Downloads of v 0.5.2:


Last Update:

29 Sep 2020

Package Maintainer(s):

Software Author(s):

  • Oblique Audio


round trip latency measure daw digital audio low interface loopback

RTL Utility

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0.5.2 | Updated: 29 Sep 2020



Downloads of v 0.5.2:



Software Author(s):

  • Oblique Audio

  • 1
  • 2
  • 3
RTL Utility 0.5.2

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  • 2
  • 3

Some Checks Are Exempted or Have Failed

Not All Tests Have Passed

Validation Testing Passed

Verification Testing Exemption:

TLS encryption incompatible


Scan Testing Resulted in Flagged:

This package was submitted (and approved) prior to automated virus scanning integration into the package moderation processs.

We recommend clicking the "Details" link to make your own decision on installing this package.


To install RTL Utility, run the following command from the command line or from PowerShell:


To upgrade RTL Utility, run the following command from the command line or from PowerShell:


To uninstall RTL Utility, run the following command from the command line or from PowerShell:


NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Enter your internal repository url

(this should look similar to

4. Choose your deployment method:

choco upgrade rtl-utility -y --source="'STEP 3 URL'" [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:

choco upgrade rtl-utility -y --source="'STEP 3 URL'"

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0

Exit $exitCode

- name: Ensure rtl-utility installed
    name: rtl-utility
    state: present
    version: 0.5.2
    source: STEP 3 URL

See docs at

chocolatey_package 'rtl-utility' do
  action    :install
  version  '0.5.2'
  source   'STEP 3 URL'

See docs at

    Name: rtl-utility,
    Version: 0.5.2,
    Source: STEP 3 URL

Requires Otter Chocolatey Extension. See docs at

cChocoPackageInstaller rtl-utility
   Name     = 'rtl-utility'
   Ensure   = 'Present'
   Version  = '0.5.2'
   Source   = 'STEP 3 URL'

Requires cChoco DSC Resource. See docs at

package { 'rtl-utility':
  provider => 'chocolatey',
  ensure   => '0.5.2',
  source   => 'STEP 3 URL',

Requires Puppet Chocolatey Provider module. See docs at

salt '*' chocolatey.install rtl-utility version="0.5.2" source="STEP 3 URL"

See docs at

5. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

This package was approved by moderator flcdrg on 07 Nov 2020.


RTL Utility is a tool for measuring the Round Trip Latency of your Digital Audio Workstation (DAW) and audio interface. The utility is used for low latency performance testing by system builders, reviewers, device manufacturers and at

When your DAW sends data to your audio interface for playback, it doesn’t send a continuous stream of data one bit at a time. What it does is fill up a section of RAM called a buffer and sends that in a single message when it is ready. Before sending the next message it has to fill the buffer again. This wait time introduces a latency, or delay, between something happening in your DAW and when you actually hear it.

While you are recording, the audio interface buffers and sends data to your DAW in a similar fashion. This introduces latency into your recordings.

If you send a signal from your DAW, out through the audio interface and back in via a loopback patch, then there will be a round trip latency which is the sum of the output and input delays. This is the RTL.

Package parameters

  • /InstallDir - Installation directory, by default Chocolatey tools directory.
    Example: choco install rtl-utility --params "/InstallDir:C:\your\install\path"

Please Note: This is an automatically updated package. If you find it is
out of date by more than a day or two, please contact the maintainer(s) and
let them know the package is no longer updating correctly.

$ErrorActionPreference = 'Stop';

$packageArgs = @{
  packageName    = $env:ChocolateyPackageName  
  url            = ''
  checksum       = '0dfc13bc35e93123265e0f713c465f2c895f4c8124f55b1ca74dbb0027a45f1d'
  checksumType   = 'sha256'
  url64          = ''
  checksum64     = '98394fc4d1661e3c2b47228eaeb2d1ee1eca3ba1bc0193b054ef72df3a0fcfa0'
  checksumType64 = 'sha256'

$toolsPath = Split-Path $MyInvocation.MyCommand.Definition
$pp = Get-PackageParameters

$installDir = $toolsPath
if ($pp.InstallDir)
  $installDir = $pp.InstallDir
Write-Host "$env:ChocolateyPackageName is going to be installed in '$installDir'"

# Exe name is platform dependant - leave in URL for automatic updater
if ((Get-ProcessorBits -ge 64) -and
  $exeName = [System.IO.Path]::GetFileName($packageArgs['url64'])
  $exeName = [System.IO.Path]::GetFileName($packageArgs['url'])
# Full file path is only known after exe name
$packageArgs['fileFullPath'] = [System.IO.Path]::Combine($installDir, $exeName)

Get-ChocolateyWebFile @packageArgs

Log in or click on link to see number of positives.

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.

Version Downloads Last Updated Status
RTL Utility 0.5.1 82 Friday, June 12, 2020 Approved

Discussion for the RTL Utility Package

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  • This discussion is only about RTL Utility and the RTL Utility package. If you have feedback for Chocolatey, please contact the Google Group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
  • The maintainers of this Chocolatey Package will be notified about new comments that are posted to this Disqus thread, however, it is NOT a guarantee that you will get a response. If you do not hear back from the maintainers after posting a message below, please follow up by using the link on the left side of this page or follow this link to contact maintainers. If you still hear nothing back, please follow the package triage process.
  • Tell us what you love about the package or RTL Utility, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
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