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Audio input through headphone jack in Android? - Stack ...
https://stackoverflow.com/questions/24774483/audio-input-through-headphone-jack-in-android
The TRRS plug has two lines for left and right channel of the headphone but only one line for the external microphone (see e.g. this description of the plug ). So you can only do monophonic recordings (the only smartphone exception at the moment: the Sony Z2 has a new TRRRS plug). You can build an adapter on your own (see e.g. the pictures here ).
Recording Audio through the headphone jack? Old phone ...
https://androidforums.com/threads/recording-audio-through-the-headphone-jack-old-phone.1100908/
The headphone jack is output only, its internal wiring is connected to the audio chip on the LG's motherboard, and the jack's metal contacts are positioned only for output. Yes a typical 3.5mm plug that are on the end of some microphones will fit into the jack but that's only because the jack is using a common standard, the metal contacts on the end of the plug are …
Add an audio input to Android - TechRadar
https://www.techradar.com/news/phone-and-communications/mobile-phones/add-an-audio-input-to-android-1189160
First, you need to get a 3.5mm to three RCA socket adapter for about 10 bucks. This adapter is normally used for camcorders, but plugged into your phone's headphone socket, the red RCA socket...
Recording through headphone outputs - Gearspace.com
https://gearspace.com/board/newbie-audio-engineering-production-question-zone/906327-recording-through-headphone-outputs.html
If your headphones play in both ears, then a splitter cable mustbe used. If you plug a TS/TS cable into a stereo TRS headphone jack, it will short out the right channel output and if it's a mono synth, it will short out both channels. A TS cable should neverbe inserted into a …
How do I record through the headphone jac… - Apple Community
https://discussions.apple.com/thread/3991995
The headphone jack is actually three channels: left out, right out and mic in. A standard stero cable can only pickup stereo audio out and doesn't come into contact with the mic channel in. Also, this mic channel is EQed and balanced for a voice mic. To get audio from your keyboard, it's best to use something like GuitarJack2 from Sonoma Wireworks.
How to record video with an external microphone on a ...
https://askfred.be/blog/how-to-record-video-with-an-external-microphone-samsung-s9
If you try to record simply using a single fm/m adapter, Androids don't pick up the signal and record - you get silence. The default is that the phone output jack is dedicated to headphone sound out. The two-piece splitter adapter that you show is also critical (these are cheap to buy) to enable your external mic to record!
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