AAC Microtech (Changzhou) Co., Ltd.

Provided are an audio control method, an audio control device, and an in-vehicle sound system. The audio control method includes: acquiring an initial auditory model of a target user in an in-vehicle acoustic environment and an ideal auditory model of the target user in a reference acoustic environment; fitting the ideal auditory model and the initial auditory model based on predetermined fitting constraints to obtain target acoustic characteristic parameters corresponding to an acoustic signal output by each respective target speaker of the plurality of target speakers; and generating a target acoustic transfer function of the respective target speaker to the target user based on the target acoustic characteristic parameters, and updating the target acoustic transfer function to a digital filter of the respective target speaker.

Disclosed are a method, an apparatus, and a system for optimizing an in-cabin sound field, and a readable storage medium, which are applied to a sound control system of a target vehicle. The method includes: obtaining, upon detecting that a warning object appears in a caution zone corresponding to the target vehicle, a relative position parameter between the warning object in the caution zone and the target vehicle; reconstructing a sound field in the cabin of the target vehicle based on the relative position parameter to obtain a corresponding target chime source file; and outputting a corresponding audio control signal to each of the loudspeakers based on the target chime source file. Through implementation of the disclosure, an in-cabin passenger may easily know the orientation and movement information of a warning object via a 3D chime emitted by the sound control system.

A headrest for providing independent sound zones includes a headrest body and a sound radiation system. The sound radiation system includes an acoustic transducer and an acoustic dipole. The acoustic transducer is configured to radiate sound towards a designated area. The acoustic dipole includes a first housing, and a first sound emitting unit and a second sound emitting unit. There is a phase difference between the sounds radiated by the first sound emitting unit and the second sound emitting unit. The acoustic transducer and the acoustic dipole work together, allowing vector superposition of sound in the target area outside the designated area, maximizing the sound pressure level difference between the designated area and the target area, reducing sound leakage of the headrest audio, achieving better sound zoning or sound isolation effect, and improving user experience.

Provided is a method for optimizing in-vehicle sound field. In the method, firstly calculates the actual acoustic response of each seat in the cabin to the preset audio signal played by each speaker, and calculates ideal acoustic response of the preset audio signal at the best listening position in the listening room. Then, based on that the actual acoustic response is consistent with the ideal acoustic response, the sound field of each seat in the cabin is reconstructed to obtain the sound field reconstruction result of each seat, so that the sound system controls each speaker to perform the sound reproduction of the audio signal to be played based on the sound field reconstruction result. Therefore, the actual acoustic response at each seat is consistent with the ideal acoustic response of the listening room, thus ensuring the acoustic experience of the passengers at each seat in the cabin.

The present application provides an in-vehicle adaptive sound playback method, a sound system, and a domain controller. The present application utilizes a domain controller to obtain environmental data indicative of the environment of the cockpit, analyze sound playback parameters corresponding to the environmental data, and then regulate the physical state of each speaker according to the physical state parameters, process the audio signals to be played back according to the sound effect parameters, and finally transmit the processed target audio signal to each speaker regulated, and the loudspeakers carry out sound playback of the target audio signal. It is understood that when the environment of the cockpit changes, the sound playback parameters will also change accordingly, i.e., the sound playback has strong adaptability to different cockpit environments, and the optimal sound playback effect can be obtained under different cockpit environments, thereby bringing a preferred acoustic experience for the user.

Provided are a method and an apparatus for controlling power consumption of a speaker, a storage medium, and an electronic device. The method includes: acquiring environment state information through an environment information acquisition device; analyzing the environment state information through an environment state analysis module to generate an environment state result; receiving a mode selection result input by a user; generating a power consumption control parameter through a power consumption parameter calculation module according to the environment state result and the mode selection result; and controlling power consumption of a speaker through a power consumption suppression module according to the power consumption control parameter. In this way, the power consumption of the speaker can be dynamically controlled, thereby further saving the power consumption.

Provided is a method and system of sound processing for a mobile terminal based on hand-holding and orientation detection. The method includes: detecting whether the mobile terminal is held by hand; in response to determination of the mobile terminal being held by hand, detecting whether it is one-hand holding or two-hand holding; in response to determination of one-hand holding, detecting whether it is landscape holding or portrait holding, and conducting corresponding frequency response equalization and stereo processing control; and in response to determination of two-hand holding, determining whether the mobile terminal is in an interaction procedure, and conducting corresponding frequency response equalization and stereo processing control. Compared with the related art, the problem that frequency response of the speakers of existing mobile terminals significantly changes with different holding postures that may eventually lead to poor sound quality is solved, to provide more consistent speaker sound quality in real life.

The application relates to a sound quality output method. The method includes: obtaining the current volume level input by the user; determine the audio signal gain difference between the current volume level and the baseline volume level according to the current volume level and the preset baseline volume level, determining an equal loudness curve difference between the current volume level and the baseline volume level according to the audio signal gain difference, and the current volume level and the baseline volume level, determining the audio quality response curve corresponding to the current volume level according to the equal loudness curve difference and the pre-stored audio quality response curve corresponding to the baseline volume level, determining the output signal parameters of multiple audio output channels according to the audio quality response curve corresponding to the current volume level. The application optimizes the sound quality effect and enhances acoustic experience.

Provided are a method and an apparatus for controlling power consumption of a speaker, a storage medium, and an electronic device. The method includes: acquiring environment state information through an environment information acquisition device; analyzing the environment state information through an environment state analysis module to generate an environment state result; receiving a mode selection result input by a user; generating a power consumption control parameter through a power consumption parameter calculation module according to the environment state result and the mode selection result; and controlling power consumption of a speaker through a power consumption suppression module according to the power consumption control parameter. In this way, the power consumption of the speaker can be dynamically controlled, thereby further saving the power consumption.

Provided is a method and system of sound processing for a mobile terminal based on hand-holding and orientation detection. The method includes: detecting whether the mobile terminal is held by hand; in response to determination of the mobile terminal being held by hand, detecting whether it is one-hand holding or two-hand holding; in response to determination of one-hand holding, detecting whether it is landscape holding or portrait holding, and conducting corresponding frequency response equalization and stereo processing control; and in response to determination of two-hand holding, determining whether the mobile terminal is in an interaction procedure, and conducting corresponding frequency response equalization and stereo processing control. Compared with the related art, the problem that frequency response of the speakers of existing mobile terminals significantly changes with different holding postures that may eventually lead to poor sound quality is solved, to provide more consistent speaker sound quality in real life.