Alt Denoiser vs SoliCall Noise Firewall

Alt Denoiser is a real-time audio noise suppression plugin based on DeepFilterNet. It is free and open source, with precompiled downloads for Windows, macOS and Linux in VST3, VST2, AU, LV2 and Standalone formats. DeepFilterNet3 models are bundled, so no separate model download is needed. The plugin accepts any host sample rate and resamples automatically. Its interface has an attenuation control and input and output RMS meters. Version 1.0.2 supports mono-to-mono, stereo-to-stereo and mono-to-stereo routing, and declares 1,920 samples of latency for startup and reset FIFO prefill. Release notes mention fixes for stutter and dropouts in EqualizerAPO and DAWs at standard host buffer sizes. Linux build instructions cover Ubuntu/Debian, Fedora and Arch; building from source requires CMake 3.15 or later, Rust and a C++ compiler. The project is licensed under GPLv3 and directs questions and bug reports to GitHub Issues. macOS binaries target macOS 14.0 and later.

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.