Abstract: The present technology relates to an audio signal output device and a method, an encoding device and a method, a decoding device and a method, and a program for realizing audio reproduction with a more realistic feeling. In a case where an audio signal generated to be output as a sound from an ideal speaker that is a virtual speaker placed in an ideal position is input, the distance between the ideal speaker and a real reproduction speaker is determined. Gain adjustment is then performed on the audio signal with the gain corresponding to the determined distance, the audio signal subjected to the gain adjustment is reproduced by the reproduction speaker. Accordingly, even in a case where there is a difference in position between the ideal speaker and the reproduction speaker, audio reproduction with a more realistic feeling can be realized. The present technology can be applied to reproduction devices.

Abstract: An electronic device comprising: a memory; a headphone jack; and at least one processor operatively coupled to the memory, configured to: detect an impedance of a first portion of the headphone jack; and detect whether a foreign substance is present in the headphone jack based on the impedance of the first portion of the headphone jack.

Abstract: A transmitting device comprises a binaural circuit (601) which provides a plurality of binaural rendering data sets, each binaural rendering data set comprising data representing parameters for a virtual position binaural rendering. Specifically, head related binaural transfer function data may be included in the data sets. A representation circuit (603) provides a representation indication for each of the data sets. The representation indication for a data set is indicative of the representation used by the data set. An output circuit (605) generates a bitstream comprising the data sets and the representation indications. The bitstream is received by a receiver (701) in a receiving device. A selector (703) selects a selected binaural rendering data set based on the representation indications and a capability of the apparatus, and an audio processor (707) processes the audio signal in response to data of the selected binaural rendering data set.

Abstract: Methods and systems for audio source separation in real-time are described. In an embodiment, the present disclosure describes reading and decoding an audio source into PCM samples, fragmenting Pulse Code Modulation (PCM) samples into fragments, transforming fragments into spectrograms, performing audio source separation using a training database that includes a training dictionary and non-negative matrix factorization (NMF) to generate a set of component signals, and streaming the component signals to a playback engine. In an embodiment, a semantic equalizer graphical user allows for fading of individual component signals.

Abstract: A method to produce a dynamic sound stage for engine harmonic enhancement (EHE). Dynamic refers to the ability to position the sound stage at different positions as the engine operates at various RPMs and load. In order to control the sound stage width, a phase difference can be introduced between a first audio channel (e.g., a left audio channel) and second audio channel (e.g., a right audio channel). In the most general case, the phase difference can be introduced per harmonic per RPM. In this approach, the phase difference can be adjusted such that a vehicle occupant will perceive each harmonic signal to have a particular width. This width can be adjusted independently per RPM regions by tuning the per harmonic phase difference.

Abstract: Methods, systems, and apparatuses are described for configuring television speakers. A television may be configured to operate as a center channel speaker for an audio system. Television speakers may be calibrated according to other speakers utilized by the audio system. The handling of HDMI commands by the television may modified such that the television speakers and the audio system speakers concurrently produce sound.

Abstract: Aspects of the disclosure provide an amplification circuit. The amplification circuit includes an amplifier and a first variable resistive device. The amplifier includes first and second input nodes configured to receive the first and second input electrical signals and first and second output nodes configured to output first and second output electrical signals having amplified voltages relative to the first and second input electrical signals. The first variable resistive device is electrically coupled to the second input node of the amplifier. The first variable resistive device being configured to have a selected resistance value to compensate for a direct current (DC) voltage difference between the first and second input electrical signals based on a DC voltage difference between first and second output electrical signals that are output from the first and second output nodes of the amplifier.

Abstract: A system and method for acoustically reproducing Q electrical audio signals and establishing N sound zones is provided. Reception sound signals occur that provide an individual pattern of the reproduced and transmitted Q electrical audio signals. The method includes processing the Q electrical audio signals to provide K processed electrical audio signals and converting the K processed electrical audio signals into corresponding K acoustic audio signals with K groups of loudspeakers that are arranged at positions separate from each other and within or adjacent to the N sound zones. The method further includes monitoring a position of a listener's head relative to a reference listening position. Each of the K acoustic audio signals is transferred according to a transfer matrix from each of the K groups of loudspeakers to each of the N sound zones to contribute to the corresponding reception sound signals.

Abstract: The disclosed acoustic device and method of using the same allow perception of a bright, clear sound. In an acoustic device (1) for transmitting sound to a user through vibration conduction by contacting a vibrating body (10a) to a human auricle, when a measurement system (10), provided with an ear model (50) including an artificial auricle (51) and an artificial external ear canal (53) and with a microphone (62) that measures air-conducted sound in the artificial external ear canal (53), measures the air-conducted sound upon the acoustic device (1) outputting a fundamental frequency at a predetermined frequency in an audible frequency band while placed in contact with the ear model (50), three or more harmonics at or above the sixth harmonic and having a volume exceeding a volume 45 dB below the volume of the fundamental frequency are measured.

Abstract: An apparatus including a sound transducer; and a housing having the sound transducer connected thereto. The housing forms a substantially sealed air space back cavity acoustically coupled to the sound transducer. The housing includes a housing member having a first dividing structure located in the back cavity to connect two adjacent air mass sections of the back cavity, where the dividing structure includes at least one aperture to permit travel of sound waves through the at least one aperture between the air mass sections.

