What is AESTSr64.exe?

The genuine AESTSr64.exe file is a software component of APO Access Service by Andrea Electronics.
AESTSr64.exe is an executable file that belongs to the APO Access Service, a software that is used to filter out background noise while using a microphone. This is not an essential Windows process and can be disabled if known to create problems. The Andrea Electronics Corporation is an American company that develops technology solutions in digital array microphones and noise reduction software. The company was founded by Frank A.D. Andrea Sr. in 1934 and began producing equipment for radio stations. In the 1950s, the company provided the audio system for NASA's Mercury spacecraft. Andrea Electronics is currently headquartered in Bohemia, New York, United States.

AESTSr64 stands for Andrea Electronics System Tray Audio Service (64-bit)

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the AESTSr64.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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AESTSr64.exe file information

Windows Task Manager with AESTSr64
AESTSr64.exe process in Windows Task Manager

The process known as Andrea filters APO access service (version (64-bit)) belongs to software APO Access Service (version (64-bit)) by Andrea Electronics (

Description: AESTSr64.exe is not essential for the Windows OS and causes relatively few problems. The file AESTSr64.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 89,600 bytes (99% of all occurrences) or 98,312 bytes. 
The program is not visible. It is not a Windows core file. The AESTSr64.exe file is a Microsoft signed file. Therefore the technical security rating is 22% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to do the following:
  • ask the software vendor, [1][2], for advice
  • remove the entire program IDT Audio or Tempo Semiconductor, Inc. using Windows Control Panel

Recommended: Identify AESTSr64.exe related errors

If AESTSr64.exe is located in a subfolder of C:\Windows\System32, the security rating is 16% dangerous. The file size is 89,600 bytes (97% of all occurrences), 86,016 bytes or 88,576 bytes. The program has no visible window. It is a Microsoft signed file. The AESTSr64.exe file is not a Windows system file.

Important: Some malware camouflages itself as AESTSr64.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the AESTSr64.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

AESTSr64.exe is part of APO Access Service (64-bit) developed by Andrea Electronics Corporation.
Apparently it is a microphone noise filltering process, in other words it does some (probably fourier) transformation on sound input to remove background noise. The name alarmed me as well (what the h*** is Andrea doing with my PC, I didn't invite her). But apparently harmless and needed
  SLF   (further information)
It's probably useful in certain ways as described by one of the users here however it conflicts with the standard sound output. The reason being is that it may trigger the PC speakers output at random and all haphazardly probably due to detecting a specific frequency range. The program will then attempt to filter that noise or something such as that whilst using headset/earphones which should be activated all the time instead of having this conflict. Because sometimes the sound of the PC speakers can disturb people nearby even though when using earphones for example, so strange bug it is.
  KimKat   (further information)

Summary: Average user rating of AESTSr64.exe: based on 4 votes with 3 user comments. One user thinks AESTSr64.exe is essential for Windows or an installed application. 2 users think it's probably harmless. One user thinks it's neither essential nor dangerous. One user is not sure about it.

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Best practices for resolving AESTSr64 issues

A clean and tidy computer is the key requirement for avoiding problems with AESTSr64. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the AESTSr64.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

AESTSr64.exe [all]