NoiseTorch-ng vs SoliCall Noise Firewall

NoiseTorch-ng is a free, open-source Linux application that reduces microphone noise in real time. It uses RNNoise and works with PulseAudio or PipeWire, creating a virtual “Filtered Microphone” for applications such as OBS, Mumble, and Discord. The project describes setup as a two-click process and distributes the app as a small, statically linked binary. A Voice Activation Threshold can be set as high as 95%, or set to 0% to dampen noise without deactivating the microphone. Optional output filtering routes applications through a virtual “Filtered Headphones” device. Microphone filtering adds 10 ms of inherent latency; output filtering is approximately 100 ms with PulseAudio. The project reports a suspected update-server and repository breach, says no malicious code was found, and says updates are retrieved from GitHub releases. GitHub reports no SECURITY.md file or published security advisories. Troubleshooting guidance, including how to collect debug logs, is in the project wiki. The latest listed release is v0.12.2, released June 17.

SoliCall Noise Firewall is software for call centers and other crowded workspaces that reduces ambient noise and nearby voices so customers are less likely to overhear other conversations. It can remove background voices from agents and supervisors as well as other ambient sounds. SoliCall says the noise reduction can improve transcription and other voice analytics accuracy. The product correlates audio across calls to produce a Noise Map and statistics for finding noisy agents and monitoring call quality. A browser-based dashboard provides live call statistics and aggregated statistics for completed calls. Deployment can be centralized or distributed, and the product can run on-premise without a cloud connection; SoliCall says monitoring data stays on-premise rather than being sent to its cloud servers. SoliCall Connect works with Windows softphones and browser-based softphones, including WebRTC options. PBXMate for Call Centers connects to telephony infrastructure over SIP as a phone proxy or PBX trunk. Pricing is available by contacting SoliCall, which invites prospective customers to request an evaluation version of PBXMate for Call Centers.