No output from secondary sound source during MFXLMS training
During MFXLMS training, the secondary sound source can emit sound normally. After saving the secondary channel coefficients after training, go to the control page, download again, and turn on the control. However, at this time, the secondary sound source does not emit sound. As shown in the figure:
Audio Signal Processors
adau1452
sigma studio
software
SigmaDSP Audio Processors
sigmastudio4.7
MFXLMS
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Hello javaboy,
Can you please attach your project? I do not have the time to reproduce it and make guesses as to what is in the hierarchy blocks.
Dave T
ADAU1452降噪.dspproj
Hello Professor, I am sorry to reply to you only now. I was in hospital for the last two days and my program is here. I tried again and found that there is an output, but then I had two more questions:
(1) How do I know if secondary channel modeling is successful? How long does modeling need to stop? There seems to be no graphical help.
(2) How can I know if the control is successful and how effective is the noise reduction? The output of one pin of the MFxLMS module is the mean square error. How to analyze it.
Is there a relevant tool for SigmaStudio, or are there other external tools that can be used, because these program panels are run in one or more sampling cycles and do not store the change process of the noise reduction system from the beginning to the convergence, nor do they show whether the ANC system is in convergence or not, while what I need is to record the change of the error signal, the reference signal and the mean square error signal. Does it have to be an external program or can it be done with the help of SigmaStudio?
I am working on a project of active noise reduction, so I need data support to meet the requirements of the paper.
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