The output levels of the headphone connection varies, and the user can change it with the volume control of the phone. Put a 1k resistor from microphone to ground, and any Android phone out there will recognize that there’s a microphone attached. If you fix the first part, then you still have to deal with the second part. It will either record nothing, or it will use the phone’s regular microphone. That first point is where the Y-adapter and aux-cable plan falls on its face - the phone that is supposed to record won’t even recognize that there’s a cable attached to the microphone input. The output level on the earphone connection is far too high for the microphone input.The microphone jack of an Android phone requires a certain resistance between the microphone connection and ground so that the phone can recognize that a microphone is connected.There are two important bits that go into why just plugging adapters together won’t work. That won’t work, and anyone who has the slightest knowledge of how the headphone adapters work would understand why.įor those who don’t understand it, I recommend a look at the Android 3.5mm headset specifications. One suggested solution was a bunch of Y-adapters and some aux-cables. This means that the earphone needs to still work, and that the microphone of the phone that is used as a phone also has to work. The way around that is to use a second phone to do the transcription. Live Transcribe unfortunately can’t transcribe directly from a call. There are folks who don’t hear well who could make use of the transcription to aid their understanding of the spoken words. The idea is to let Google “Live Transcribe” “listen in” on a phone call and write text as the conversation is running. This question in particular was about connecting the earphone output of one smart phone to the microphone input of a second smart phone. Someday I’m going to have to search the whole blog and see how many posts contain the phrase “somebody asked a question on the Electrical Engineering StackExchange.” Skip the story and jump straight to a description of a functional transcription adapter. Transcribing phone calls with Google Live Transcribe - Table of Contents It ain’t rocket science, but it ain’t trivial, either.
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