Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

a question about microphone spacing in BSS algorithms

Status
Not open for further replies.

vahidkh6222

Full Member level 2
Joined
Oct 11, 2005
Messages
137
Helped
6
Reputation
12
Reaction score
0
Trophy points
1,296
Activity points
2,419
proper mic spacing

During my review of BSS algorithm I've realized that there exist two completely different microphone spacing approachs.
- in freq domain BSS algorithms, they often use microphone spacings in the order of few centimeters (4-5-10 cm). I think that's reasonable if we consider the phase ambiguity constraints for higher frequencies (d<lambda/2);

- but in the time domain BSS methods, they usually choose longer distances between MICs. I even saw methods with 1m microphone spacing. I can not rationalize this selection. I cant understand the reason of this neglection about fundamental microphone spacing rule (d<lambda/2).

Please, help me to understand...

thanks in advance
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top