Hi. I have a Mi 13T and I read on Internet that there are 3 microphones on it.

I have taken significant steps to de-Google my phone, installed open-source apps, and covered all the cameras for privacy. However, I’m struggling to identify the three microphones within the device. I’ve encountered challenges in finding detailed information about these components online, and I’m looking for expert help.

I downloaded the Device Info HW app and it tells me that there are 6 audio input devices.

TYPE_BUILTIN MIC(in)
position=bottom
channels=[1, 2], masks=[16, 12]
encodings=[2] PCM_16BIT
sample rates=[8000, 16000, 32000, 48000, 44100]

TYPE_TELEPHONY(in)
channels=[1], masks=[16]
encodings=[2] PCM_16BIT
sample rates=[8000, 16000, 32000, 48000, 44100]

TYPE_BUILTIN MIC(in)
position=back
channels=[1, 2], masks=[16, 12]
encodings=[2] PCM 16BIT
sample rates=[8000, 16000, 32000, 48000, 44100]

TYPE_UNKNOWN(in)
position=0
channels=[2], masks=[12]
encodings=[2] PCM_16BIT
sample rates=[48000]

TYPE_FM_TUNER(in)
channels=[1, 2], masks=[16, 12]
encodings=[2] PCM 16BIT
sample rates=[8000, 16000, 32000, 48000, 44100]

TYPE_UNKNOWN(in)
channels=[1, 2], masks=[16, 12]
encodings=[2] PCM_16BIT
sample rates=[8000, 16000, 32000, 48000, 44100]

So basically 2 mics, 1 telephony in, 1 FM tuner, and 2 unknowns.
Honestly, I don't understand much about this, so I'm asking you. What are them? Are there 6 microphones? Or are some of them just audio signal processors? How many microphones do my phone have?

I think the best way to know it it is watch right? Except if they are hidden in the borders.

Can you please help me spot the microphones?
How can we think we are protecting our privacy if we don't even know what we have in our hands? One is the one circled, but what about the other two?

Thank you.

⟐ Edited by author December 05, 2025 at 23:57 MST