how do microphones in a phone not pick up any audio that the speakers put out? if I put a call on speaker mode, how do people on the other end not hear themselves?
In: Technology
Most speaker phones just cut off the microphone when the incoming sound signal crosses some threshold of volume so you don’t get feedback. It is a simple: “if the audio is loud enough that the mic would pick it up, then turn off (or turn way down) the mic”
This can super annoying when someone on a speaker phone is talking and another participant in the call reacts audibly or has background noise loud enough to be heard on their headset mic because every little “hmm” or “yeah” or dog bark cuts off the first person completely. I have a regular call with guy who like to use a speaker phone and a guy who interrupts everyone and I have to tell the first guy that the Interrupter isn’t going to stop interrupting so he’s got to put on a headset if he wants to be heard.
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