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One anecdote I remember from the Steve Jobs biography was how he'd discovered that a speaker could also be used as a microphone. Is there any risk of some of th
by uptown 8y ago
One anecdote I remember from the Steve Jobs biography was how he'd discovered that a speaker could also be used as a microphone. Is there any risk of some of these devices using that capability to convert their audio output tech into audio input tech?
- zeroego 8y agoI don't have a direct answer to your question, but it piqued my curiosity so I did a quick search. I found this informative little post: https://security.stackexchange.com/questions/154343/can-a-speaker-be-used-as-a-microphone https://security.stackexchange.com/questions/154343/can-a-sp...
- gojomo 8y agoSome on-chip gyros/accelerometers can also work as microphones – and may be even harder to separate those via an external cut-off switch.
- jhayward 8y agoSo can capacitors - a common factor to avoid in amplifier design - and at the limit, so can just about any semiconductor.