Measurement Software


FREQUENT DOWNLOADS





AP2700 Control Software 3.3 SP2 (9.89 MB)

Compatible with 2700 Series, System Two Cascade, and System Two Cascade Plus.

Version 3.3 SP2 (and SP1) supports 64-bit Windows 7 using the APIB-USB adapter. The OPT-2711 (Dolby Digital generator option) is not supported. Instruments with OPT-2711 installed will function correctly on a 64-bit PC, but the Dolby Digital generator will not be available.

For Windows 8, please also download the AP2700 Windows 8 USB Drivers and follow the included instructions.

More detailed information is available on our AP Software and Windows Compatibility chart




AP2700 DspRiff4.ocx Update 3.3x (344.00 KB)
  1. AP2700 v3.30 has an issue with the Import .wav File function, causing file truncation and frequency error correction problems. This can be corrected by replacing the DspRiff4.ocx file in the C:Program FilesCommon FilesAudio Precision folder with this version.
    This issue has been corrected in AP2700 v3.30 SP1. We recommend that you download and install SP1 or later instead of just replacing this file, as it addresses some other issues as well as adds a driver for 64-bit versions of Windows.



APWIN Control Software 2.24 (24.09 MB)

APWIN Control software. For all System One and System Two models.




APx Hearing Instrument Analyzer Software 4.4 (5.6 MB)

Automated test software for the APx511 Hearing Instrument Audio Analyzer. The APx500 Measurement Software of the same version must already be installed before installing this software.




APx500 Measurement Software 4.2.1 (124.7 MB)

APx500 measurement software for all APx Series instruments.

This download is suitable for most users. If Microsoft .NET version 4.5 is not already on your PC, it will be downloaded during the installation.

For PCs that do not have .NET version 4.5 installed, and are not connected to the Internet, download the full installer instead (APx500 Measurement Software (with .NET)) NOTE: .NET 4.5 does not support Microsoft Windows XP.

Additional information:

APx500 What's New
AP Software and Windows Compatibility chart




APx500 Measurement Software 4.3 (134.6 MB)

APx500 measurement software for all APx Series instruments.

This download is suitable for most users. If Microsoft .NET version 4.5 is not already on your PC, it will be downloaded during the installation.

For PCs that do not have .NET version 4.5 installed, and are not connected to the Internet, download the full installer instead (APx500 Measurement Software (with .NET)) NOTE: .NET 4.5 does not support Microsoft Windows XP.

Additional information:

APx500 What's New
AP Software and Windows Compatibility chart




APx500 Measurement Software 4.4 (134.6 MB)

APx500 measurement software for all APx Series instruments.

This download is suitable for most users. If Microsoft .NET version 4.5 is not already on your PC, it will be downloaded during the installation.

For PCs that do not have .NET version 4.5 installed, and are not connected to the Internet, download the full installer instead (APx500 Measurement Software (with .NET)) NOTE: .NET 4.5 does not support Microsoft Windows XP.

Additional information:

AP Software and Windows Compatibility chart




APx500 Measurement Software (with .NET) 4.2.1 (190.57 MB)

APx500 Measurement Software for all APx Series instruments.

This download includes the Microsoft .NET Framework version 4.5, and is suitable for installation on PCs that are not connected to the Internet and do not already have version 4.5 installed. NOTE: .NET 4.5 does not support Microsoft Windows XP.

For installation on Internet connected PCs, download APx500 Measurement Software instead.

Additional information:

APx500 What's New
AP Software and Windows Compatibility




APx500 Measurement Software (with .NET) 4.3 (201.9 MB)

APx500 Measurement Software for all APx Series instruments.

This download includes the Microsoft .NET Framework version 4.5, and is suitable for installation on PCs that are not connected to the Internet and do not already have version 4.5 installed. NOTE: .NET 4.5 does not support Microsoft Windows XP.

For installation on Internet connected PCs, download APx500 Measurement Software instead.

Additional information:

APx500 What's New
AP Software and Windows Compatibility




APx500 Measurement Software (with .NET) 4.4 (201.9 MB)

APx500 Measurement Software for all APx Series instruments.

This download includes the Microsoft .NET Framework version 4.5, and is suitable for installation on PCs that are not connected to the Internet and do not already have version 4.5 installed. NOTE: .NET 4.5 does not support Microsoft Windows XP.

For installation on Internet connected PCs, download APx500 Measurement Software instead.

Additional information:

AP Software and Windows Compatibility




APx500 What's New 1.0 (200.33 KB)

Describes new features in the latest release of the APx500 measurement software. Additional information can be found in the latest Read Me.




APx500 What's New 4.3 (136.06 KB)

Describes new features in the latest release of the APx500 measurement software. Additional information can be found in the latest ReadMe, which is included in the software download.




APx555 Firmware Update for use of APx500 Software V4.2 and Earlier 4.3 (220.07 KB)

FirmwareUpdateB4AIv2.0 is a firmware patch.

If you have purchased a new APx555 analyzer on or after June 22, 2016, with serial number 11255 or greater, and you wish to operate this analyzer with older versions of APx500 (specifically v4.0, v4.1 or v 4.2.1), you must download and install this patch. Note that versions previous to v4.0 do not support APx555 hardware under any circumstances.

This patch is not required if you are using the current version of APx500 software, version 4.3, which has been provided with your instrument and is available for download from this web site.




ATS Control Software 1.6 SP1 (8.17 MB)

For ATS-2 analyzer. Version 1.60 SP1 (Service Pack 1) adds support for 64-bit Windows 7 using the APIB-USB adapter.




System One Control Software (S1.EXE) 2.1a (175.08 KB)

S1.EXE Control Software for System One. Please note that System One is a legacy product, and we no longer provide technical support or service.