NLMS ANC
Hello, I have a question I want to apply NLMS I have 2 microphones. and I have a speaker, I give the noise in the system through the phone and I have an adau1467 eval board I want to apply NLMS and give the inverse of the signal from the other speaker and damp it, but I want to do this by giving it from the other speaker I passed a random noise signal through the FIR filter and these are the signals I want to reach in the damped state and I connected the error outputs to the speaker output but I don't hear any sound from my speaker.
Audio Signal Processors
software
adau1467
SigmaDSP Audio Processors
4.
Hello ofm,
Can you define which input is the near side signal, the microphones, and which signal is the far side?
How is the far side signal coming in? Via a network? Then you want two speaker outputs? One for the farside audio and one to cancel something?
What do you intend to try to cancel via a speaker? This is not normally how it would be done as far as cancelling the other side of the conversation to prevent feedback and echos. If you intend on cancelling the ambient noise in the room then it will be only a limited effectiveness because the latency is too large.
Also, please attach your project. That is usually helpful.
Dave T
NLMSTest.dspproj
IN1 microphone is the microphone I want to dampen active noise using NLMS and how to observe the fft graph in microphones. I want to active noise cancelling with this speaker output
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