Q: How Much Can Your Phone Hear? A:Testing Shows One Microphone Picks Up Sounds From Every Room
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.
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.
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.
LION'S MANE PRODUCT
Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules
Mushrooms are having a moment. One fabulous fungus in particular, lion’s mane, may help improve memory, depression and anxiety symptoms. They are also an excellent source of nutrients that show promise as a therapy for dementia, and other neurodegenerative diseases. If you’re living with anxiety or depression, you may be curious about all the therapy options out there — including the natural ones.Our Lion’s Mane WHOLE MIND Nootropic Blend has been formulated to utilize the potency of Lion’s mane but also include the benefits of four other Highly Beneficial Mushrooms. Synergistically, they work together to Build your health through improving cognitive function and immunity regardless of your age. Our Nootropic not only improves your Cognitive Function and Activates your Immune System, but it benefits growth of Essential Gut Flora, further enhancing your Vitality.
Our Formula includes: Lion’s Mane Mushrooms which Increase Brain Power through nerve growth, lessen anxiety, reduce depression, and improve concentration. Its an excellent adaptogen, promotes sleep and improves immunity. Shiitake Mushrooms which Fight cancer cells and infectious disease, boost the immune system, promotes brain function, and serves as a source of B vitamins. Maitake Mushrooms which regulate blood sugar levels of diabetics, reduce hypertension and boosts the immune system. Reishi Mushrooms which Fight inflammation, liver disease, fatigue, tumor growth and cancer. They Improve skin disorders and soothes digestive problems, stomach ulcers and leaky gut syndrome. Chaga Mushrooms which have anti-aging effects, boost immune function, improve stamina and athletic performance, even act as a natural aphrodisiac, fighting diabetes and improving liver function. Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules Today. Be 100% Satisfied or Receive a Full Money Back Guarantee. Order Yours Today by Following This Link.

NSA Play List:
/comic-relief/2017/12/nsa-play-list-2437832.html