摘要:
An example method of operation may include initiating an automated tuning procedure, detecting via one or more microphones a sound measurement associated with an output of one or more speakers at two or more locations, determining a number of speech transmission index (STI) values equal to a number of microphones, and averaging the speech transmission index values to identify a single speech transmission index value.
摘要:
An example method of operation may include initiating an automated tuning procedure, detecting via one or more microphones a sound measurement associated with an output of one or more speakers at two or more locations, determining a number of speech transmission index (STI) values equal to a number of microphones, and averaging the speech transmission index values to identify a single speech transmission index value.
摘要:
A mechanism is described for facilitating context-based cancellation and amplification of acoustical signals in acoustical environments according to one embodiment. An apparatus of embodiments, as described herein, includes detection and recognition logic to detect an acoustical signal being emitted by an acoustical signal source; evaluation, estimation, and footprint logic to classify the acoustical signal as an emergency acoustical signal or a non-emergency acoustical signal, wherein the classification is based on a footprint or a footprint identification (ID) associated with the acoustical signal; acoustical signal cancellation logic to cancel the acoustical signal if the acoustical signal is regarded as the non-emergency acoustical signal based on the footprint or the footprint ID; and acoustical signal amplification logic to amplify the acoustical signal if the acoustical signal is classified as the emergency acoustical signal based on the footprint or the footprint ID.
摘要:
A method for adjusting an audio zone sound image in an audio system (2, 6, 7) comprising a plurality of audio zones (2A, 2B, 6A, 6B, 6C, 6D, 7A, 7B, 7C) is disclosed. Each audio zone has one or more loudspeakers (20, 21, 60, 61, 63, 64, 65, 66, 67, 68, 69, 70, 72, 73, 74, 75) located therein. The method comprises recording (101, 802) a sound image of a controlling audio zone; transmitting (102, 803) audio data corresponding to the recorded sound image to a controller; evaluating (103, 103a, 804) the transmitted audio data; selecting (104, 805) an adjusting audio zone, wherein the adjusting audio zone is other than the controlling audio zone; and adjusting (105, 105a, 105b, 807) an adjusting loudspeaker such that the sound image of the controlling audio zone is changed. An audio system (2, 6, 7) and a controlling loudspeaker are also disclosed.
摘要:
There is provided a method of operating a device to generate a target sound that is audible to a user of the device, the method comprising measuring background noise in an environment in which the device is located; using a perceptual loudness model to predict an audibility of the target sound to the user of the device based on the measured background noise; using the output of the perceptual loudness model to determine a gain value that is to be applied to a source signal used to generate the target sound in order to provide at least a desired level of audibility of the target sound to the user; applying the determined gain value to the source signal to produce a modified source signal; and generating the target sound using the modified source signal.
摘要:
An audio matrix formed from absolute amplitude values of coefficients obtained by frequency-transforming an audio signal is generated. The audio matrix is factorized into a basis spectrum and activity matrices. Bases in the basis spectrum matrix are classified into bases concerning a target sound and bases concerning noise. Bases in the activity matrix are classified into bases concerning the target sound and bases concerning the noise. Bases concerning the target sound are obtained from the bases concerning the noise classified from the basis spectrum matrix. A matrix including frequency amplitude values of the target sound is obtained using the bases concerning the target sound classified from the basis spectrum matrix, the bases concerning the target sound and noise classified from the activity matrix, and the obtained bases. The audio signal of the target sound is generated using the matrix.
摘要:
Embodiments described herein involve configuring a playback device based on the detection of a barrier in proximity to the playback device. One embodiment may involve receiving proximity data that includes an indication of a barrier that is proximate to a playback device; detecting that the barrier is within a threshold proximity to a first speaker of the playback device based on the indication of the barrier proximate to the playback device; in response to the detecting, setting a playback configuration of the playback device; and causing the playback device to play an audio content according to the playback configuration.
摘要:
The present disclosure is directed to devices, methods and systems for microphone arrays wherein enhancing performance of directional microphone arrays is provided. Enhanced performance of speaker phones is also provided. In certain embodiments, the housing of the device is configured to support the at least three microphones and the loudspeaker in a substantially first orientation; and the at least three microphones and the loudspeaker are arranged in a spatial relationship such that appropriate phase and delay characteristics achieve a substantial null response in the at least three microphones and in the loudspeaker in a substantial vertical direction away from the substantially first orientation over a desired audible range of frequencies and the device is able to provide a response to sounds over a range of first oriented elevations.
摘要:
Embodiments described herein involve configuring a playback device based on the detection of a barrier in proximity to the playback device. An example implementation may involve configuring the playback device for audio output in a given environment by calibrating the playback device to at least partially offset acoustic effects of the given environment. After the playback device is configured for audio output, the playback device may detect a barrier within proximity of the playback device by detecting a change in the acoustic effects of the given environment. In response to detecting the barrier within proximity of the playback device, the playback device may adjust the calibration.
摘要:
A method for wireless data exchange between devices in live events is presented. A method for exploring data of multiple devices in order to get information on the acoustic paths in different locations of venues is also provided. A method of exploring the microphones of sound-capturing devices of live event's audience is also presented.