A vehicle conversation information output device is included in a vehicle conversation information output system configured to output conversation information to a driver driving a vehicle, the conversation information being created according to a predefined personality, the device including: a receiving part that obtains usage information related to how the vehicle has been used by the driver; a modifying part that modifies the predefined personality based on the usage information obtained by the receiving part; a creating part that creates conversation information to be output to the driver based on the personality modified by the modifying part; and an outputting part that outputs the conversation information created by the creating part to the driver.

Disclosed is a head-up display device. The head-up display device includes: a host (1), configured to send an image signal to a display device (2); a display device (2) provided at one side of the host (1), configured to display the image signal; a curved semi-transparent reflecting screen (3) provided in a position opposite to the display device (2), configured to receive an image displayed by the display device (2), and display the image on the other side of the semi-transparent reflecting screen (3) at one side of the host (1), wherein the semi-transparent reflecting screen (3) is further configured to display the image after ghost is removed; a voice interaction unit (20) pre-configured in the host (1), and a driver detection device (12) mounted in the host (1). The head-up display device supports voice interaction throughout a process, driver real-time monitoring, and advance warning, and has good display effect.

Implementations are directed to determining an audio delay, of a computing device, by causing an audio data stream to be transmitted to the computing device via a wireless communication channel. The computing device causes audio output generated using the audio data stream to be rendered via speaker(s). The rendered audio output is captured via microphone(s), and the audio delay determined by comparing the captured audio output with the audio data stream. A delay audio segment can be appended to an additional audio data stream transmitted to the computing device, where the length of the delay audio segment is determined using the audio delay. A noise reduction technique can additionally or alternatively be adapted based on the audio delay. Implementations are additionally or alternatively directed to determining if an audio data stream transmitted to a computing device for rendering through speaker(s) driven by the computing device—is actually being rendered.

A digital assistant is determined from a plurality of digital assistants in a vehicle for performing a vehicle function. A speech message of a vehicle occupant is received via a digital assistant from the plurality of digital assistants in the vehicle. A command of the speech message is ascertained via the digital assistant. An execution authorization of the vehicle occupant is determined for the command of the speech message via the digital assistant. If the vehicle occupant has an execution authorization for the command of the speech message, command of the speech message is executed via the digital assistant in order perform the vehicle function in the vehicle.

This application discloses a voice recognition method, a voice recognition apparatus, an electronic device and a computer readable storage medium, and relates to the field of voice recognition technology. A specific implementation is: performing a latency estimation according to a first microphone signal and a first reference signal in a preset time period to obtain a latency value; acquiring a system audio signal, and processing the system audio signal by using the latency value to obtain a second reference signal; performing de-noising processing on a collected second microphone signal according to the second reference signal, to obtain a to-be-recognized voice signal; and performing recognition on the to-be-recognized voice signal.

The present disclosure discloses a noise reduction method and apparatus based on in-vehicle sound zones and a medium. The method includes: determining, based on voice signals obtained by sound zones, a target sound zone to which a voice signal waking up a vehicle-mounted terminal belongs, in which each sound zone has a corresponding noise reduction module; and sending a noise reduction termination instruction to noise reduction modules of sound zones other than the target sound zone, in which the noise reduction termination instruction is configured to instruct the noise reduction modules of the sound zones other than the target sound zone to terminate noise reduction algorithms in a process of performing voice interaction for the target sound zone.

A vehicle includes a first input device that receives a speech signal; a second input device that receives user input, vehicle state information, driving environment information, or user information; a storage that stores text corresponding to each of a plurality of speech signals and information about a standard language corresponding to each text; and a dialogue system that converts the received speech signal into text of the standard language based on the information stored in the storage, to identify an intention of the user's utterance based on the converted text, to determine the user's context based on at least one information received by the second input device, to determine an action corresponding to the identified intention of the user's utterance and the determined user's context, to generate a response corresponding to the determined action, and to output the generated response.

An operation assistance device for vehicles includes a human relationship analysis unit, a human relationship storage unit, and an assistance information determination unit. The operation assistance device obtains recommendation information suitable for an occupant composition including human relationships and provides the recommendation information for assisting a vehicle operation. The analysis unit acquires conversation voice data of a plurality of persons to specify speakers, analyzes the acquired data for each specified speaker to extract a predetermined keyword, specifies a speech pattern of each speaker based on the keyword, specifies conversation content based on the acquired data, and analyzes and quantifies direct human relationships among the persons from the specified speech pattern and conversation content. The storage unit preliminarily accumulates the direct human relationships. The determination unit specifies a plurality of occupants on board a vehicle and determines, based on the accumulated direct human relationships, assistance information for the vehicle operation.

Provided is an information transmission method including: a type determination step of determining a type of information to be transmitted to a driver of a vehicle when the driver is driving the vehicle; a sound output step of outputting the information in the form of sound; and a display step of operating a display device to display an illumination pattern as a function of the determined type.

Techniques are described for detecting a conversation between at least two people, and for reducing noise during the conversation. In certain embodiments, at least one speech metric is generated based on spectral analysis of an audio signal and is used to determine that the audio signal represents speech from a first person. Responsive to determining that the speech is part of a conversation between the first person and a second person an operating state of a device in a physical environment is adjusted such that a volume level of sound contributed by or associated with the device is reduced. The sound contributed by or associated with the device corresponds to noise, at least for the duration of the conversation. Therefore, reducing the volume level of sound contributed by or associated with the device reduces the overall noise level in the environment, resulting in a reduction in conversational effort.