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A question about NoiseTHX

As the figure below, the test NoiseTHX is discontinuity, but from my perspective it needs to be continuous, is it right? can we change it to a continuous noise? thanks.

  • Xavier,

    Please provide more information. Your post is not familiar.

    Regards,
    RandyP
  • Thanks.
    I used the Signal/Noise Generator function with DA788/790 in out project, there is a NoiseTHX choice to select as a test noise, but after checked by AP, I found the noise is discontinuity, I think it should be continuous, I dont know which is correct? if it is continuous, how can I correct it?
  • Hi Xavier,

    Thanks for your update.

    It depends on the characteristics of Noise THX choice you have selected to test through signal/noise generator and check whether the input test noise fed from signal/noise generator is continuous or discontinuous through scope before applying it to DA788/790 project application.

    In order to correct the test noise, you could implement noise correcting filters depending on the input noise characteristics before decoding the actual desired signal which would then tap out the noise and increase the signal-to-noise ratio performance.

    Based on the type of noise (low freq., high freq., etc), we could apply denoising software filter correction algorithms on the decoding part of the application which would also reduce the noise. Alpha-bending, gamma correction, edge filtering etc. and also some other noise filtering algorithms can be integrated along with the actual decoding application code to improve the signal-to-noise ratio performance.

    Thanks & regards,

    Sivaraj K

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  • Thanks a lot.

    The issue is fixed, the Noise THX input is correct, but there is a wrong setting in our DAC chipset.

    Best regards

    Xavier