Plug it into 1/4 jack, seems that’s the problem after your explanation, I will order the RCA splitter and try out, thanks a lot for help.
That definitely is the issue. AV receivers don't have a 1/4" input jack for microphones. This is why you need to always read the manual for your product. I expect that they think you will be hooking up that microphone to a standard karaoke unit which typically does have a 1/4" microphone input. But, AV receivers typically only have a 1/4" HEADPHONE OUTPUT. This is pretty clearly described in the owner's manual.
It should also be noted that AV receivers do not 'mix' audio. So, you can't have loud background music playing and being mixed to with the microphone. That's not how AV receivers are designed to work. You get microphone audio, OR you get source audio. You don't get a mix of the two. If you want video on screen along with audio from the source along with microphone audio from someone singing, then you will need a karaoke machine, or mixer which will accomplish this for you.
It is VERY IMPORTANT: Let others know what your desired end goal is. While you say you want to hear audio out of your AV receiver, you also mentioned karaoke, which then tells me that you may want a mix of audio and video out of your system.
To accomplish that, something like this is actually, and very specifically what you may want:
Buy VocoPro HD-Oke High-Definition Karaoke System with HDMI Connectors featuring For Soundbars & Home Theater Systems, Two 1/4" Microphone Inputs, 1/8" Line Input and Output, HDMI Input and Output, Four Vocal Effect Presets, Vocal Eliminator Function, Includes Two Handheld Microphones, Includes...
www.bhphotovideo.com
That gives you a proper 1/4" microphone input along with HDMI video/audio in/out which should give you a mix of everything on screen and into your receiver.