Lawo R3LAY

Paid Windows

What Lawo R3LAY is

Lawo R3LAY is a Windows software family for radio and broadcast audio streams. It includes Virtual Sound Card, Virtual Patchbay, VRX4 and VRX8 Virtual Radio Mixers, and AoIP Stream Monitor. Virtual Sound Card connects RAVENNA streams with PC software clients, supporting up to eight incoming and eight outgoing connections, prelisten monitoring, and a 1 kHz test tone; it handles one-to-one connections without mixing or DSP. Virtual Patchbay routes audio between hardware interfaces and software clients, supports ASIO, WDM, WASAPI, and MME drivers, and provides native RAVENNA networking. VSC, VPB, and AoIP Stream Monitor integrate with HOME for stream routing. VPB adds dynamic sender and receiver creation and crosspoint switching. Products support Windows 10, 11, Server 2019, and Server 2022, including virtual machines that may need real-time audio adjustments.

Who it suits

R3LAY suits radio and broadcast teams managing RAVENNA and other audio streams on Windows systems. It is relevant to users needing virtual routing, monitoring, or virtual radio mixers.

What it does well

Supports Windows 10 and 11
Native RAVENNA support in VPB
HOME integration for stream routing
Multiple standard audio driver formats
Includes virtual radio mixer products

What to know first

VSC has no mixing or DSP
VSC limited to eight connections each way
Virtual machines may need audio adjustments
VPB download requires login and license

Verdict

R3LAY provides several Windows tools for routing, connecting, mixing, and monitoring broadcast audio streams. Review VSC limits and VPB licensing requirements alongside your integration needs.

Facts from Lawo R3LAY's own pages

Audio drivers: VPB works with non-proprietary ASIO, WDM, WASAPI and MME audio interface drivers. · docs.lawo.com, 9 Oct 2026
Distribution: R3LAY VPB is delivered as a software download, requires a customer login to download, and requires a valid software license for activation. · docs.lawo.com, 9 Oct 2026
Documentation: The R3LAY knowledge page links user guides for VSC, VPB, VRX4, VRX8, AoIP Stream Monitor and advanced options. · docs.lawo.com, 9 Oct 2026
Downloads: The R3LAY documentation page links PDF user guides for VSC, VPB, VRX4, VRX8, AoIP Stream Monitor, and advanced options. · docs.lawo.com, 9 Oct 2026
Ember+ integration: R3LAY VPB supports an Ember+ Sink Source Matrix, which Lawo notes may break integrations that use its old Ember+ Matrix. · docs.lawo.com, 9 Oct 2026
Headquarters: Rastatt, Germany · docs.lawo.com, 28 Sept 2026
HOME integration: R3LAY VSC, VPB, and AoIP Stream Monitor support integration with HOME, including stream routing; VPB also supports dynamic sender and receiver creation and crosspoint switching. · docs.lawo.com, 9 Oct 2026
Platforms: The maker lists compatibility with Windows 10 and 11, plus Windows Server 2019 and 2022; virtual machine use is possible with system tweaks for real-time audio. · docs.lawo.com, 9 Oct 2026
Product family: R3LAY includes Virtual Sound Card (VSC), Virtual Patchbay (VPB), VRX4, VRX8, and AoIP Stream Monitor. · docs.lawo.com, 9 Oct 2026
RAVENNA: VPB includes native RAVENNA support for sending and receiving audio streams over an IP network. · docs.lawo.com, 9 Oct 2026
Release: The R3LAY release notes identify version 4.2.0.166, released December 12, 2025, for the R3LAY family products. · docs.lawo.com, 9 Oct 2026
Stream monitoring: AoIP Stream Monitor is a tool for monitoring RAVENNA streaming connections. · docs.lawo.com, 9 Oct 2026
Support: Lawo directs users with questions or update support needs to contact Lawo Support. · docs.lawo.com, 9 Oct 2026
Supported systems: R3LAY products are compatible with Windows 10 and 11 and Windows Server 2019 and 2022. · docs.lawo.com, 9 Oct 2026
Virtual machines: R3LAY can run on a virtual machine, but the system may need adjustments to handle real-time audio. · docs.lawo.com, 9 Oct 2026
Virtual mixers: The R3LAY product family describes VRX4 and VRX8 as Virtual Radio Mixers. · docs.lawo.com, 9 Oct 2026
Virtual Patchbay: R3LAY VPB manages audio streams on a Windows computer and can route audio between hardware interfaces and software clients. · docs.lawo.com, 9 Oct 2026
Virtual Sound Card: R3LAY VSC connects RAVENNA audio streams to and from software clients running on a PC. · docs.lawo.com, 9 Oct 2026
VSC connection limits: VSC supports up to eight incoming and eight outgoing connections to RAVENNA streams or virtual audio drivers. · docs.lawo.com, 9 Oct 2026
VSC connections: R3LAY VSC supports up to eight incoming and eight outgoing connections to RAVENNA streams or virtual audio drivers. · docs.lawo.com, 9 Oct 2026
VSC monitoring: VSC provides prelisten monitoring for incoming RAVENNA streams and a 1 kHz test tone generator for outgoing streams. · docs.lawo.com, 9 Oct 2026
VSC processing limit: VSC handles one-to-one connections and does not include mixing or DSP capability. · docs.lawo.com, 9 Oct 2026
VSC purpose: R3LAY VSC connects RAVENNA audio streams to and from software clients running on a PC. · docs.lawo.com, 9 Oct 2026

Where Lawo R3LAY stands on Freedom251

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