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Just installed the new version. Yes microphone is working as expected now !

I have a semi-solution for DS-KH9310 indoor unit; The back panel has a micro usb port that means you can connect an external microphone and automatically Android uses this microphone as the main one. I managed to do an experiment using the following: 1. Using the following MicroUSB (M) to USB-A...

The other one should be the KH9510 that's it's quite bigger screen. Did your reseller spoke with Hik Vision support or he concluded on his own to RMA the unit ?

@Alexcaid yes with the version V2.1.80 they also stating it as fixing buzzing noises issue in the version, fixes the buzzing noise but not completely. Seems that the previous firmwares were unable to close the audio sink immediately after use thus the buzzing electrostatic noise was coming from...

@Kyle here is a historical "changelog" regarding my indoor unit. Probably it will be useful. I had the microphone issue since the day one. I reckon since the V2.1.48_build220620 which the Indoor Unit came with. Due to the fact that I had the buzzing noise issue I updated to V2.2.26 Build 230830...

Indeed. I tried another app that it's online by booting the indoor station into Android and visiting via the browser the following page mic test. You need to give microphone permissions through the Apps settings to make it work. Microphone sound quality is awful. There is another way also to...

Looks like that adb shell is pretty locked / lacks functionalities ( info here) @Kyle @trempa92 Any other possible solutions / ideas ?

Unfortunately no. I was thinking to utilize the adb tool to change the volume via usb

By changing the outdoor's volume will make the second indoor unit that it's already connected ( not an Android ) to be really loud. I changed the encoding from G711.alaw to G711.ulaw but the issue is still the same.

Unfortunately the only Volume and Speak( yes speak...) sliders on IVMS are related with indoor's unit speaker and notifications volume. I double checked the protective cover with a needle but the mic looks to be cover free.

Hello everyone, I have the DS-KH9310-WTE1(B) indoor unit connected to DS-KV8213-WME1(C) outdoor station. Although I encounter an issue with the Indoor unit's microphone. Other people can hear me only when I speak literally next to the microphone hole of the indoor unit. I ended up upgrading it...