Systems and methods are provided herein for directing sound through a parametric speaker in connection with interpreting/translating messages in an open forum such that communications may be delivered and understood without the use of headphones. The directed sound may also be directed in connection with detecting auditory areas and targeting sound at the auditory regions of a subject.

A method for providing directed transmission of sound waves, through modulation on an ultrasonic carrier, may comprise connecting at least one directed sound source to an audio system; emitting, via the at least one directed sound source, audio from the audio system, wherein the emitting comprises emitting medium-frequency audio waves and higher-frequency audio waves. The audio may be selected via a master control unit (MCU), which may be operatively coupled to a mobile application. In some embodiments, a first audio selection is configured to be heard only through a first directed sound source, and a second audio selection is configured to be heard only through a second directed sound source.

Various technologies described herein pertain to active noise cancellation in the interior of a vehicle. In exemplary embodiments, a microphone mounted on the vehicle outputs an audio signal indicative of noise emitted by a noise source. A computing system of the vehicle determines a position of the noise source based upon sensor signals output by sensors mounted on the vehicle. The computing system further determines a position of a passenger in the vehicle based upon a sensor mounted inside the vehicle. The computing system generates a complementary signal that is configured to attenuate the noise based upon the audio signal, the position of the noise source, and the position of the passenger. The complementary signal is then output by way of a speaker in the interior of the vehicle.

Some demonstrative embodiments include apparatuses, systems and/or methods of testing an acoustic device, an acoustic component, and/or a device or system including one or more acoustic devices. For example, an acoustic device tester may be configured to process input acoustic information of a tested acoustic device to determine a tested acoustic value distribution for the tested acoustic device in a plurality of frequency sub-bands; determine whether or not the tested acoustic device meets a predefined testing criterion based on the tested acoustic value distribution and a reference profile defining a plurality of reference values corresponding to the plurality of frequency sub-bands, respectively; and generate an output to indicate whether or not the tested acoustic device meets the predefined testing criterion.

A method for providing directed transmission of sound waves, through modulation on an ultrasonic carrier, may comprise connecting at least one directed sound source to an audio system; emitting, via the at least one directed sound source, audio from the audio system, wherein the emitting comprises emitting medium-frequency audio waves and higher-frequency audio waves. The audio may be selected via a master control unit (MCU), which may be operatively coupled to a mobile application. In some embodiments, a first audio selection is configured to be heard only through a first directed sound source, and a second audio selection is configured to be heard only through a second directed sound source.

Systems and methods herein provide directed sound to venues, including a queue line and locations offering multiple viewing devices with different audio streams. Directed sound can be sent to various locations in the queue line to reach specific individuals, positions in the queue line, etc. A queue rate may be used to determine current locations in the queue line. The directed transmission of sound waves can provide the directed sound through modulation of the sound on an ultrasonic carrier. In connection with directing sound to a specific location in a venue, one or more individuals can be tracked according to an indoor positioning system to send a sound message using a modulated ultrasonic carrier.

A vehicle includes a first voice output section, a second voice output section, and a third voice output section which are arranged side by side in a vehicle width direction of the vehicle. If the vehicle speed is a first threshold or less, the vehicle causes at least one of the first voice output section, second voice output section, and third voice output section to output noise sound.

An earmuffs system for noise reduction including an external microphone used in combination with active noise cancellation technology for the reduction of wind or other noises typically experienced while riding a vehicle such as a motorcycle, snow machine or ATV, the earmuffs system including a first earmuff including a first speaker and a first microphone therein; a second earmuff electrically coupled to the first ear muff, the second ear muff including a second speaker and a second microphone therein; noise cancellation circuitry for receiving first sounds from the first microphone and the second microphone and processing the first sounds by in part canceling the first sounds to form a first sound output that is provided from the first speaker and the second speaker; a third microphone placed external to the first earmuff, the third microphone supplying second sounds for the first speaker to output as a second sound output without the second sounds undergoing noise cancellation processing; and a fourth microphone placed external to the second earmuff, the fourth microphone supplying third sounds for the second speaker to output as a third sound output without the third sounds undergoing noise cancellation processing.

Systems and methods for the reduction of noise arising from the fluid mechanics of the aerodynamic interactions of the relative motion of solid elements with a fluid, generally air, by generating pressure fields at or close to the source of the aerodynamic noise, these pressure fields having amplitudes and frequencies equivalent to those of the noise fields to be reduced, but phases opposite thereto. These generated pressure fields globally cancel the effect of the noise fields and this affect is propagated into the far field. Use is made of planar electro-thermal transducers, transforming a periodically fluctuating heat flux generated by Joule AC heating into an acoustic wave. The frequency, amplitude and phase of the noise field may be detected by microphones positioned close to points of generation of the noise field, such that the cancellation is effective over the same region as the noise field propagates.

A vehicle includes a first voice output section, a second voice output section, and a third voice output section which are arranged side by side in a vehicle width direction of the vehicle. If the vehicle speed is a first threshold or less, the vehicle causes at least one of the first voice output section, second voice output section, and third voice output section to output noise sound.