9 results about "Hearing range" patented technology

A system (300) and a method for improving hearing are described. In one embodiment of the system (300), a programming interface (16) is configured to communicate with a device. The system (300) analyzes, using a loudspeaker and a user interface (16) associated with the device, the left ear—and, separately, the right ear—of a patient at a frequency selected incrementally within a frequency range. The detected tinnitus frequencies are retested to further identify them. The system (300) then determines the range of hearing affected by tinnitus in the left and right ears.

The utility model provides a centrifugal fan, including volute still include: impeller, the impeller is provided with at least two groups, and at least two groups impeller follow the axial direction of volute, the middle disc is arranged between two groups of adjacent impeller, two groups of adjacent impeller are separated through the middle disc, and the import of middle disc is linked together with the import of volute, each group impeller is provided with several blades, and several blades are arrayed around the axial direction of volute, and the blade of two groups of adjacent impeller is staggered along the projection direction of blade. Through the mode for increasing the number of blade, increase the times of cutting the airflow that enters the volute, thereby improved the frequency of rotation noise, namely BPF noise, make BPF noise frequency far away from the hearing range of human ear, and then reduce the situation that the user hears the rotation noise. In addition, the blade that interlaces can break the shedding vortex that the blade tail edge produces, reduces the broadband noise of fan.

Embodiments of the present disclosure disclose an audio processing method, device, electronic equipment and computer readable medium. A specific implementation of the method comprises: obtaining an audio discrete sequence corresponding to a target audio, a sampling bit number and a sampling number; performing filtering processing on the audio discrete sequence according to a target hearing range to obtain a filtered discrete sequence; performing multiple sampling on the filtered discrete sequence according to the sampling number to obtain a set of sampled discrete sequences; for each sampled discrete sequence, performing pulse value conversion on each sampling value in the sampled discrete sequence according to the sampling bit number to generate a pulse value and obtain a pulse value signal; and inputting the obtained set of pulse value signals into a first audio processing model based on a pulse neural network to obtain first audio processing information. The implementation can realize pulse sequencing of audio on the basis of effectively capturing and representing feature information in an audio signal, so as to accurately generate audio processing information subsequently.

The embodiment of the invention provides an auditory control method and device of a virtual character, electronic equipment and a storage medium. The method comprises the following steps: determining auditory control parameters of a virtual character; determining a corresponding sound effect set according to the auditory control parameter; and controlling to play the sound effect set. According to the method disclosed by the invention, the game system can dynamically switch different sound effect sets according to the auditory capability state of the virtual character, so that accurate simulation of the hearing range of the virtual character is technically realized. Compared with a traditional method, according to the scheme, a global audio scale does not need to be modified, system resource consumption and implementation complexity are reduced, meanwhile, through fine configuration of the sound effect set, auditory experience in the game is highly consistent with the ability state of the virtual character, the immersion and interaction experience of the game are improved, and user experience is improved. And more real auditory feedback is provided for players.

An equine audio system for modulating sound input to a horse comprises anatomically-shaped earbuds with speakers configured to fit securely in the horse's ears. A digital audio processor receives an input audio signal, applies signal processing to generate an output audio signal optimized for an equine auditory system, and transmits the output audio signal to the speakers. The signal processing includes noise cancellation, frequency equalization to emphasize frequencies within the equine hearing range, and dynamic range compression. The earbuds attenuate ambient noise and may include acoustically optimized sound tubes. The system may further include a wireless receiver, a remote control device, an accelerometer for motion-based audio adjustment, and sudden loud noise detection and gradual attenuation capabilities.

The invention relates to the technical field of communication, and further relates to an encrypted communication method and device and an interphone. The method comprises the following steps: receiving an audio signal input by a user; processing the audio signal into a corresponding infrasound signal or an ultrasonic signal according to the frequency of the audio signal; and sending the infrasound signal or the ultrasonic signal to a second terminal, so that the second terminal restores the infrasound signal or the ultrasonic signal into the audio signal and plays the audio signal. According to the method, an audio signal is converted into an electronic signal, frequency increasing or frequency reducing processing is carried out, ultrasonic or infrasound signals are generated, and the signals exceed the normal hearing range of human beings and are safely transmitted through radio waves. After receiving the signals, the second terminal checks the frequency of the signals and confirms whether the signals are effective encrypted signals, and if yes, the signals are restored to original audio signals to be played. And the privacy and security of communication are enhanced.

The invention discloses a power system and an alarm control method and device thereof, and relates to the technical field of power systems, and the method comprises the steps: controlling a drive board to enter a vibration alarm mode to drive a motor to give an alarm if a fault is detected. According to the application, 200Hz-2000Hz vibration generated by the motor is used as an alarm signal, the frequency is in a human hearing range, independent alarm devices such as a buzzer and a driving circuit thereof can be effectively replaced, the material cost is reduced, and the circuit layout is simplified. Different fault types are mapped to different vibration modes, so that a user can directly identify fault properties through alarm characteristic differences, and intuitive and rapid fault diagnosis is realized. Meanwhile, the system adopts a layered response mechanism to distinguish two types of faults in power-on initialization and operation, so that false alarms are effectively avoided. In addition, the method only depends on existing hardware, is universal for different types of brushless motor driving boards, is suitable for small-sized and low-cost products, and does not need to increase extra hardware overhead.

The invention is suitable for the technical field of atomization equipment, and provides a temperature detection method, a heating non-combustion atomization device and a computer readable storage medium, the temperature detection method comprises the steps that the resistance value of a heating body is measured and recorded during the low level period of a pulse signal, and the pulse signal is used for controlling heating of the heating body; and calculating the temperature of the heating body by using the recorded resistance value of the heating body. In the low-level period of the pulse signal, the heating body is not heated, the resistance value of the heating body can be accurately measured, meanwhile, a heating circuit does not need to be additionally closed, and therefore noise is reduced. Besides, by setting the frequency of the pulse signal, the noise generated by the pulse signal can exceed the hearing range of human ears, so that the influence of the noise on the user is reduced.

A communication device includes a D / A converter that generates an audio signal that is output as audio from a speaker, and an A / D converter that generates an input audio signal from audio collected by a microphone. The communication device generates a diagnostic audio signal that is output as diagnostic audio at a frequency that is outside of human hearing range. When the diagnostic audio is output from the speaker, the communication device generates an input audio signal based on the audio collected by the microphone and determines whether an abnormality has occurred based on a comparison of the original diagnostic audio signal with the input audio signal generated based on the diagnostic audio collected by the microphone.