TX Audio sound very bad "his" noise about dvpi HOT 2 OPEN

Hello Stefan,
I also noticed the same problem at home: whatever the microphone used, the sound is very unpleasant, hard and like "ripped" on the sounds "sss..." or "shshshsh...".
I no longer use DVPI because of that. It's a shame because it's a very nice project.
73 de F6CYK / Tony

from dvpi.

I had sound quality issues at first, but now I've solved them all.
I recommend it as below.

• Get enough 5V DC power to RPi. Recommended 5V 3A
• The sound quality varies depending on the microphone.
• I recommend a wired Internet connection.
  -. Take care of the ground.
• If you have a cooling fan, connect it with a separate power source.
• Do not set DVSwitch tlv gain high and adjust to Alsamixer Gain.
  good Luck!

from dvpi.