DeepFilterNet vs SoliCall Noise Firewall

DeepFilterNet is a free, open-source framework for speech enhancement on full-band 48 kHz audio, using deep filtering. Its command-line tool suppresses noise in WAV files, with 48 kHz as its only supported sampling rate. A LADSPA plugin provides real-time noise suppression and can be used with PipeWire filter chains to create a virtual microphone or audio output, including for VoIP apps such as Zoom or Discord. The plugin's minimum latency is 20 ms from STFT processing, plus any delay added by the LADSPA host. The Rust command-line tool defaults to DeepFilterNet2; the Python interface documents DeepFilterNet and DeepFilterNet2. An optional post-filter may slightly over-attenuate very noisy sections. The framework supports Linux, macOS and Windows, though training is tested only under Linux. The Python package installs as deepfilternet, and an optional train extra adds data-loading functionality for Linux training. Code is available under either the MIT License or Apache License 2.0.

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.