efficient Noise cancellation & suppression algorith to use in VoIP for low latency
You could use DSP algorithms based on deep learning techniques like this scenario:

You have clean voice Sig.1 .

You have known different types of noise Sig.2 .

Merge Sig.1 and Sig.2 then Sig.3 generated (noisy speech).

Feed it Sig.1 to deep learning based software also Sig.3 then make training the system.

Then obtained coefficients should be close enough to Sig.2

In this way you will have a system that could predict the noise type in real time and generated the anti noise signal which it opposite in phase (180) and add the microphone signal before send .