2 results about "Noise tolerance" patented technology

The invention relates to a sound signal noise reduction method and a hearing aid. The method comprises the steps that based on a sound signal collected by a microphone, an environment scene corresponding to the sound signal is recognized, a first signal-to-noise ratio and a second signal-to-noise ratio matched with the environment scene are determined, the first signal-to-noise ratio is the signal-to-noise ratio when the maximum speech recognition rate is reached after hearing-aid of a user, and the second signal-to-noise ratio is the signal-to-noise ratio when the maximum speech recognition rate is reached after hearing-aid of the user. The second signal-to-noise ratio is a signal-to-noise ratio when the user reaches a speech recognition threshold after hearing aid, and performing noise reduction processing on the sound signal based on the first signal-to-noise ratio or the second signal-to-noise ratio. By adopting the method, personalized noise reduction can be carried out according to the noise tolerance degree of the user and the environmental condition, and the noise reduction effect is effectively improved.

A method for reducing influence of noise on a signal line, a decoding circuit and a power provider are disclosed. The method includes steps of: dividing an analog signal to be decoded into levels; determining the level of the analog signal and acquiring the current level of the analog signal to be decoded to obtain a current level number; updating a highest level variable when the current level number is greater than the highest level variable; updating a lowest level variable when the current level number is smaller than the lowest level variable; and outputting an edge detection pulse and setting the highest level variable and the lowest level variable equal to the current level number when the difference between the highest level variable and the lowest level variable is greater than a noise tolerance value.