Limit audio playback quality: registry value AllowedAudioQualityModeComputerHKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services

Policy ID: TS_CLIENT_AUDIO_QUALITY
Scope: Computer Configuration
Supported on: At least Windows Server 2008 R2 or Windows 7
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: Windows Components › Remote Desktop Services › Remote Desktop Session Host › Device and Resource Redirection

Registry

AllowedAudioQualityMode

REG_DWORDComputer

HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services Current key

Enabled value: Depends on the option value
Element: Audio Quality

Options
Item	Stored value
Dynamic	1
Medium	3
High	7

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services]

; Options (use only one)
; Dynamic
"AllowedAudioQualityMode"=dword:00000001
; Medium
"AllowedAudioQualityMode"=dword:00000003
; High
"AllowedAudioQualityMode"=dword:00000007

CMD

:: Options (use only one)

:: Dynamic
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v "AllowedAudioQualityMode" /t REG_DWORD /d 1 /f
:: Medium
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v "AllowedAudioQualityMode" /t REG_DWORD /d 3 /f
:: High
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v "AllowedAudioQualityMode" /t REG_DWORD /d 7 /f

PowerShell

# Common: create the key
New-Item -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services' -Force | Out-Null

# Options (use only one)
# Dynamic
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services' -Name 'AllowedAudioQualityMode' -PropertyType DWord -Value 1 -Force | Out-Null
# Medium
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services' -Name 'AllowedAudioQualityMode' -PropertyType DWord -Value 3 -Force | Out-Null
# High
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services' -Name 'AllowedAudioQualityMode' -PropertyType DWord -Value 7 -Force | Out-Null