4 results about "Interaural time difference" patented technology

The invention provides a hearing aid wearing tightness detection method based on two-channel ultrasonic phase difference, and relates to the technical field of hearing aid detection, and the method comprises the steps: controlling a first ultrasonic transmitting transducer and a second ultrasonic transmitting transducer which are disposed at different positions of a hearing aid housing, and transmitting an ultrasonic signal subjected to orthogonal coding; receiving the mixed echo signal through an ultrasonic receiving transducer, and performing signal separation by using an adaptive filter matched with the coding mode to obtain a first echo signal corresponding to the first transmitting transducer and a second echo signal corresponding to the second transmitting transducer; inputting the extracted phase information, time information and amplitude information into a pre-trained wearing state classification model, and outputting a classification result of the current wearing state; and according to a classification result, triggering a self-adaptive prompt action matched with the state level. According to the invention, high-precision, multi-dimensional and real-time online monitoring and intelligent feedback of the wearing state of the hearing aid are realized.

A cochlear and nerve stimulation system comprises a signal input to receive an audio input signal, a multiple channel microphone input to receive multiple channel ambient noise signals, and a multiple channel cochlear converter coupled to the signal input to produce multiple channel surround sound cochlear and nerve stimulation signals based on the audio input signal. The stimulation signals include one or both of interaural level differences and interaural time differences. A sound canceling processor is coupled between the microphone input and the cochlear converter to produce multiple channel sound canceling signals based on the ambient noise signals. Multiple channel cochlear and nerve stimulation electrodes are configured for attachment to a user and coupled to receive the multiple channel surround sound cochlear stimulation signals.

The application provides a kind of dual-channel ultrasonic phase difference hearing aid wearing tightness detection method, it is related to hearing aid detection technical field, comprising: control the first ultrasonic wave transmitting transducer and the second ultrasonic wave transmitting transducer of different positions in hearing aid shell, emit the ultrasonic wave signal through orthogonal coding;Mixed echo signal is received by ultrasonic wave receiving transducer, and signal separation is carried out using adaptive filter matched with coding mode, to obtain the first echo signal corresponding to the first transmitting transducer and the second echo signal of the second transmitting transducer;The extracted phase information, time information and amplitude information are input to the pre-trained wearing state classification model, and the classification result of current wearing state is output;According to the classification result, trigger adaptive prompt action matched with state level.The application realizes high-precision, multidimensional, real-time online monitoring and intelligent feedback of hearing aid wearing state.

Methods, systems, and storage media for generating spatial audio are disclosed. Exemplary implementations may: receive audio data from a plurality of sources; for each source of the plurality of sources, calculate a pitch similarity for the audio data; for each source of the plurality of sources, calculate an interaural level difference based at least in part on an attenuation level and / or a dynamic range of interaural time differences of the audio data; for each source of the plurality of sources, determine background audio from the audio data; for each source of the plurality of sources, attenuate the background audio of the audio data; generate spatial audio based at least in part on the audio data and the background audio; and cause output of the audio data and the background audio through an audio source.