Alexa records audio only after it hears its wake word

Amazon's Alexa does not record your conversations continuously. The device listens for the wake word — "Alexa," "Amazon," "Echo," or "Computer," depending on your settings — and only begins recording audio when it detects that word. Before the wake word, nothing is sent to Amazon's servers.

Once Alexa hears the wake word, it records your voice command and sends that audio to Amazon's servers to process your request. After your command is complete, the recording stops. This is different from always-listening devices that record everything and filter it locally — Alexa's filtering happens on the device itself, before any upload occurs.

The distinction matters because it means a stray sound that resembles "Alexa" might trigger recording, but hours of normal conversation will not. You can test this by checking your Alexa app, which shows a history of everything the device recorded and sent to Amazon.

Key Takeaways

  • Alexa only records after hearing its wake word; it does not record continuous background conversation.
  • You can review and delete every recording Alexa made by opening the Alexa app and checking your voice history.
  • Amazon employees may listen to some recordings to improve Alexa's accuracy, but you can opt out of this in the app settings.
  • False wake-word triggers do happen occasionally, so checking your voice history periodically shows you what was actually recorded.

What happens to recordings after Alexa sends them

Once Alexa records and uploads your command, Amazon stores that audio file on its servers. The company uses these recordings to improve Alexa's ability to understand accents, background noise, and new words. This is standard practice for voice assistants — the more examples a system has, the better it learns to recognize speech.

Amazon also allows some of its employees and contractors to listen to random samples of these recordings as part of quality assurance. This means a person, not just a computer, may hear your voice command. Amazon states this is to check whether Alexa understood your request correctly and to identify ways to make the service better.

You have control over this. In the Alexa app, you can turn off the setting that allows Amazon to use your voice recordings for product improvement. If you disable this, Amazon still keeps the recordings but does not share them with employees for review.

How to see and delete your voice history

Open the Alexa app on your phone or tablet. Tap the menu icon (three horizontal lines) in the bottom right corner, then select "Settings." Choose "Alexa Privacy," then "Review Voice History." This shows every recording Alexa made, listed by date and time.

You can delete individual recordings by tapping the trash icon next to each one. You can also delete all recordings from a specific date range or delete everything at once. Deleting a recording removes it from Amazon's servers — it is no longer stored or used for product improvement.

If you want to prevent future recordings from being used to improve Alexa, go back to "Alexa Privacy" and toggle off "Help Improve Amazon Services." This stops Amazon employees from listening to your recordings, though Amazon still stores them for your account history.

False wake-word triggers and what causes them

Alexa occasionally records when you did not say the wake word. A word that sounds similar — "Alaska," "Alexis," or even a song lyric that resembles "Alexa" — can trigger the device. Background noise, a TV show, or someone else's voice can also set it off.

These false triggers are why checking your voice history matters. If you see recordings you do not remember making, they are likely false triggers. You can delete them individually, and Amazon uses patterns of false triggers to improve how the device recognizes the actual wake word.

You can reduce false triggers by adjusting the wake-word sensitivity in the Alexa app. Under "Settings," choose your device, then "Wake Word Sensitivity." Lowering the sensitivity means Alexa requires a clearer, more direct "Alexa" to start recording, though it may miss some legitimate commands.

The difference between Alexa and other voice assistants

Google Assistant and Apple's Siri work similarly to Alexa — they listen for a wake word and only record after hearing it. All three services store recordings and use them to improve accuracy. All three allow you to review and delete your history.

The main differences are in what data each company collects alongside the recording. Google ties voice commands to your Google account and search history, which means it can connect your Alexa-like requests to other things you have searched for. Apple processes Siri requests on your device first and uploads less data to its servers than Google or Amazon do.

If privacy is your main concern, you can reduce what any voice assistant records by using it less often, deleting your history regularly, or disabling the product-improvement features that allow human review.

What Alexa cannot do, even if it wanted to

Alexa cannot record before the wake word is spoken, because the device does not have the processing power to analyze all audio and decide what is worth keeping. It would drain the battery in hours and require constant internet connection. Instead, the wake-word detection happens on the device using a small, straightforward algorithm that only listens for that specific sound pattern.

Alexa also cannot record video. The Echo Dot, Echo Show, and other Alexa devices with screens do not have cameras unless you buy a model specifically designed with one, like the Echo Show 15. Even then, the camera is separate from the microphone and requires its own set up.

Once you delete a recording from your history, Amazon cannot recover it. Deletion is permanent. This is different from some other services that keep deleted data in backup systems for a period of time.

Frequently Asked Questions

Can Alexa record me if I unplug the microphone?

No. If your Alexa device has a physical mute button, pressing it disables the microphone entirely. Some devices also have a microphone off switch. When the microphone is off, Alexa cannot record anything, and it will not respond to the wake word until you turn the microphone back on.

Does Amazon share my voice recordings with other companies?

Amazon does not sell your voice recordings to third parties. However, if you use Alexa with third-party skills — like a banking app or a smart home system — those services may receive information about your commands related to their service. Check the privacy policy of any skill you install.

What if I see a recording I do not remember making?

It was likely a false wake-word trigger. Check the timestamp and think about what was happening at that time — a TV show, music, or someone else speaking. You can delete it from your history. If false triggers happen frequently, lower the wake-word sensitivity in your device settings.

Can I use Alexa without letting Amazon keep my recordings?

You can delete recordings when ready after using Alexa, and you can turn off product-improvement features so employees do not listen to them. However, Amazon stores recordings on its servers by default to maintain your voice history and improve the service. Deleting your history regularly is the most practical way to limit what Amazon keeps.