Robot Baby
Robot Baby
(OP)
The problem is that I have six microphones to record simultaneously and transfer that to a PC at a sampling rate of 22-25 KHz. The resolution required is 12-16 bits. The microphones will be used to determine talker location. The system described will be tethered to a Babies head. It tracks talker location. At the same time record complete audio and video.
The application required is similar to video Tele-conferencing systems following talker location. I have seen a similar system in a system called limelight.
The interface from the micro-controller or DSP should be able to transfer approximately 2 Mbit/s, and be a small implementation.
I am looking for system block diagrams of such systems. So I can get an idea of what is required for the hardware, where can I find such information.
It is important!
Mahesh
The application required is similar to video Tele-conferencing systems following talker location. I have seen a similar system in a system called limelight.
The interface from the micro-controller or DSP should be able to transfer approximately 2 Mbit/s, and be a small implementation.
I am looking for system block diagrams of such systems. So I can get an idea of what is required for the hardware, where can I find such information.
It is important!
Mahesh





RE: Robot Baby
The sampling rate of 8-10KHz should be enough,too.
Don't forget anti-aliasing filter !!!
<nbucska@pcperipherals.com>
RE: Robot Baby
What does an anitaliasing filter do, I’ll read on it but I would like a sentence on it please!
Thus I have to find the right hardware for this interface problem?
Thank you
Mahesh
RE: Robot Baby
so you use 6KHz sample rate. If there is e.g. a 7 KHz sound,
you multiply it with 6KHz, generating 1 and 13 KHz.
(check sin(A)* sin(B) !!)
The 13 KHz is outside of the bandwidt but the 1KHz is right
in the middle -- so you must filter out anything >>3KHz...
<nbucska@pcperipherals.com>