Using headphone jack as line in for Google Recorder - Google Pixel 3a Questions & Answers

I have a Pixel 3a with the Google Recorder app installed. I am trying to transcribe some audio files that are on my laptop. I have a 3.5 mm male/male cable plugged into my laptop and the other end is plugged into a TRRS adapter which is plugged into the headphone jack of the 3a. Google Recorder has a setting that will allow it to use an external mic if it is detected but it does not detecting it. I have previously used this exact same setup on this phone to feed the sound from our sound system into my phone running Larix broadcaster to live stream and it worked fine. So, I know that the phone SHOULD be able to use this as an external mic. I should also add that I plugged my hands-free headset into the phone and Google Recorder DID detect the external mic. I just can't figure out why Recorder won't recognize my line-in setup as a mic.
Anyone have any ideas?

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Voice Command 1.6/microphone doesn't work when connected to External Speakers

Hi, I am having problems in using Voice Command 1.6 when my ATT Tilt (ROM version: 1.62.502.0) is connected to external speakers such as TV speakers, Car speakers etc. I am using 3 in 1 USB Adaptor to connect cable to speakers.
The problem seems to be with Microphone of the phone which is for some reason being deactivated as soon as the 3 in 1 USB adapter is plugged into the phone. For the first time when I used 3 in 1 USB cable, it worked fine. But after that it stopped working and Microphone is being deactivated as soon as 3 in 1 cable is inserted into phone.
Whereas, when I insert other USB cable such as for charging, ActiveSync etc, microphone seems to be active and I can use Voice Command while the cable is inserted.
Please help. I need the microphone to be active to be able to use VoiceCommand while my phone is connected to my car's AUX port speakers.

[Q] Redirect audio from headphone jack to USB?

Is there a method for redirecting audio from a streaming music player (Spotify, IheartRadio, etc.) to play through the USB port instead of the headphone jack on the HTC One S? I primarily play music through my car stereo and would prefer to use the USB connection instead of the AUX port since I would be able to charge my phone while listening using only 1 cable. This method works fine if I want to mount the SD card and listen to the music stored on my phone but I don't believe it works for streaming audio.
There was an app called SoundRedirector that was built for the Samsung Galaxy S that did this when it was docked in the OEM car mount.
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Splitting the 3.5mm jack with microphone and speaker output - possible?

Hi All,
I was wondering if the below scenario is possible with any android phone.
- Plug a 3.5mm splitter into the audio jack (two female ends)
- Plug a speaker system (headphones, whatever) into one split port
- Plug a microphone into the other split port
Would the phone play audio (music, etc) through the headphones normally? If someone were to call, would the voice on the other end play through the headphones and the microphone work for me to talk to them through?
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EDIT: Since the response has been overwhelming I went and tried the method above. Works perfectly. Thanks to... me *self high five*.

Smartwatch 3: hands-free calling in the car via AUX

Hello!
I would like to use the SmartWatch 3 in the car, hands-free calling. In addition I have the SmartWatch connected to the mobile phone and the mobile phone connected to the AUX port of my car-radio. Now I can hear the caller over the car-speaker, but he me not. The integrated microphone in the watch not work.
Can help my?
No one has an idea?
Times an example without a watch: If you connect the phone to the AUX output and someone calls, then you hear the voice over the car speaker, but he does not hear me. The microphone is then switched always silent. Why is that? Is that a problem with the cable?
The watch microphone has one and only function: translate your voice into commands for Google Now.
If you attach your phone to the aux port of your car stereo, depending on the phone itself, the phone mic will shut off or work as always.
In Xperia phones, the headphone jack doesn't exclude the microphone as long as it's not connected to a headset.
If I connect my Xperia Z Ultra to the Aux port of my car stereo, I can hear the caller and he can hear me if I keep the phone mic at a reasonable distance.
To keep things way better and simpler, I had a SBH20 bluetooth headset laying around, connected to the car stereo, and placed in the middle of the car.
That way I can stream music and call hands free without worrying about the position of the phone itself, cause the headset has its own mic, obviously. [emoji6]
Sent from my C6833 using Tapatalk

Recording stereo audio via USB

I've got some stereo audio going into a USB audio interface which I want to record onto my phone.
I've plugged the USB adapter that came with my S7 edge into the mini firewire/charging port of the phone, and connected the audio interface USB cable to that. I've tried a couple of stereo sound recorders like recforge but when I record the audio going into the phone from the USB, it comes out mono only and I want it stereo.
Is the phone not equipped to record stereo from USB or can anyone recommend an app or driver?

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