Before you proceed with the solution make sure you have taken care of these initial troubleshooting steps:
Use Google My Activity To Make Sure Audio Is Being Detected And Clear The Microphone
Google keeps track of all your activities across your Google services including Google Search, Maps, Google play store, and online shopping. This helps google fine-tune our search results. One of the advantages is that google records everything you say to your Google Home and Mini and you can log in to myactivity.google.com and listen to those recordings. In this method, we will log in to my Activity and listen to those recordings to make sure these recordings are clear, if these are scratchy or they do not exist that means that the microphone is not working correctly, In that case, we will try to clean the microphone and see if that works for us.
Changing Wi-Fi Channel Options From Router
For Wireless routers, there are a number of Wi-Fi channels available and the strength of these Wi-Fi signals does depend on the Wi-Fi Channel selected. Since some Wifi channels have more interference than the others and that is because there may be other Wifi networks present around you and the signals from those networks create interference. Google Home Mini uses 2.4Ghz or 5GHz frequencies to connect if there is another strong network around you that uses the same frequency band then it can cause interference. In this method, we will use first find out any other networks around that use the same network frequency, and If so we will change our network Wifi channel.
Reset Google Home Mini
In this method, we will reset the Google Home Mini to the factory default settings. Resetting a device ensures that any misconfigurations are rolled back and the cache from the memory is cleared but this will also remove all your custom settings. This method has been reported to have helped some users.
