Many ignore it, but every time you use the voice command of your Android smartphone, Google keeps track of your request. The American giant records and stores on its servers everything you say to your mobile. In this tutorial, we will see how to delete audio files related to past voice searches from an Android mobile..
Google voice search
As you already know, Google collects and stores all of your past search history from its search engine but also from the YouTube video sharing site. And if you think that regularly deleting history from your web browser is enough to protect your personal data, you are greatly mistaken.
You just have to log into your Google account and then go to the My Actvity page to access all of its activity history . Searches on the net, videos viewed on YouTube, websites viewed, routes on Maps, history of GPS positions, services used (calendar, docs, etc.), the American company keeps track of everything you do..
This obsessive collection of data also affects services related to voice search . Few gans the scientist but each time you pronounce the famous phrase Ok Google, the American firm records and archives everything you say.
These audio files are then analyzed and used to improve the Android voice recognition tool. This system can also be very useful for finding lost information. That said, the tool also offers you the possibility of erasing all of its records as we will see in the rest of this article..
How to listen to the history of your voice searches
Interested in knowing what Google knows about you? That's good the search engine has just launched a new service called My activity. 
Just go to the dedicated page and then log in with the Google account credentials of your Android smartphone to have access to all your personal data and in particular your voice history.
- Launch your web browser and open this page https://myactivity.google.com/
- Enter your login and password
- In the menu click on the heading Voice and audio activity
- Select one of the available audio recordings from the list.
As much to tell you right away, listening to your own voice talking to a smartphone is an experience as unpleasant as it is strange. And this feeling is likely to be even more painful if by delving into the history you come across old embarrassing requests.
Erase all audio recordings from Google Now
Fortunately, the My Activity service allows you to erase data collected by Google, including audio files. Depending on your activities on Google Now the operation can be long and tedious /
- Type in the search box the embarrassing keywords you used to use
- Press the Filter by date and product icon and check the Voice & audio box to display only voice searches
- Then click on the Menu button
- Press the Delete results button
This method, although rapid, has a big drawback. Indeed, few people remember the requests or the voice commands they place via the Google Now tool. To go faster and be sure not to forget anything, it is better to adopt this second method.
- Go to the home page of the My Activity service
- Press the Menu button represented by a button containing 3 vertical bars
- Click on the Removal options section then on advanced
- Place your mouse on the tab select a date
- Choose the option for the whole period
It is certainly radical but very effective. Obviously you will have to return regularly to the site to clean up your voice history. Unless this experience leads you to less use voice search services.