AnsweredAssumed Answered

Ram Address Exceeds: 8192

Question asked by drzerog on Jul 18, 2011
Latest reply on Jul 25, 2011 by BrettG

Using the ADAU1442, we have multiple microphone lines coming in operating in an extremely noisy environment. The completely undocumented "Noise Reduction" block in SigmaStudio 3.4 under ADI Algorithms -> Noise Removal does quite a good job of removing this noise.


Unfortunately, when I add 1 of these blocks, it uses 2272 bytes of Modulo RAM. I can only use 3 of these blocks, using a total of 84% of my Modulo Data Ram.


I try to add a fourth block, I get the message

Ram Address Exceeds: 8192

For assistance, please contact ADI


Which raises hopes that this can be solved?


Unfortunately, I have up to 8 separate lines which are incoming which all need this treatment.


Also, is there any more documentation on the Noise Removal Block?