| 摘要 |
During sound recording by a microphone, a recording device and method locate characteristics of noise by using a speaker as a second microphone to simultaneously receive sound, and then use the characteristics of noise for noise reduction of the received sound by the microphone, thereby improving the quality of sound recording. By using the speaker as a microphone to establish a microphone array with the existing microphone for noise reduction, no costs of additional microphones is required.
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