Patent classifications
H04R2205/024
METHODS FOR DETERMINING RELATIVE LOCATIONS OF WIRELESS LOUDSPEAKERS
Methods, systems, and apparatuses are described for determining relative locations of wireless loudspeakers and performing channel mapping thereof n audio processing component utilizes sounds produced by wireless loudspeakers during setup/installation procedures, which are received by a microphone at locations in an acoustic space, to determine an amount of time between when the audio signal is initially transmitted and when the microphone signal is received. The audio processing component also utilizes wireless timing signals provided by a wireless transceiver, at locations in the acoustic space, to wireless loudspeakers and then back to the wireless transceiver to determine an amount of time between transmission and reception by the wireless transceiver. The timing delays are used to determine the locations of the wireless loudspeakers in the acoustic space. Based on the determined locations, the audio processing component generates indications of correct or incorrect wireless loudspeaker placements, and performs audio channel mapping.
Engaging terminal devices
A method including producing a first audio output from a first device; and producing an electromagnetic field from a coil of the first device. The electromagnetic field includes information for at least partially producing a second audio output from a second device. The information is configured to provide a relationship between the first and second audio outputs such that when the first audio output is a first acoustic sound, for the first acoustic sound to be configured to acoustically couple with second acoustic sound from the second device which based upon the second audio output, or when the first audio output is not acoustic sound, for the first audio output to be output from the first device for a headset of at least one first user.
AUTOMATICALLY CONTROLLED DIRECTIONAL SPEAKER, AND LAMP THEREOF
An automatically controlled directional speaker includes a sound amplifying device, an image capture device, a computing device, an azimuth control motor and an amplitude control unit. The image capture device is provided for detecting the status of surrounding environment to generate image information, and the computing device is communicatively coupled to the image capture device for determining whether there is at least one face information in the image information, and the azimuth control motor is coupled to the sound amplifying device for controlling the azimuth of an output sound of the sound amplifying device according to the face information, and the amplitude control unit is communicatively coupled to the sound amplifying device for controlling the volume of the output sound of the sound amplifying device according to the face information. The speaker may be combined with a lamp to form an LED lamp with broadcasting and illumination functions.
Speaker array apparatus
A speaker array device includes a first speaker array and a second speaker array. The first speaker array has plural first speaker units arranged in a first surface and output a first sound. The second speaker array has plural second speaker units arranged in a second surface that is different from the first surface and output a second sound. When the second speaker array and the first speaker array are installed in a room having a ceiling, the second speaker array is installed in such a manner that a normal direction to the second surface is match with a direction in which the second sound emitted from the second speaker array reaches, only indirectly, through reflection or diffraction, a sound receiving point or that the normal direction to the second surface is match with a direction in which the second sound reaches the sound receiving point with a predetermined sound volume.
Distributed wireless speaker system
A user is guided through various setup routines to optimize speaker parameters and/or positions and/or frequency assignations for the particular space in which the speaker system is located and intended to be used. This can be done using an application downloaded from a cloud server to a smart phone or tablet computer, which is then employed by the user to optimize speaker configurations for various speaker locations in the room.
Loudspeaker system
A seat integrating a loudspeaker system includes a seat having a seat body having a horizontally oriented seat bottom and a seat back secured thereto. The loudspeaker system includes a sound assembly mounted within the seat back for selective movement between a storage orientation and a use orientation. The sound assembly includes a first support arm and a second support arm. A retraction control mechanism that moves the first support arm and the second support arm between the storage orientation and the extended use orientation. The system also includes a positioning system in communication with the retraction control mechanism, the positioning system including a user interface in the form of a graphical user interface allowing a user to input his or her position within the seat.
REFLECTED SOUND RENDERING USING DOWNWARD FIRING DRIVERS
Embodiments are directed to speakers and circuits that reflect sound off a wall surface (114) to a listening location at a distance from a speaker. The reflected sound (103) provides direct audio cues to reproduce audio objects that have direct audio components without the need for direct firing speakers. The speaker comprises sideward firing drivers (108) to reflect sound off of the wall surface (114) and represents a virtual direct speaker (116). A virtual direct filter is applied to the sideward-firing driver signal to improve the perception of direct audio transmitted by the sideward firing speaker (108) to provide optimum reproduction of the reflected sound. The virtual direct filter may be incorporated as part of a crossover circuit that separates the full band and sends high frequency sound to the sideward-firing driver (108).
AUDIO SIGNAL PROCESSING METHOD AND AUDIO SIGNAL PROCESSING APPARATUS
An audio signal processing method and an audio signal processing apparatus for synchronizing audio based on synchronization error between audio signals.
Real-time loudspeaker distance estimation with stereo audio
A method for estimating a distance between a first and a second loudspeaker characterized by playing back a first stereo source signal vector s.sub.1 on the first loudspeaker, and playing back a second stereo source signal vector s.sub.2 on the second loudspeaker, acquiring a first recorded signal vector x.sub.1, using a first microphone arranged adjacent to the first loudspeaker, and acquiring a second recorded signal vector x.sub.2 from a second microphone arranged adjacent to the second loudspeaker, wherein x.sub.1 and x.sub.2 are N-dimensional vectors, setting the distance equal to v/f, where v is the speed of sound, f is the sampling frequency, and is an estimated sample delay of a source signal played back on one of the loudspeakers and a recording acquired by a microphone at the other loudspeaker.
Audio system with mixed rendering audio enhancement
Various implementations include audio systems and methods for mixed rendering to enhance audio output. Certain implementations include an audio system having: at least one far-field speaker configured to output a first portion of an audio signal; and a pair of non-occluding near-field speakers configured to output a second portion of the audio signal in synchrony with the output of the first portion of the audio signal, where the second portion of the audio signal increases intelligibility of the speech content within the audio signal.