Unable to connect USB OTG microphone

[krameri42]

Hi there!
I just purchased a wireless microphone for my T-Mobile Revvl 2 Plus running Android 8.1.0. The microphone has a receiver that is supposed to be directly plugged into the phone. I tried recording a video with it, but it doesn't work. When I plug the mic, there's a popup window saying "Your phone can charge other phone. And the battery will reduce quickly during the charging."
The seller's website says I'm supposed to turn on OTG in the phone's parameters, but I can't find the option.
I tried multiple OTG checker apps before buying the mic, they all said my phone was compatible (including "USB OTG Checker", which said my phone was compatible and even detected the microphone, which appeared as "USB Composite Device").
Then once I had the mic I tried "USB Host Diagnostics" (no longer available on Google Play, I downloaded the apk somewhere else), and here is what it said:

Android API: claims support: yes ; classes found: yes ; device detected: yes
Kernel: Claims support: yes ; device detected: no
Verdict: OS support: no ; 3rd party apps: no

I'm confused by the fact that the Android API parts all say "yes"...
I also tried the developper settings, changing the USB Configuration from MTP to Audio source, and checked and unchecked the "Disable USB audio routing" checkbox (as suggested in some video I watched) and restarting the phone. But nothing worked.
However, the microphone works perfectly on my computer, so I guess the problem is not mith the mic itself.
Could someone please help?
Thanks

 

[Laura Knotek]

Which microphone are you using? Do you have a USB OTG adapter?

 

[krameri42]

Hi!
Thanks for your reply!
I bought this one: https://www.amazon.ca/dp/B0DHVTX4NM
It's supposed to be plugged directly into the phone's USB-C port.
I don't think a USB OTG adapter would be suitable here since these are for USB-A devices if I'm not mistaken...

 

[Laura Knotek]

Hi!
Thanks for your reply!
I bought this one: https://www.amazon.ca/dp/B0DHVTX4NM
It's supposed to be plugged directly into the phone's USB-C port.
I don't think a USB OTG adapter would be suitable here since these are for USB-A devices if I'm not mistaken...

According to this source, a USB OTG adapter is required. https://www.quora.com/How-do-you-connect-a-USB-microphone-to-an-Android-phone

 

[krameri42]

But I'm confused... My microphone is a USB-C. All the OTG adapters I found on the internet allow to plug a USB-A into a phone's USB-C port. But the microphone is not USB-A. I didn't find any adapter that is USB-C on both ends...

 

[Laura Knotek]

But I'm confused... My microphone is a USB-C. All the OTG adapters I found on the internet allow to plug a USB-A into a phone's USB-C port. But the microphone is not USB-A. I didn't find any adapter that is USB-C on both ends...

Have you contacted the manufacturer of the microphone and asked them?

Unfortunately, I doubt if anyone here owns that microphone and phone combination you have.

If it were me, I'd return the microphone for a refund if the manufacturer couldn't provide a solution.

 

[krameri42]

I will contact the manufacturer and see if they reply.
I actually managed to make the microphone work with a different app (I was only testing it with the default camera). The app is Open camera, it works fine because there's an option that allows to use an external microphone. So this means the issue is with the apps.
However, with WhatsApp and Messenger, it sometimes works, and the rest of the time the app freezes. It doesn't work either with the default phone app (I've tried installing different ones, I haven't found any that allowed me to choose which microphone I want to use).
I also tried Lesser AudioSwitch, an app that is supposed to force the phone to use desired output and input devices, but it didn't work either.
Does anyone know if there are apps that would allow me to make a phone call with a USB microphone? If Open camera can pick up the sound from the mic and if there are apps that can replace the default phone app, surely it should be possible to have an app that can combine those features?