6 results about "Digital speaker" patented technology

This application discloses an AI-based method and system for intelligent control of digital speaker sound field parameters, relating to the field of digital professional audio equipment technology. The method includes: acquiring environmental acoustic parameters and user-played content, and identifying the playback scene to obtain the playback scene; performing auditory demand analysis to obtain an auditory demand solution; obtaining an initial sound field control target, and conducting an environmental impact assessment based on the environmental acoustic parameters to obtain an optimized sound field control target; iteratively optimizing the control parameters of the digital speaker in conjunction with the playback scene to obtain an optimized control scheme, and intelligently controlling the digital speaker. This solves the technical problem that existing digital speaker sound field parameter control methods cannot dynamically adapt to complex environmental changes and personalized auditory needs, resulting in poor sound quality and a poor user experience.

The application discloses a digital loudspeaker volume control method, device, equipment and medium, relates to the loudspeaker technical field, and is used for solving the problems of quality reduction and complex manufacturing process in the prior art. The method comprises the following steps: receiving a volume adjustment instruction; determining an electric energy signal loaded to a loudspeaker unit in each quantized audio digital stream based on the volume adjustment instruction; the electric energy signal at least comprises an electric energy amplitude signal or an electric energy action time signal; adjusting sound pulse energy output by the loudspeaker unit based on the electric energy amplitude or the electric energy action time, and completing volume adjustment. The scheme realizes volume control of digital sound production based on the electric energy amplitude or the electric energy action time, does not need a digital-analog converter, and does not need multiple transducing element hardware supports. On the basis of not increasing the number of rows of transducing elements, the electric signal energy loaded to the loudspeaker unit is controlled, so that the sound pulse energy output is controlled, and digital volume adjustment is realized.

The application discloses a flat panel loudspeaker based on a digital sound production chip, and relates to the field of digital loudspeakers, and aims to solve the problems of large size, slow response, poor sound quality and insufficient bass of existing flat panel loudspeakers. A plurality of digital sound production chips are arranged on a substrate in the flat panel loudspeaker, and the digital sound production chip comprises an ASIC module and a plurality of groups of sound production pixel unit arrays. Each digital sound production chip can play the same audio; or a plurality of digital sound production chips can play one audio in combination; so that the sound quality and the sound pressure level of the flat panel loudspeaker are improved.

Sound assembly, digital speaker system and control method thereof. [Solution] A digital speaker system includes N (N≧2) sound assemblies, a mounting base with a plurality of mounting grooves, each mounting groove capable of mounting one sound assembly, and a digital audio signal input PCB board for receiving an audio signal and converting the audio signal into a digital signal capable of driving the sound assembly to produce sound. Each sound assembly includes a bracket, a magnetic circuit system mounted on the bracket, a sound-producing diaphragm connected to the bracket, and a voice coil connected to the sound-producing diaphragm. The magnetic circuit system has a magnetic gap, and the voice coil is partially inserted into the magnetic gap. An inner cavity is formed between the sound-producing diaphragm and the magnetic circuit system. An airflow channel is formed between the inner surface of each bracket of the sound assembly and the outer surface of the magnetic circuit system. The mounting base further has an airflow cavity, and each of the inner cavities communicates with the airflow cavity via a corresponding airflow channel. The digital speaker system achieves pure digital input driving and can improve bass effect.

The utility model discloses a sound reconstruction device and a digital loudspeaker. According to the sound reconstruction device, an audio input module is connected with a first end of a control module; the second end of the control module is connected with the first end of the controlled switch module, and the control module is used for converting the received analog audio signal into a digital audio signal and transmitting the digital audio signal to the controlled switch module; the second end of the controlled switch module is connected with the carrier output module, the third end of the controlled switch module is connected with the first end of the driving module, the second end of the driving module is connected with the digital loudspeaker array, and the controlled switch module is used for controlling connection and disconnection between the carrier output module and the driving module based on digital audio signals; the carrier output module is used for sending a carrier signal to the controlled switch module; and the driving module is used for controlling the digital loudspeaker array to work based on the carrier signal. According to the utility model, sound reconstruction of the digital loudspeaker array is realized on the hardware level.

This application discloses an electronic device belonging to the field of communication technology. The disclosed electronic device includes a device body and a speaker. The speaker is disposed in the device body and is a digital speaker. The digital speaker includes a driver chip, a sound-emitting part, and a receiving unit. The sound-emitting part includes multiple vibration units. The driver chip can control the working state of each vibration unit according to the target sound parameters. The driver chip can control at least one vibration unit to emit ultrasonic signals, and the receiving unit can receive the reflected ultrasonic signals.