Downloads of v 1.0.1:


Last Update:

10 Nov 2021

Package Maintainer(s):

Software Author(s):

  • Oblique Audio


round trip latency measure daw digital audio low interface loopback

RTL Utility

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1.0.1 | Updated: 10 Nov 2021



Downloads of v 1.0.1:



Software Author(s):

  • Oblique Audio

  • 1
  • 2
  • 3
RTL Utility 1.0.1

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  • 2
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This Package Contains an Exempted Check

Not All Tests Have Passed

Validation Testing Passed

Verification Testing Exemption:

TLS encryption incompatible


Scan Testing Successful:

No detections found in any package files


Deployment Method: Individual Install, Upgrade, & Uninstall

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:


Deployment Method:

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

1. Enter Your Internal Repository Url

(this should look similar to

2. Setup Your Environment

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

2. Get the package into your environment

  • 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. Copy Your Script

choco upgrade rtl-utility -y --source="'INTERNAL REPO 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="'INTERNAL REPO URL'" 

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

Exit $exitCode

- name: Install rtl-utility
    name: rtl-utility
    version: '1.0.1'
    state: present

See docs at

chocolatey_package 'rtl-utility' do
  action    :install
  source   'INTERNAL REPO URL'
  version  '1.0.1'

See docs at

cChocoPackageInstaller rtl-utility
    Name     = "rtl-utility"
    Version  = "1.0.1"
    Source   = "INTERNAL REPO URL"

Requires cChoco DSC Resource. See docs at

package { 'rtl-utility':
  ensure   => '1.0.1',
  provider => 'chocolatey',
  source   => 'INTERNAL REPO URL',

Requires Puppet Chocolatey Provider module. See docs at

4. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

There are versions of this package awaiting moderation . See the Version History section below.

This package was approved by moderator Windos on 14 Nov 2021.


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       = '8fd022746a6179773c912a27bed27b2835a95cdf0b2c086a9c97f3b77ea43f46'
  checksumType   = 'sha256'
  url64          = ''
  checksum64     = '4182226b1ed70e2c64425b73b7e42d4bc30d43f6633999326e59b2565215246f'
  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.

Add to Builder Version Downloads Last Updated Status
RTL Utility 1.0.2 9 Friday, November 19, 2021 Ready
RTL Utility 1.0.0 30 Saturday, October 2, 2021 Approved
RTL Utility 0.5.2 135 Tuesday, September 29, 2020 Approved
RTL Utility 0.5.1 117 Friday, June 12, 2020 Approved

Discussion for the RTL Utility Package

Ground Rules:

  • 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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