A method of generating a signal for driving a first linear array of sound sources. The first linear array of sound sources comprises a primary sound source and one or more secondary sound sources. The method comprises the steps of receiving an audio signal for a first channel of an audio system, deriving, from the audio signal, a first signal and a second signal, applying a low-pass filter to the second signal to generate a second drive signal for driving the one or more secondary sound sources, and applying a corresponding high-frequency shelving filter to the first signal to generate a first drive signal for driving the primary sound source. A computer program product and an audio system for generating a levelled sound field is also provided.

Embodiments include a processing device communicatively coupled to a plurality of audio devices comprising at least one microphone and at least one speaker, and to a digital signal processing (DSP) component having a plurality of audio input channels for receiving audio signals captured by the at least one microphone, the processing device being configured to identify one or more of the audio devices based on a unique identifier associated with each of said one or more audio devices; obtain device information from each identified audio device; and adjust one or more settings of the DSP component based on the device information. A computer-implemented method of automatically configuring an audio conferencing system, comprising a digital signal processing (DSP) component and a plurality of audio devices including at least one speaker and at least one microphone, is also provided.

Systems and methods for determining sound-producing characteristics of electroacoustic transducers are disclosed. According to an aspect, a system includes electroacoustic transducers configured to generate sound. The system also includes an acoustoelectric transducer configured to convert sound produced by the electroacoustic transducers into one or more electrical signals. Further, the system includes a computing device configured to apply one or more patterns of electrical signals to the electroacoustic transducers to test for one or more sound-producing characteristics. The computing device is also configured to receive, from the acoustoelectric transducer, electrical signals that resulted from application of the patterns of electrical signals to the electroacoustic transducers. Further, the computing device is configured to determine, based on the received electrical signals, the sound-producing characteristics of the electroacoustic transducers for use in controlling the electroacoustic transducers to generate one or more predetermined sounds.

A localized sound projection system can coordinate the sounds of speakers to simulate the placement of an auditory cue in a 3D space. The system can include a plurality of speakers configured to output auditory signals and a sound localization controller configured to control the plurality of speakers to coordinate the auditory signals to simulate an origination location of a patient alarm. The sound localization controller can determine adjusted auditory signals and control a plurality of speakers to output the plurality of adjusted auditory signals. A method for dynamically controlling speaker settings in a medical environment can include determining volume settings corresponding to a speaker, monitoring a level of ambient noise corresponding to a room of a patient, controlling the volume settings of the speaker to reduce or increase a sound level output of a speaker. A patient monitoring system can be configured to physically manipulate medical devices in response to audible commands. The system can receive a plurality of vocal commands from a user and can manipulate various settings after confirmation from a user.

A method for delivering an optimized acoustic signal to a targeted sound field includes determining a bright zone having a high acoustic energy sound delivery region and a dark zone having low acoustic energy sound delivery region. The system selects a finite impulse response (FIR) filter set associated with a plurality of loudspeakers, and generates, via the plurality of loudspeakers and based on the FIR filter set, an acoustic signal having a sound pressure due to the combined loudspeakers (p) at an observation point r in a sound field disposed in the bright zone. The acoustic signal is delivered such that the sound pressure due to the combined loudspeakers at the observation point is approximately equal to unity acoustic energy at the observation point when the sound pressure due to the combined loudspeakers is generated via a single loudspeaker of the plurality of loudspeakers, and the remaining loudspeakers of the plurality of loudspeakers are off.

The present disclosure relates to an apparatus and method for monitoring a space using a three-dimensional acoustic web, and to a method of emitting a plurality of acoustic signals, forming a three-dimensional acoustic web in a monitoring target space based on interference between acoustic waves, and recognizing a situation of the monitoring target space based on a change in measured acoustic signals.

Embodiments of the present invention are directed to a system and method for demonstrating spatial performance of a demonstration speaker model to consumers in order to evaluate different speakers. The system and method comprise a microphone array for recording the output of the demonstration speaker model. The system and method comprise acoustic input samples for processing to an acoustic output and a processor for determining characteristics of each microphone recording, and processing an acoustic input sample and characteristics of each microphone recording corresponding to a selected demonstration speaker model. The system and method further comprise a reference speaker model for outputting an acoustic signal based on the result of the processing. The processing compensates for the performance characteristic of the reference speaker and the performance characteristic of the selected demonstration speaker so as to mimic the spatial characteristics of the demonstration speaker while avoiding bias from the reference speaker.

Some implementations involve receiving a content stream that includes audio data, receiving at least one type of level adjustment indication relating to playback of the audio data and controlling a level of the input audio data, based on the at least one type of level adjustment indication, to produce level-adjusted audio data. Some examples involve determining, based at least in part on the type(s) of level adjustment indication, a multiband limiter configuration, applying the multiband limiter to the level-adjusted audio data, to produce multiband limited audio data and providing the multiband limited audio data to one or more audio reproduction transducers of an audio environment.

[Problem] To provide a technology capable of comfortably enjoying audio content via multiple channels even in a noisy environment. [Solution] A wireless terminal 3 is disposed at a listening point of a multi-channel audio device 1. The multi-channel audio device 1 plays a multi-channel audio signal as audio playback signals of a plurality of channels, and outputs an audio playback signal for each channel from the corresponding speaker 2, and the wireless terminal 3 collects the environmental sound at the listening point, and transmits the sound collection signal to the multi-channel audio device 1. The multi-channel audio device 1 identifies, as a noise component, the difference between the sound collection signal received from the wireless terminal 3 and the audio playback signals of the plurality of channels output from the plurality of speakers, generates a noise canceling signal with the opposite phase to the noise component, and outputs the noise canceling signal from any speaker 2.

Systems and methods for mapping noise via a plurality of playback devices within an environment are disclosed herein. In one example, a plurality of playback devices can each output audio and also detect sound within the environment to obtain respective sound data specimens. For each playback device, the respective sound data specimen can be analyzed to obtain a respective noise determination. A spatial map of the noise determinations within the environment can then be constructed. A visual representation of the spatial map can further be presented to a user. In response to the noise determinations and/or a user input, the audio output via at least one of the playback devices can be modified, for example to mask or suppress noise within one or more regions of the environment.