公开(公告)号：US09966084B2

公开(公告)日：2018-05-08

申请号：US15213150

申请日：2016-07-18

Applicant: Xiaomi Inc.

Inventor： Runyu Shi ,  Chiafu Yen ,  Hui Du

IPC: G10L19/20 ,  G10L19/16 ,  H04S3/00 ,  H04R3/00

CPC classification number: G10L19/20 ,  G10L19/167 ,  H04R3/005 ,  H04S3/008 ,  H04S2400/11 ,  H04S2400/15

Abstract: A method and a device for achieving object audio recording and an electronic apparatus are disclosed. The method includes performing a sound collection operation via a plurality of microphones simultaneously to obtain a mixed sound signal. The method also includes identifying the number of sound sources and position information of each sound source and separating out an object sound signal corresponding to each sound source from the mixed sound signal according to the mixed sound signal and set position information of each microphone. The method further includes combining the position information and the object sound signal of individual sound sources to obtain audio data in an object audio format.

公开(公告)号：US09930467B2

公开(公告)日：2018-03-27

申请号：US15058673

申请日：2016-03-02

Applicant: Xiaomi Inc.

Inventor： Runyu Shi ,  Dawei Xiong ,  Weishan Li

IPC: H04R5/00 ,  H04R3/00 ,  H04R1/40 ,  H04S5/00 ,  H04S7/00

CPC classification number: H04S5/005 ,  H04R1/326 ,  H04R3/005 ,  H04R2430/20 ,  H04R2499/11 ,  H04S7/307 ,  H04S2400/01 ,  H04S2400/05 ,  H04S2400/07 ,  H04S2400/09 ,  H04S2400/13 ,  H04S2400/15

Abstract: A sound recording method and device are provided in the field of multimedia processing. The method is applied in a mobile terminal including three microphones, including: acquiring three channels of sound signals collected by the three microphones; calculating a central channel signal, a left channel signal, a right channel signal, a rear left channel signal and a rear right channel signal in a multi-channel surround audio system according to the three channels of sound signals; calculating a bass channel signal in the multi-channel surround audio system according to the three channels of sound signals; and combining the above signals to obtain a sound signal of the multi-channel surround audio system.