Read the Beforeitsnews.com story here. Advertise at Before It's News here.
Profile image
Story Views
Now:
Last hour:
Last 24 hours:
Total:

Q: How Much Can Your Phone Hear? A:Testing Shows One Microphone Picks Up Sounds From Every Room

% of readers think this story is Fact. Add your two cents.


You may have read about how microphones in your various devices Such as your phone can record and send audio without you knowing about it. Besides your phone, these devices could be your:

TV

Computer

Various consumer devices marketed by Amazon.

Tablet

And possibly your:

Video and still cameras

A few interactive children’s toys that are programed to have a conversation and ask questions.

Your car.

Any device that has the capability of being connected to a phone line or the internet.

I have a friend who has an ap on her phone that has a name and you can say its name and then ask a question. Sometimes there will be a noise in the room and her phone will say something like “I did not understand that”. This thing is always running in the background. A few years ago I did an instructable article showing how to make a power supply to power condenser microphones.

Link

:https://www.instructables.com/id/Condenser-Microphone-Power-Supply/ Multiple pages.

 

I recently purchased some new microphone elements and picked a winner. It is an improvement over what I was using before and cost only $5. This makes it officially a cheap microphone. I power it off my cheap single transistor preamplifier I built and I use a cheap USB interface that I bought on Ebay (typically around $10 – $15) to make MP3 files.

I have been making all kinds of test recordings with dirt cheap audio devices. Below are a few test files with a single microphone in the dining room. My conclusion is that a mic placed in a more central location might be sufficient to record sounds all over the house if all the interior doors are open. Note that no attempt was made to minimize ambient noise. It is realistic testing of a likely scenario. You come home from work and toss you keys and phone on the table and start yapping about your day. Everything you say can be recorded whereever you are.

The first file is me talking as I walk around the house.

https://cdn.instructables.com/ORIG/FBY/8RRX/JAIJLJZ2/FBY8RRXJAIJLJZ2.mp3

The next recording is a clip from the middle of the first recording with the volume boosted 20 db.

https://cdn.instructables.com/ORIG/F4Q/VMUB/JAIJLCME/F4QVMUBJAIJLCME.mp3

The next recording is like the second recording but with the graphic equalizer included with the USB interface to adjust the bass and treble for greater clarity.

https://cdn.instructables.com/ORIG/FZH/FFEW/JAIJLE46/FZHFFEWJAIJLE46.mp3

I’m not an engineer. Can you imagine what real enineers are doing with intent to do it and state of the art parts and equipment,

Here is a recording with the microphone more centrally located in the house (no edits):

https://www.instructables.com/files/orig/FOV/SRJF/JAMTPY1B/FOVSRJFJAMTPY1B.mp3

2nd try with the centrally located mic. This recording was boosted 10 db after the recording.

https://www.instructables.com/files/orig/FEU/XF8M/JAMTW470/FEUXF8MJAMTW470.mp3

And here is the same recording with edits leaving only the part with me in the bedroom and bathroom. I added 20 db after the recording in addtion to the original 10 db.

https://www.instructables.com/files/orig/F7I/P6WD/JAMTW477/F7IP6WDJAMTW477.mp3

This last recording is quite telling. Yes, just one of your devices can pick up just about everything in every room 24/7.



Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world.

Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.

"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.

Please Help Support BeforeitsNews by trying our Natural Health Products below!


Order by Phone at 888-809-8385 or online at https://mitocopper.com M - F 9am to 5pm EST

Order by Phone at 888-388-7003 or online at https://www.herbanomic.com M - F 9am to 5pm EST

Order by Phone at 888-388-7003 or online at https://www.herbanomics.com M - F 9am to 5pm EST


Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!

HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation

Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.

MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)
Oxy Powder - Natural Colon Cleanser!  Cleans out toxic buildup with oxygen! 
Nascent Iodine - Promotes detoxification, mental focus and thyroid health.
Smart Meter Cover -  Reduces Smart Meter radiation by 96%!  (See Video)

Report abuse

    Comments

    Your Comments
    Question   Razz  Sad   Evil  Exclaim  Smile  Redface  Biggrin  Surprised  Eek   Confused   Cool  LOL   Mad   Twisted  Rolleyes   Wink  Idea  Arrow  Neutral  Cry   Mr. Green

    Total 1 comment
    MOST RECENT
    Load more ...

    SignUp

    Login

    Newsletter

    Email this story
    Email this story

    If you really want to ban this commenter, please write down the reason:

    If you really want to disable all recommended stories, click on OK button. After that, you will be redirect to your options page.