ANC hardware selection

Hello,

I'm working on implementing an active noise control algorithm. I am currently working on an ADSP-221489 EZKIT LITE, because we had one lying around. I am quite new to these things, but I am beginning to suspect that this board and the AD1939 codec on it are not quite suited to my application. I got the algorithm to work, but I feel the system is not working as well as it could be, mainly due to latency issues. I am wondering which hardware would be better for me. I hope you can help. Below I have listed some information about my application:

- Active noise control system with adaptive controller and adaptive plant model.

- Preferred sample frequency: 8 kHz.

- 2 ADCs/input ports.

- 2 DACs/output ports.

- Low latency (currently multiple ms's)

If you need more specific details to answer my question, please let me know.

Regards,

Thijs

Parents
  • Hello Dave,

    thank you very much for your response. The AD1939 has about 1.5ms latency at 48 kHz, using the ASRCs on the ADSP-21489 to run the part at 8 kHz increases the latency by another 10ms. So it's not in the order of hunderds of ms's, but it is still much higher than I would like.

    I think both ADAU1372 and ADAU1772 could be good options to improve my system. However, I am wondering what I would need if I wanted to test if they actually perform better and by how much. I am guessing it is not possible to use these parts with the ADSP-21489 EZKIT LITE I already have?

    Thijs

Reply
  • Hello Dave,

    thank you very much for your response. The AD1939 has about 1.5ms latency at 48 kHz, using the ASRCs on the ADSP-21489 to run the part at 8 kHz increases the latency by another 10ms. So it's not in the order of hunderds of ms's, but it is still much higher than I would like.

    I think both ADAU1372 and ADAU1772 could be good options to improve my system. However, I am wondering what I would need if I wanted to test if they actually perform better and by how much. I am guessing it is not possible to use these parts with the ADSP-21489 EZKIT LITE I already have?

    Thijs

Children
No Data