Noise Reduction Software - 6 Best Apps for Audio Noise Reduction (Free)
drivers - Microphone - static background noise suppression on Linux - Unix & Linux Stack Exchange
Conference Speaker and Microphone - EMEET Luna 360° Voice Pickup w/Noise Reduction/Mute/Indicator USB Bluetooth Speakerphone w/Dongle for 8 People Daisy Chain for 16 Compatible with Leading Software Speakers - Newegg.com
How To: Reduce Room Noise of Microphone Recordings with Studio One V3 Prime - YouTube
Remove Background Noise from Video or Audio with Free Software - YouTube