57results about How to "Implement noise reduction processing" patented technology

Embodiments of the present disclosure disclose an audio noise reduction transmission method, device, electronic equipment, and computer-readable medium. A specific implementation of the method includes: acquiring the audio signal collected by the speech collection device; performing time-domain conversion processing on the above-mentioned audio signal to generate a time-domain waveform; performing spectrum conversion processing on the above-mentioned time-domain waveform to obtain an audio frequency spectrum; The audio spectrum is subjected to spectral feature extraction processing to generate spectral feature information; the above spectral feature information is input to a pre-trained audio extraction network to obtain a spectrum extraction result; the above spectral extraction result is subjected to noise reduction processing to obtain a noise-reduced audio signal. This embodiment implements noise reduction processing on audio, improves the noise suppression effect, and thus improves the audio transmission efficiency of the earphone.

The present invention provides a motor and a method for controlling the motor for noise reduction. The motor includes: a base, a stator iron core and at least two connecting pieces; each of the connecting pieces is connected to the base and the stator iron core respectively. The stator iron core is fixed in the base; the rigidity of each of the connecting pieces is adjustable, and the adjustment is realized by the external force acting on any one of the connecting pieces. In this solution, by adjusting the rigidity of the connecting piece of the motor by external force, the noise reduction processing of the motor can be realized, and the realization method is simpler.

The invention relates to a gear shifting inhaul cable noise reduction device which comprises a shell, a sealed part, a sliding part and a second connection part. A containing cavity is formed in the shell, and the end, in the axial direction, of the shell is fixedly connected with a first connection part. The sealed part is arranged in the containing cavity, and a sealed cavity filled with gas isformed in the sealed part. The sliding part is arranged in the sealed cavity so that the sealed cavity can be divided in the axial direction of the shell, and can slide in the axial direction of the shell, and through communicating holes are formed in the sliding part. The second connection part extends from the outer portion of the side, opposite to the first connection part, of the shell into the sealed cavity and is fixedly connected with the sliding part. By arranging the sealed part, when noise of a transmission is transferred through a gear shifting inhaul cable, the sliding part slidesin the sealed cavity due to the fact that the first connection part and the second connection part are connected with the inhaul cable, gas flows between the portions, on the two sides of the slidingpart, of the sealed cavity through the communicating holes, and then, noise reduction treatment on the noise is achieved.