Forum Discussion
Altera_Forum
Honored Contributor
Honored ContributorI get a big noise when I echo the audio data from microphone
I designed a audio system in Qsys. I read the fifo data from the microphone input and write it to the audio write fifo. Although I can hear the microphone echo, it also generate a very big noise. I c...
Altera_ForumHonored Contributor
Honored ContributorI recommend using a triangle wave to test your input function. It is easier to verify that the received data is correct. You should use a function generator connected to the ADC input. Don't forget to get the impedance matched. Once you have a clean triangle wave going to your audio input you should be able to test your data input function.
