Lawo R3LAY

Spec sheet

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.Read 9 Oct 2026 · docs.lawo.com

Support

Lawo directs users with questions or update support needs to contact Lawo Support.Read 9 Oct 2026 · docs.lawo.com

Headquarters

Rastatt, GermanyRead 28 Sep 2026 · docs.lawo.com

Audio drivers

VPB works with non-proprietary ASIO, WDM, WASAPI and MME audio interface drivers.Read 9 Oct 2026 · docs.lawo.com

Distribution

R3LAY VPB is delivered as a software download, requires a customer login to download, and requires a valid software license for activation.Read 9 Oct 2026 · docs.lawo.com

Documentation

The R3LAY knowledge page links user guides for VSC, VPB, VRX4, VRX8, AoIP Stream Monitor and advanced options.Read 9 Oct 2026 · docs.lawo.com

Downloads

Installers are available through the Lawo Download Center after login.Read 9 Oct 2026 · docs.lawo.com

Ember+ integration

R3LAY VPB supports an Ember+ Sink Source Matrix, which Lawo notes may break integrations that use its old Ember+ Matrix.Read 9 Oct 2026 · docs.lawo.com

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.Read 9 Oct 2026 · docs.lawo.com

Product family

R3LAY includes Virtual Sound Card (VSC), Virtual Patchbay (VPB), VRX4, VRX8, and AoIP Stream Monitor.Read 9 Oct 2026 · docs.lawo.com

RAVENNA

VPB includes native RAVENNA support for sending and receiving audio streams over an IP network.Read 9 Oct 2026 · docs.lawo.com

Release

The listed current R3LAY release is version 4.2.0, build 4.2.0.166, dated 2025-12-12.Read 9 Oct 2026 · docs.lawo.com

Stream monitoring

AoIP Stream Monitor is a tool for monitoring RAVENNA streaming connections.Read 9 Oct 2026 · docs.lawo.com

Supported systems

R3LAY products are compatible with Windows 10 and 11 and Windows Server 2019 and 2022.Read 9 Oct 2026 · docs.lawo.com

Virtual machines

R3LAY can run on a virtual machine, but the system may need adjustments to handle real-time audio.Read 9 Oct 2026 · docs.lawo.com

Virtual mixers

The R3LAY product family describes VRX4 and VRX8 as Virtual Radio Mixers.Read 9 Oct 2026 · docs.lawo.com

Virtual Patchbay

R3LAY VPB manages audio streams on a Windows computer and can route audio between hardware interfaces and software clients.Read 9 Oct 2026 · docs.lawo.com

Virtual Sound Card

R3LAY VSC connects RAVENNA audio streams to and from software clients running on a PC.Read 9 Oct 2026 · docs.lawo.com

VSC connection limits

VSC supports up to eight incoming and eight outgoing connections to RAVENNA streams or virtual audio drivers.Read 9 Oct 2026 · docs.lawo.com

VSC connections

R3LAY VSC supports up to eight incoming and eight outgoing connections to RAVENNA streams or virtual audio drivers.Read 9 Oct 2026 · docs.lawo.com

VSC monitoring

VSC provides prelisten monitoring for incoming RAVENNA streams and a 1 kHz test tone generator for outgoing streams.Read 9 Oct 2026 · docs.lawo.com

VSC processing limit

VSC handles one-to-one connections and does not include mixing or DSP capability.Read 9 Oct 2026 · docs.lawo.com

VSC purpose

R3LAY VSC connects RAVENNA audio streams to and from software clients running on a PC.Read 9 Oct 2026 · docs.lawo.com

Where Specifiction places it

• Audio Mixing Software#18 of 287.3