Too much Microphone noise

[KillStreakArtz]

There you go. The USB PnP is the Soundcard I bought, on-board soundcard has been disabled, and the NVIDIA driver is for the LED I have connected through the HDMI port. No issues at all with that driver, everything's up to date.

[Brian1965]

Thanks, everthing looks okay so far. Just to satisfy my curiousity, can you also please upload similar images for your Sound, video and game controllers, and Universal Serial Bus devices from the Device Manager screen. I need to be absolutely certain that there is no other conflicting hardware with your Windows 10 installation and audio problem.

Is there any way to check your microphone and headphones/headset in another computer? Or, do you have another microphone or set of headphones you can test with? I would certainly eliminate the microphone(s) or headphones/headset as causing or contributing to the problem.

[KillStreakArtz]

I used my headset's microphone this time, same sound error. Here are the pics ; 

Headset's mic 

[Brian1965]

The sound sample you uploaded now sounds more like EMF interference, and not the grounded mic signal I was hearing previously. For the sake of testing, and eliminating any other issues with drivers, can you please temporarily disable ALL the Nvidia sound optons in the Sound, video and game controllers tab in Device Manager. Please ensure that there are no high power electrical appliances near the computer or audio cables as this will most definitely cause EMF interference. Keep the audio signal leads away from any mains voltage signals.

Can you please provide a bit more information regading "the NVIDIA driver is for the LED I have connected through the HDMI port".

[KillStreakArtz]

The Nvidia driver is for the GPU - It's for the HDMI port it has, as you know GPUs do come with HDMI ports. For the high power devices part, I don't have anything else connected, or any device that consumes more power than my PC. 

[Brian1965]

Can you please temporarily disable the Nvidia devices in the Sound, video and game controllers section, and also in the Audio inputs and outputs section. This will not disable the GPU, only the audio output from the GPU. I would like you to test the USB audio interface and microphone without any other audio devices being detected by Windows. Try recording some audio with the headset unplugged AND with the headset plugged in. If you are still hearing noise, does the noise change at all when you move the microphone and cable around? Is the microphone/audio input on the USB interface picking up your voice, or is it all noise?

Once you have finished testing, you can re-enable the Nvidia audio devices if required.

[KillStreakArtz]

I disabled everything as you mentioned - Recorded the sound with headset plugged in / unplugged. Moved the microphone around and away from the table. No difference was made. However, it does pick up my voice, but the annoying background noise is there. 

[Brian1965]

I've had a closer look at the last audio sample you uploaded in SoundForge;

I have zoomed into the audio file in both the frequency and amplitude scales for illustration.

Clearly there are 3 main sources of audio noise;

50Hz = The shape (analogue) and frequency of this audio signal indicates that this is mains voltage interference. However, since the frequency is very low in the audio spectrum, this is perceived by the ear as a low level humming sound. You do need to turn the playback volume up a bit to hear this humming sound.

1MHz = This is clearly the dominant frequency in the sound sample, and the main source of the noise in terms of perceived volume. Not knowing the electrical system in your region/country, or local regulations, I can only make some random guesses at to possible sources of this interefence.

Static/EMF = This is the random low level background sound and EMF/RF (Electro-Magnetic/Radio Frequency) that is radiated from vitually every known electrical device. Since these frequencies are mostly beyond our hearing range, and are usually at a significantly lower audio level, this noise is mostly ignored, (unless you're in a recording studio).

I would recommend you check the following;

1) Make sure there are no strong RF emitting devices near the computer, e.g. mobile phone(s) are a classic source of interference, 3G/4G tablets, etc.

2) Make sure you are NOT using any electrical lighting dimmer switches, e.g. lamps, LED strips, etc.

3) Electrical transformers and motors are notorious for generating low frequencies, (e.g. ~50 - 16,000Hz) and electrical noise. Devices that have motors include; power generators, water pumps (liquid cooling?), Air Conditioning pumps, refridgerators, chillers, desk fans, internal PC fans, etc. Usually this electrical noise is suppressed electrically by means of capacitors and other components, but occassionally, these components do fail.

IMPORTANT: Most domestic and business properties employ a ring-mains electrical system. i.e. several wall sockets are connected to the same fuse/breaker in the fuse box/distribution board. The source of your electrical interference may not necessarily be in the same room as you.

If none of the above fixes the problem, then as a last resort, try moving the computer to a different room and testing the audio, or better still, to a different building. If nothing changes then there is clearly an issue with the PC internally.

[KillStreakArtz]

I do have RGB LEDs installed in my PC. They've been in there for a long time, since I bought a PC. I'll try to do everything as you mentioned and then get back to you. I don't keep my phones on my table, they're usually in my pocket or lying somewhere else in the room.

[KillStreakArtz]

I tried everything, including ; 

1. Connected the PC to another power socket through an extension.
2. Turned off the nearby Wifi Router, placed all my 4G devices far away from the PC.
3. Made sure no heavy devices were connected to the same extension as the PC.