I am testing my audio cape but sound often comes with noise(sometimes it is clear).
Have no idea about this noise.
Just guessing this might be the driver or codec problem.
so I tried $modprobe snd_soc_tlv320aic3x’ because the audio cape is using the TLV320AIC3106 codec.
but it shows error of ‘Module snd_soc_tlv320aic3x not found.’
List of the audio devices in my system is as follows:
Discard all samples (playback) or generate zero samples (capture)
Default Audio Device
**** List of PLAYBACK Hardware Devices ****
card 0: EVM [DA830 EVM], device 0: AIC3X tlv320aic3x-hifi-0 
Subdevice #0: subdevice #0