cannot found ANC filters in sigmastudio schematic filter sections
i'd like to develop my ANC algorithm on adau1777,however ,i noticed that there is a few filters in adau1777 schematic filters section.
is there any solution to make me finish my ANC project...
i noticed that the algorithm designer can write my algorithm,however,not support adau1777...
please help me out.~thks
software
4.7
Integrated/Special Purpose A/D Converters
adau1777
Audio CODECs
Hello Novio,
I do not know if I fully understand your question. The DSP core of this part is a bi-quad filter engine so all it does is process 32 biquad filters VERY fast! We setup the coefficients for these filters to be in multiple banks with the idea that another system processor is monitoring the quality of the ANC and recalculating the filter coefficients. Then it updates the coefficients in an inactive bank. Then once all the coefficients are written it switches over to the new coefficients to prevent any filters from becoming unstable.
What algorithm designer are you talking about? This is one of the things I do not understand in your post.
Dave T
Hello Dave,
Very glad to get your reply.
I may not have expressed myself very well. What I want to know is whether the filter part of the ADAU1777 DSP has only PEQ or some simple algorithms, but no MFxLMS-type ANC algorithms that I am hoping for. I want to know if this device does not support the algorithm or if it has not yet been implemented. If I want to use the ADAU1777 to implement ANC algorithms, what do I need to do?
btw, algorithm designer what i mentioned is the tool of SigmaStudio+
Novio
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