[This is pre-release documentation and subject to change in future releases. This topic's current status is: Milestone-Ready]

Topic Last Modified: 2010-07-18

You can use Windows Media Audio (.wma) file format or Wave (.wav) file format for unassigned number Announcements or for Response Group messages, on-hold music, or Interactive Voice Response (IVR) questions.

The Windows Media Audio file format requires that the Windows Media Format Runtime is installed. For details, see Hardware and Software Requirements for Call Management.

Supported WAV File Formats

All Wave files must meet the following requirements:

  • 8-bit or 16-bit file

  • Linear pulse code modulation (LPCM), A-Law, or mu-Law format

  • Mono or stereo

  • 4MB or less

For the best performance of Wave files, a 16 kHz, mono, 16-bit Wave file is recommended.

The following table describes the supported Wave file formats.

Standard PCM Formats

SAFT8kHz8BitMono

SAFT8kHz8BitStereo

SAFT8kHz16BitMono

SAFT8kHz16BitStereo

SAFT11kHz8BitMono

SAFT11kHz8BitStereo

SAFT11kHz16BitMono

SAFT11kHz16BitStereo

SAFT12kHz8BitMono

SAFT12kHz8BitStereo

SAFT12kHz16BitMono

SAFT12kHz16BitStereo

SAFT16kHz8BitMono

SAFT16kHz8BitStereo

SAFT16kHz16BitMono

SAFT16kHz16BitStereo

SAFT22kHz8BitMono

SAFT22kHz8BitStereo

SAFT22kHz16BitMono

SAFT22kHz16BitStereo

SAFT24kHz8BitMono

SAFT24kHz8BitStereo

SAFT24kHz16BitMono

SAFT24kHz16BitStereo

SAFT32kHz8BitMono

SAFT32kHz8BitStereo

SAFT32kHz16BitMono

SAFT32kHz16BitStereo

SAFT44kHz8BitMono

SAFT44kHz8BitStereo

SAFT44kHz16BitMono

SAFT44kHz16BitStereo

SAFT48kHz8BitMono

SAFT48kHz8BitStereo

SAFT48kHz16BitMono

SAFT48kHz16BitStereo

A-Law Formats

SAFTCCITT_ALaw8kHzMono

SAFTCCITT_ALaw8kHzStereo

SAFTCCITT_ALaw11kHzMono

SAFTCCITT_ALaw11kHzStereo

SAFTCCITT_ALaw22kHzMono

SAFTCCITT_ALaw22kHzStereo

SAFTCCITT_ALaw44kHzMono

SAFTCCITT_ALaw44kHzStereo

u-Law Formats

SAFTCCITT_uLaw_8kHzMono

SAFTCCITT_uLaw_8kHzStereo

SAFTCCITT_uLaw_11kHzMono

SAFTCCITT_uLaw_11kHzStereo

SAFTCCITT_uLaw_22kHzMono

SAFTCCITT_uLaw_22kHzStereo

SAFTCCITT_uLaw_44kHzMono

SAFTCCITT_uLaw_44kHzStereo

The following list contains the exact sampling frequencies required for 11kHz, 22kHz, and 44kHz files (that is, an 11000Hz file is not supported by the system):

  • 11kHZ=11025Hz

  • 22kHz=22050Hz

  • 44kHz=44100Hz

Supported Windows Media Audio File Formats

You can use the Windows Media Encoder 9 Series tool available from http://go.microsoft.com/fwlink/?linkid=144677 to convert a file to the Windows Media Audio format. The recommended format is Windows Media Audio 9, 44 kHz, 16 bits, Mono, CBR, 32 kbps.