ΣSigmaStudio Ask AI Русский Log in

ADAU144x Blind Noise Reduction Algorithm

SigmaDSP & SigmaStudio Bill.PE May 16, 2012 00:00 5 replies Original on forum ↗
Subscribe
Bill.PE Question
May 16, 2012 00:00

I am evaluating which SigmaDSP to use in a new project and noticed under ADI Algorithms/Noise Reduction a block called ADI Blind Noise Reduction Algorithm. I cannot find any documentation on it. How does it work and what are the limitations?

Audio Signal Processors

adau1446

adau1442

adau1445

noise

SigmaDSP Audio Processors

Show More

Natan Reply
May 18, 2012 00:00

I have played around with this algorithm a bit and found it quite good at reducing repetitive background noise. It does add some noticeable delay to the audio path so it may not be suitable for all applications. Also when signal to noise gets worse; the recovered signal maybe distorted. It defiantly sacrifices signal quality for noise reduction in may situations. I found it fairly straightforward to implement and the variables were fairly straightforward to just move around and see effects audibly. It also eats a ton of resources.

Bill.PE Reply
May 22, 2012 00:00

Natan,

Thanks for the reply - looking at the directlon this project is going, I think I will have to bit the bullet and update to a newer development board and just try these algorithms out.

ADIApproved Reply
Oct 9, 2012 00:00

Hi all,

I finally found the time to make this wiki page. Sorry that it took so long.

https://wiki.analog.com/resources/tools-software/sigmastudio/toolbox/adialgorithms/noisereduction

Natan Reply
Oct 11, 2012 00:00

Thanks for the update Brett, always appreciated!

EZAdministrator Reply
Aug 2, 2018 00:00

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin