Hello, all I have designed an array of four microphones to get B-format signal. The coordinates of mics are mic1 (-d/2,0), mic2 (d/2,0), mic3 (0, d/2), mic4 (0,-d/2),and d is about 18mm.Every opposite pair can be composed into a first order differential array and get a pattern of figure 8. So the X component can be got from mic1 and mic2, the Y component can be get from mic3 and mic4. The W component equals to the mean of signals from four mics. Then I decoded them to get the feeding signal for four loudspeakers, and used HRTFs to get the left and right signal for headphone.
1. Furthermore, the experiment is made that a person was walking around the array and say something in an office. After processed by the method above, I find there is a problem that the speech sounds like a person talking and moving around my head but very near to my ears and head. What is the main reasons for this problem? Is there any suggestion to make it sounds much further from the ears and head. 2. Do I need to add the early reflection and late reverberation to the four loudspeakers? In my understanding, the recording signal of array has included the reflection and late reverberation signal of the office. If add another reflection signal to the feeding signal of loudspeakers, they will contain two kind of reflection signal. Is my understanding right? Apologize for this simple question. Thanks advanced. ________________________________ 华为技术有限公司 Huawei Technologies Co., Ltd. [Company_logo] Phone: Fax: Mobile: Email: 地址：深圳市龙岗区坂田华为基地 邮编：518129 Huawei Technologies Co., Ltd. Bantian, Longgang District,Shenzhen 518129, P.R.China http://www.huawei.com ________________________________ 本邮件及其附件含有华为公司的保密信息，仅限于发送给上面地址中列出的个人或群组。禁 止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、或散发）本邮件中 的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本邮件！ This e-mail and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20130106/0a009956/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 6737 bytes Desc: image001.jpg URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20130106/0a009956/attachment.jpg> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
