Downloads of v 1.2:


Last Update:

06 Aug 2017

Package Maintainer(s):

Software Author(s):

  • jthedering


Sound Audio Windows Equalizer ASIO admin

Equalizer APO

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1.2 | Updated: 06 Aug 2017



Downloads of v 1.2:



Software Author(s):

  • jthedering

  • 1
  • 2
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Equalizer APO 1.2

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Not All Tests Have Passed

Validation Testing Passed

Verification Testing Passed


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.

Learn More

Deployment Method: Individual Install, Upgrade, & Uninstall

To install Equalizer APO, run the following command from the command line or from PowerShell:


To upgrade Equalizer APO, run the following command from the command line or from PowerShell:


To uninstall Equalizer APO, 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 equalizerapo -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 equalizerapo -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 equalizerapo
    name: equalizerapo
    version: '1.2'
    state: present

See docs at

chocolatey_package 'equalizerapo' do
  action    :install
  source   'INTERNAL REPO URL'
  version  '1.2'

See docs at

cChocoPackageInstaller equalizerapo
    Name     = "equalizerapo"
    Version  = "1.2"
    Source   = "INTERNAL REPO URL"

Requires cChoco DSC Resource. See docs at

package { 'equalizerapo':
  ensure   => '1.2',
  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.

Private CDN cached downloads available for licensed customers. Never experience 404 breakages again! Learn more...

This package was approved as a trusted package on 09 Jul 2020.


Equalizer APO is a parametric equalizer for Windows. It is implemented as an Audio Processing Object (APO) for the system effect infrastructure introduced with Windows Vista.


  • virtually unlimited number of filters
  • works on any number of channels
  • very low latency, which makes it suited for interactive applications
  • low CPU usage


  • Windows Vista or later (currently only Windows 7, 8 and 8.1 have been tested)
  • Sound card driver must support APOs (this includes most onboard sound drivers)
  • The application must not bypass the system effect infrastructure
    (possible by using special APIs like ASIO)

Equalizer APO is best used in conjunction with Room EQ Wizard ( ), because it can read its filter text file format.

Please have a look at the Wiki ( for instructions on installation and configuration.

$ErrorActionPreference = 'Stop';

$packageName = 'equalizerapo'
$toolsDir   = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)";
$installerType = 'EXE'
$url = '';
$url64 = '';

$packageArgs = @{
  packageName   = $packageName
  unzipLocation = $toolsDir
  fileType      = $installerType
  url           = $url
  url64bit      = $url64
  silentArgs    = '/S'
  validExitCodes= @(0)
  softwareName  = 'equalizerapo*'
  checksum      = '7A554CC24B8DE2710A06EFE0DB762E96DEDD352DDDC592189ECC669AE7059A41'
  checksumType  = 'sha256'
  checksum64      = '29DFF1BA1221939AA805182771FD17FA71AE05A54FA97FD4A3641A521BF19E1C'
  checksumType64  = 'sha256'

#Create monitor for "Configurator" ahead of actually installing the software
$ScriptBlock = {
    #Wait for Configurator.exe to start running
	$configurator_open = $false;
	while (!$configurator_open) {
		Sleep -Seconds 5;
		$configurator_open = (Get-Process 'configurator' -ErrorAction:SilentlyContinue).count -eq 1;
	} #loop ends when we find the process running
    Get-Process 'configurator' | Stop-Process;

Start-Job -Name "Kill Configurator.exe" -ScriptBlock $ScriptBlock | Out-Null;
#Install the package
Install-ChocolateyPackage @packageArgs;
#Cleanup the Job
Remove-Job -Name "Kill Configurator.exe" -Force | Out-Null;
$packageName = 'equalizerapo';
$installerType = 'exe';
$silentArgs = '/S';
$validExitCodes = @(0);
$packages = Get-ItemProperty -Path @( 'HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*', 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*', 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' ) -ErrorAction:SilentlyContinue;
$packages | Where-Object { $_.DisplayName -like "$packageName*" } | ForEach-Object {
    Uninstall-ChocolateyPackage -PackageName "$packageName" -FileType "$installerType" -SilentArgs "$($silentArgs)" -File "$($_.UninstallString)" -ValidExitCodes $validExitCodes;

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
Equalizer APO 517 Monday, April 17, 2017 Approved
Equalizer APO 1.1.2 483 Monday, February 20, 2017 Approved
Equalizer APO 580 Sunday, February 28, 2016 Approved
Equalizer APO 1.0 419 Wednesday, December 2, 2015 Approved

This package has no dependencies.

Discussion for the Equalizer APO Package

Ground Rules:

  • This discussion is only about Equalizer APO and the Equalizer APO 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 Equalizer APO, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
  • If you use a url, the comment will be flagged for moderation until you've been whitelisted. Disqus moderated comments are approved on a weekly schedule if not sooner. It could take between 1-5 days for your comment to show up.
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