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how to properly set the settings in real time display graph

Thread Summary

The user is experiencing issues with a real-time display graph showing spikes instead of a 500 Hz sine wave. The final answer suggests using a physical oscilloscope or a sound editor like Audacity to view high-frequency waveforms, as the real-time display is limited to a few tens of Hz. An equivalent-time sampling technique at 498 Hz can also be used to visualize the 500 Hz sine wave. For saving the signal to a PC, optical S/PDIF is recommended as the simplest method, or the analog output can be used if additional DAC and ADC in the signal chain are acceptable.
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Hi,

I am using real time display graph to plot sine tone freq=500hz. but I am not getting the correct output in real time display graph? I am getting spikes instead of sine wave. I just want to know what are the proper setting for realtimedisplay block. The pic of project is attached

Thanks

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  • Thanks Bob and Brett,

    For my paper, I want to plot the signal at one Mic only. For the timing I will try using Oscilloscope to capture result in excel sheet.

    Ideally I want to save the wav file from ADAU1446 evaluation board to PC. The evaluation board have lot of different options like SPDIF, Optical and I2S. But which option is cheap and best?

    Thanks

     

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  • Thanks Bob and Brett,

    For my paper, I want to plot the signal at one Mic only. For the timing I will try using Oscilloscope to capture result in excel sheet.

    Ideally I want to save the wav file from ADAU1446 evaluation board to PC. The evaluation board have lot of different options like SPDIF, Optical and I2S. But which option is cheap and best?

    Thanks

     

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