74,139,804 programs installed

Should I remove SigmaTel Audio?

What percent of users and experts removed it?
12% remove it88% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #1,538
United States Rank #947
Reach 0.5251%
Installation trends (last 30 days)
Uninstallation trends (last 30 days)
Lifespan of installation (until removal)
< 21.26 days
627.08 days >
Average installed length: 329.48 days


5.10.5210.0 32.38%
5.10.5207.0 3.98%
5.10.5205.0 1.66%
5.10.5201.0 0.37%
5.10.5102.0 22.33%
5.10.5003.0 8.38%
5.10.4821.0 2.68%
5.10.4820.0 5.69%
5.10.4811.0 1.90%
5.10.4803.0 7.43%
5.10.4802.0 0.20%
5.10.4700.0 0.75%
5.10.4650.0 0.52%
5.10.4610.0 0.16%
5.10.4600.0 7.09%
5.10.4521.0 0.15%
5.10.4511.0 0.49%
5.10.4505.0 1.43%
5.10.4501.0 0.37%
5.10.4500.0 0.12%
5.10.4493.0 0.88%
5.10.4441.0 0.23%
5.10.4350 0.16%
1.0.5921.5 0.64%

Typically installed together

SigmaTel Audio

What is SigmaTel Audio?

SigmaTel Audio is (was) a line of audio codec chips that were integrated into many desktops, notebooks, and other audio playback devices, notably MP3 players. Audio encoding and recording to flash memory in MP3 and WAV formats are supported from microphone, SigmaTel FM IC (STFM1000) digital audio source, or line-in. Printed Circuit Board (PCB) layouts and reference schematics were provided to OEM and Original Development Manufacturing (ODM) customers, driving easy manufacturing.


The most common release is 5.10.5210.0, with over 98% of all installations currently using this version. During setup, the program creates a startup registration point in Windows in order to automatically start when any user boots the PC. Upon being installed, the software adds a Windows Service which is designed to run continuously in the background. Manually stopping the service has been seen to cause the program to stop functing properly. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. The primary executable is named pstubxx.exe. The setup package generally installs about 98 files and is usually about 25.96 MB (27,221,894 bytes).

Program detailsProgram details

URL: www.SigmaTel.com
Installation folder: C:\Program Files\SigmaTel\C-Major Audio
Uninstaller: RunDll32 C:\Program Files1\COMMON~1\INSTAL~1\PROFES~1\RunTime\10\01\Intel32\Ctor.dll,LaunchSetup "C:\Program Files\InstallShield Installation Information\{A
Estimated size: 25.96 MB
Language: English

Program filesFiles installed by SigmaTel Audio

Program executable:pstubxx.exe
Path:C:\Program Files\SigmaTel\C-Major Audio\pstubxx.exe
Additional files:
  • stacapi.dll - C-Major Audio
  • staco.dll - NDRC
  • staco64.dll
  • stacsv.exe - STacSV Module
  • stacsv64.exe
  • stapi64.dll
  • stapo64.dll - Audio LFX/GFX
  • stlang.dll - Localize Module
  • stlang64.dll
  • stsystra.exe - Sigmatel Audio system tray application
  • sttray.exe
  • sttray64.exe
  • suhlp.exe
  • suhlp64.exe
  • asiosthd.dll
  • asiovist.dll
  • localize.dll
  • spdifcp.dll
  • stapi32.dll
  • stapo.dll
  • stcplx.dll - Audio CPL Extentions
  • stcplx64.dll
  • install.exe (by Toshiba America Information Systems, Inc) - SigmaTel High Definition Audio
  • setup.exe (by InstallShield Software) - InstallShield (R)
  • WBDEL44I.DLL (by Wilson WindowWare) - WIL DLL (WIL Script Processor DLL)
  • regfill.exe

Program behaviorsBehaviors exhibited

  • stacsv.exe runs as a service named 'SigmaTel Audio Service' (STacSV) "Manages SigmaTel Audio Universal Jack configurations.".
2 Startup Files (All Users Run)
  • setup.exe is loaded in the all users (HKLM) registry as a startup file name 'AudioSetup' which loads as C:\Program Files\IDT\IntelXPV_v103\setup.exe -postqfe.
  • stsystra.exe is loaded in the all users (HKLM) registry as a startup file name 'SigmatelSysTrayApp' which loads as C:\Program Files\SigmaTel\C-Major Audio\WDM\stsystra.exe.

Program resource utilizationResource utilization averages

Memory:2.71 MB
21.09 MB average
Total CPU:0.0005623792%
0.031193% average
Kernel CPU:0.00037387%
0.016088% average
User CPU:0.00018851%
0.015104% average
70 average
I/O reads/min:21 Bytes
435.61 KB average
Memory:5.63 MB
Total CPU:0.0026534101%
Kernel CPU:0.00186558%
User CPU:0.00078783%

How do I remove SigmaTel Audio?

Quickly and completely remove SigmaTel Audio from your computer by downloading "Should I Remove It?", its 100% FREE and installs in seconds (click the button below).
Or, you can uninstall SigmaTel Audio from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program SigmaTel Audio, click it, and then do one of the following:
    • Windows Vista/7/8: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove SigmaTel Audio.

Win XP 45%
Win Vista (SP1) 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 12%
Keep it 88%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows XP 46.82%
Windows Vista 33.93%
Windows 7 17.41%
Windows 8 1.78%
Windows Server 2003 0.05%
Which OS releases does it run on?
Microsoft Windows XP 46.75%
Windows Vista Home Premiu... 23.91%
Windows 7 Ultimate 6.56%
Windows 7 Home Premium 6.31%
Windows Vista Home Basic 5.79%
Windows 7 Professional 3.83%

Distribution by countryGeography

68.51% of installs come from the United States
Which countries install it?
  United States 68.51%
  United Kingdom 4.77%
  Canada 3.27%
  Germany 2.66%
  France 1.85%
  Australia 1.32%
  India 0.95%
  Japan 0.94%
  Brazil 0.80%
  Mexico 0.75%
  Spain 0.74%
  Italy 0.73%
  Iran 0.72%
  Netherlands 0.64%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 85.87%
Intel 5.26%
Gateway 4.84%
Sony 1.96%
Toshiba 0.68%
Hewlett-Packard 0.44%
Sahara 0.42%
American Megatrends 0.30%
Apple 0.23%
Common models
Dell Inspiron 1525 8.49%
Dell MM061 5.89%
Dell Dimension E521 5.51%
Dell Latitude D630 5.35%
Dell Dell DXP061 4.75%
Dell Dell DM061 4.73%

About SigmaTel

SigmaTel is a System On a Chip SOC electronics and software provider that designs turnkey portable compressed AV media player/recorder SOCs, reference circuit boards, SOC Software Development Kits, media player software apps, and controller chips for multifunction peripherals.


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