Abstract:
A noise suppression device includes: an adaptive filter unit that suppresses, using an adaptive filter, a noise component contained in a voice signal generated from a voice captured by a voice input unit to generate a corrected voice signal; a noise generation detection unit that detects timing of generation of the noise component in the voice signal; and a period suppression unit that suppresses the corrected voice signal during a predetermined period of time after the timing of the generation of the noise component.
Abstract:
A system and method of improving the efficiency in the power consumption of an audio system. In essence, the technique is to adjust the power delivered from the power supply to the analog section, such as the power amplifier, in response to the volume level indicated by the volume control module and/or in response to the detected characteristic of the input audio signal. Thus, in this manner, the analog section is operated in a manner that is related to the level of the signal it is processing. Additionally, the system and method also relate to a technique of adjusting the dynamic ranges of the digital signal and the analog signal to improve the overall dynamic range of the system without needing to consume additional power.
Abstract:
A first digital signal processor (DSP) associated with a first user outputs audio to the first user via first headphones, and captures speech from the first user via a first microphone. Similarly, a second DSP associated with a second user outputs audio to the second user via second headphones, and captures speech from the second user via a second microphone. The first DSP is coupled to the second DSP in order to allow the first and second users to share music and communicate with one another. The first user may speak into the first microphone, and the first and second DSPs may then interoperate to output that speech to the second user without substantially disrupting audio output to the second user. Each of the first and second users may also select between first and second audio sources that may be coupled to the first and second DSPs, respectively.
Abstract:
Examples of the disclosure describe user environment aware single channel acoustic noise reduction. A noisy signal received by a computing device is transformed and feature vectors of the received noisy signal are determined. The computing device accesses classification data corresponding to a plurality of user environments. The classification data for each user environment has associated therewith a noise model. A comparison is performed between the determined feature vectors and the accessed classification data to identify a current user environment. A noise level, a speech level, and a speech presence probability from the transformed noisy signal are estimated and the noise signal is reduced based on the estimates. The resulting signal is outputted as an enhanced signal with a reduced or eliminated noise signal.
Abstract:
There is disclosed a portable programmable device including a battery, a memory and a terminal connectable to earpieces, the device including in the memory a calibration file, parameter or parameters relating to audio sensitivity of the earpieces, the device being configured to play media data including audio, and to provide audio output to the earpieces, the device being further configured to, using the calibration file, parameter or parameters, calculate a noise dose relating to a sound exposure of a user resulting from audio output provided to the earpieces, and to record the noise dose on the device, wherein the device is configured to adjust audio output level in response to: (a) audio content included in played media data; (b) the calibration file, parameter or parameters, and (c) noise dose data of the user recorded on the device. A related method and computer program product are also disclosed.
Abstract:
With an acoustic device according to an embodiment, an acquiring unit acquires a frequency characteristic of external noise caused by road noise or the like and a converting unit converts a frequency characteristic of the acquired external noise to an auditory sensitivity characteristic in accordance with a frequency characteristic of auditory sensitivity. In the acoustic device, a setting unit sets a parameter (401) that is in accordance with an auditory sensitivity characteristic in an equalizer (12). The equalizer corrects, in accordance with the parameter that is set by the setting unit, a frequency characteristic of an audio signal that is played back by a playback unit (10).
Abstract:
The invention concerns a hearing device 10 for automatically enabling monitoring within the hearing device comprising an electronic module 30 arranged for collecting environment data of the hearing device, wherein environment data is based on events in the vicinity of the hearing device, at least one sound reproducing unit 12 arranged for receiving a first audio signal, wherein the electronic module comprising a processor 13 arranged to mix the received first audio signal and a monitored ambient sound signal based on the collected environment data. The invention also concerns a system and a method for automatically enabling monitoring within the hearing device.
Abstract:
A mobile terminal is disclosed. The mobile terminal comprises a sound output unit; a display unit displaying a plurality of level objects enabling the user to select a frequency gain predetermined according to the user's age in a sound setting mode; a microphone receiving external noise; and a controller outputting through the sound output unit a sound adjusted with a gain obtained as a summation of a gain adjusted in accordance with a selected level object and a gain adjusted in accordance with the level of input noise.