---
title: "Delay in Audio on the Telos Alliance xNode"
slug: "delay-in-audio-on-the-telos-alliance-xnode"
updated: 2024-12-16T14:30:06Z
published: 2024-12-16T14:30:06Z
canonical: "docs.telosalliance.com/delay-in-audio-on-the-telos-alliance-xnode"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.telosalliance.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Delay in Audio on the Telos Alliance xNode

## Scope/Problem

Routing a source by Livewire to a destination on the same xNode there will occur some audio delay. This kind of audio delay will not appear on any different physical output anywhere else in the network; only the local node the source comes from.

## Description

If we do route a source by Livewire to a destination on the same xNode there will be some delay. Probably more delay that could be tolerated if you are execting to monitor this in Headphones.

A limit of IGMP (Multicast) is that a device that produces a multicast stream (a Livewire source) can not also subscribe to it. This is not a limit of the Telos Alliance xNode but with multicast in general. In the xNodes (and other Axia products) we treat this as a special case and any *"looping"* of audio must be done in the CPU which is not a real-time OS.

## Solution / Work-Around

In case you need to *"loop"* audio within the same Telos Alliance xNode you need to do it in the build-in Vitual Mixer.

Below, please find a very simple example in case of need. Here we do mix Line Input 1 to the Line Output 1. Using the build-in Virtual Mixer of the xNode and not Livewire channels, there is **zero** delay because the looping is actually happening in the FPGA hardware of the Telos Alliance xNode.

But if you are looping by using Livewire, the delay is expected.

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/091056a7-5b30-4f60-a119-8686de788702-grafik.png?sv=2026-02-06&spr=https&st=2026-11-07T18%3A46%3A46Z&se=2026-11-07T19%3A46%3A46Z&sr=c&sp=r&sig=OrgrZTrxGuxtaS7XMoSm%2Bl%2B70kacFzTyVmEdFtN1Rfg%3D)

## Let us know how we can help

If you have further questions on this topic or have ideas about improving this document, please [contact us](https://www.telosalliance.com/support-request).