TMS320C5517: Beam forming of audio preprocessing demo

Hi,

Do you have any updates?

Regards,

U-SK

Hi Rahul,

Thank you for your reply.

Please let me confirm about your advice.

Now I am running TMDSEVM5517 + PCM1864 demo following below document.

http://www.ti.com/lit/ug/tiducy1c/tiducy1c.pdf

If I use this tool, and update the filter coefficients to fix BF angle in above demo software, 

the demo can function fixed direction BF, ASNR, DRC.

Is my understanding correct?

I would like to run the demo with fixed direction BF, ASNR, DRC.

Regards,

U-SK

Hi Rahul, 

Do you have any updates?

Regards,

U-SK

Hi Rahul,

Thank you for your reply.

If I update filter coefficients, Is MSS disabled?

If no, are there any other procedure to disable MSS? 

Regards,

U-SK

Hi Rahul,

Do you have any updates?

Regards,

U-SK

Can you please clarify how many microphone you have in your setup, we have typically seen that the beam forming works best with 2+ microphones and on C55x can support upto 4. If your design is based on the C55x using PCM1864 then with incremental cost on additional microphones you can get more effective directional/beam forming data from that single direction.

Hi Rahul,

Thank you for your reply.

I am running audio-preprocessing demo.

1.Does the highlighted statement below apply to the Audio preprocessing demo?
   What exactly does "different angle" mean?
   Do I need to implement the highlighted description below when beamforming only in one fixed direction?

2. I don't know how the fixing direction changes due to the coefficient change.

    For example, when fixing in the direction of VM11 in the figure below, should I set BF angle to 150 degrees?

Sorry for lack of study...
I hope you will continue to cooperate!

Regards,

U-SK

Hi Rahul,

Thank you for your confirm.

>Can you please clarify how many microphone you have in your setup,

->Number of mics of my current setup are 4.

>we have typically seen that the beam forming works best with 2+ microphones and on C55x can support upto 4.

->I would like to run audio-preprocessing demo with 6 mics.Is it impossible?

   From my understanding, I think that the demonstration is maybe possible with 6 mics based on the contents of the following thread.

   (But the problem is not solved...)

https://e2e.ti.com/support/processors/f/791/p/855058/3190705#3190705

   Regards,

U-SK

Hi Rahul,

Do you have any updates?

Regards,

U-SK

Hi Rahul, 

Do you have any information?

Regards,

U-SK