Abstract: An audio system of a vehicle includes a mode module that sets a mode signal to a first mode when a vehicle speed is greater than a predetermined speed and a longitudinal acceleration of the vehicle is less than a predetermined acceleration. The predetermined acceleration is less than zero and the predetermined speed is greater than zero. A sound control module, when the mode signal is in the first mode, selectively sets audio characteristics for a deceleration event of the vehicle based on randomization parameters. An audio driver module, based on the audio characteristics, applies power to speakers to output sound within a passenger cabin of the vehicle.

Abstract: A motor vehicle includes a rear bumper and a microphone. The rear bumper includes an internal cavity that is open towards a front portion of the vehicle. The microphone includes a sound pickup component arranged to acquire a sound signal generated by at least one tire of the vehicle, each of which includes at least one audible wear indicator. The sound pickup component of the microphone is attached to a wall of the rear bumper, and is positioned at a transverse level located between rear tires of the vehicle, preferably in the internal cavity.

Abstract: Systems and methods are disclosed herein that may be implemented to use multiple light sources to visually display non-graphics positional audio information based on multi-channel audio information produced by a computer application executing on a processor of an information handling system. The multiple light sources may be operated separately and independently from a user's computer display device, and the non-graphics positional audio information may be separate and different from any visual graphics data that is generated by the computer application or information handling system.

Abstract: To realize active control ground that sets inverted output of an amplification circuit to ground with simple configuration. A DAP 1 comprises a positive side DAC 7 that D/A-converts digital audio data into analog audio data, a positive side amplification circuit 9 that amplifies the analog audio data that the DAC 7 D/A-converts, a negative side DAC 8 that D/A-converts the digital audio data into the analog audio data, and a negative side amplification circuit 10 that amplifies the analog audio data that the DAC 8 D/A-converts, and a CPU 2. The CPU 2 mutes the DAC 8 in case of an ACG mode that sets output of the amplification circuit 10 to ground.

Abstract: Streaming audio is adjusted within one or more real-time digital signal processors (DSPs) by entering audio adjustment parameters using a smart phone application on a Bluetooth® enabled smart phone, receiving streaming audio from a Cloud server, and transmitting the adjustment parameters and streaming audio to a Bluetooth® chip in an audio system. The audio adjustment parameters and streaming audio then enter two real-time DSPs where the streaming audio is adjusted according to the audio adjustment parameters and then sent to amplifiers and/or transceivers. The application enables entry of lighting parameters for control of a plurality of RGB LEDS and one or more LED fixtures. The lighting parameters are transmitted to the Bluetooth® chip and adjustments are made, within the Bluetooth® chip, to the lighting control signals based on the lighting parameters, the streaming audio, and by adjusted streaming audio provided by at least one transceiver.

Abstract: A filter for equalizing the frequency response of loudspeaker systems includes at least one band filter section (11) comprised an n-order high boost or cut shelving fitter (13) having a break point frequency, ?1, and an n-order low boost or cut shelving filter (15) having a break point frequency, ?2, wherein ?1<?2. The order, n, of at least one, and preferably both of the shelving filters of the band filter sections can be selected for adjusting the slope of the shelving filter at one or both of its break point frequencies. The high and low n-order shelving filters forming the band filter sections have substantially the same gain and produce a resultant band gain for the band filter section. Gain correction is provided for the selectable n-order high shelving filter and n-order low shelving filter for correcting the resultant band gain to a base gain level.

Abstract: An apparatus configured to: determine a viewing angle associated with at least one apparatus camera; determine from at least two audio signals at least one audio source orientation relative to an apparatus; and generate at least one spatial filter including at least a first orientation range associated with the viewing angle and a second orientation range relative to the apparatus.

Abstract: To reduce signal output and wiring to a D/A converter (DAC). A DAP 1 comprises a DAC 7 that D/A-converts LR 2 channels digital audio data into LR 2 channels analog audio data, an amplification circuit 9 that amplifies the LR 2 channels analog audio data that the DAC 7 D/A-converts, a DAC 8 that D/A-converts the LR 2 channels digital audio data into the LR 2 channels analog audio data, and an amplification circuit 10 that amplifies inverted LR 2 channels analog audio data that the LR 2 channels analog audio data that the DAC 8 D/A-converts is inverted.

Abstract: An electric fader drive unit includes a drive portion, a fader position control portion, and an electric fader control portion. The fader position control portion detects a distance between a current position of the electric fader and a target position, indicates a high speed movement mode when the distance is not less than a predetermined value, and indicates a silent movement mode when the distance is less than the predetermined value. The electric fader control portion controls the drive portion to change the drive power to silent drive power not less than the minimum drive power that is the lowest drive power for moving the electric fader when the fader position control portion indicates the silent movement mode, and controls the drive portion to change the drive power to base drive power more than the silent drive power when the fader position control position indicates the high speed movement mode.

Abstract: The present disclosure provides methods, devices and computer program products for encoding and decoding of a vector of parameters in an audio coding system. The disclosure further relates to a method and apparatus for reconstructing an audio object in an audio decoding system. According to the disclosure, a modulo differential approach for coding and encoding a vector of a non-periodic quantity may improve the coding efficiency and provide encoders and decoders with less memory requirements. Moreover, an efficient method for encoding and decoding a sparse matrix is provided.