between detection of the sound at the first microphone and detection of the sound at the second microphone, and estimating a user's head size based on the time difference. The method also includes identifying a head-related transfer function (HRTF) associated with the user's head size or modifying, a HRTF based on the user's head size. The method further includes applying the identified HRTF or modified HRTF to audio signals to produce output signals and forwarding the output signals to first and second speakers coupled to the user's left and right ears.

Abstract: A mobile device receives notification of an incoming call and identifies that an external speaker is connected to the mobile device. The mobile device detects that a user has positioned the mobile device in a position, relative to the user, to use an integrated ear speaker of the mobile device. When the mobile device detects that the user has positioned the mobile device in position to use the integrated ear speaker, the mobile device answers the incoming call and routes audio for the incoming call away from the external speaker and to the integrated ear speaker.

Abstract: The present invention relates to a method and arrangement for positioning at least two devices, a first and a second device relative each other. The method comprises: transmitting a number of magnetic pulses with the first device, detecting said pulses with the second device, based on said detected pulses generating a number of virtual planes, and determining a crossing line between said planes corresponding to a direction between said devices.

Abstract: A headset device includes binaural wind sensors to receive wind noise. The binaural wind sensors include a left wind sensor and a right wind sensor. The headset device includes a processor to execute instructions to receive wind noise induced by wind at the binaural wind sensors. The processor is also to determine a sound energy density distribution of the wind noise. The processor is to match the sound energy density distribution to one of a plurality of reference sound energy density distributions. Each of the plurality of reference sound energy density distributions includes an associated wind speed and wind direction. The processor is further to identify a wind speed and a wind direction corresponding to the matched reference sound energy density distribution.

Abstract: The present invention relates to a method and arrangement for positioning at least two devices, a first and a second device relative each other. The method comprises: transmitting a number of magnetic pulses with the first device, detecting said pulses with the second device, based on said detected pulses generating a number of virtual planes, and determining a crossing line between said planes corresponding to a direction between said devices.

Abstract: The invention relates to an audio device comprising: an audio source arranged to produce audio signals; an audio output arranged to connect at least one speaker with said audio device; impedance calculation means arranged to calculate an impedance of said at least one speaker; a speaker identification module arranged to determine the identity of said at least one speaker using said impedance and identification data relating to one or more reference speakers. Once the identity of a speaker is known, it can be used for audio compensation or marketing information.

Abstract: A method includes detecting, via a first microphone coupled to a user's left ear, a sound, detecting, via a second microphone coupled to the user's right ear, the sound, determining a time difference between detection of the sound at the first microphone and detection of the sound at the second microphone, and estimating a user's head size based on the time difference. The method also includes identifying a head-related transfer function (HRTF) associated with the user's head size or modifying, a HRTF based on the user's head size. The method further includes applying the identified HRTF or modified HRTF to audio signals to produce output signals and forwarding the output signals to first and second speakers coupled to the user's left and right ears.

Abstract: A headphone device includes a housing having a leakage hole to reduce pressure between a user's ear and the housing, a speaker positioned within the housing, and an audio processing module. The audio processing module is configured to receive an audio signal from an audio device, determine whether the audio signal includes at least a predetermined level of audio having a frequency in a first range of frequencies, transmit a first leakage control signal to a leakage hole valve when it is determined that the audio includes at least the predetermined level of low frequency audio; and transmit a second leakage control signal to the leakage hole valve when it is determined that the audio does not include at least the predetermined level of low frequency audio. The leakage hole valve is configured to close the leakage hole upon receipt of the first leakage control signal and open the leakage hole upon receipt of the second leakage control signal.

Abstract: A method may include receiving video recorded with a camera and audio recorded with a microphone, wherein the video and audio were recorded simultaneously, and wherein the microphone is configured to move relative to the camera. The method may further include receiving a selection from a user of an object in the video, wherein the object is collocated with the microphone that recorded the audio. The method may further include tracking the object in the video and determining a location over time of the microphone relative to the camera based on the tracking of the object.

Abstract: The present invention relates to a method and arrangement for improving quality of a voice transmission by extracting filter coefficient parameters with respect to a voice signal in a first speech transmission rate, and using the extracted filter coefficient parameters in a second transmission rate that is equal or lower than the first transmission rate.

Abstract: A method for driving a condenser microphone is provided. The condenser microphone comprises a membrane and an electrode constituting a capacity. A polarization voltage is applied between the membrane and the electrode. According to the method, an electrical signal generated by the condenser microphone based on a received acoustic signal causing a deflection of the membrane is detected, and the polarization voltage is varied in response to the detected electrical signal.

Abstract: A method for generating an audio signal of a user is provided. According to the method, a first audio signal inside of an ear of the user and a second audio signal outside of the ear is detected. The first audio signal and the second audio signal comprise at least a voice signal component generated by the user. Depending on the first audio signal the second audio signal is processed and output as the audio signal.