3.4Development Software Documentation

This section contains updates to the following documents:

•Audio Conferencing API for Linux and Windows Operating Systems Library Reference

•Audio Conferencing API for Linux Operating Systems Programming Guide

•Continuous Speech Processing API for Linux and Windows Operating Systems Library Reference

•Global Call IP for Host Media Processing Technology Guide

•Voice API for Host Media Processing Library Reference

•Voice API for Host Media Processing Programming Guide

3.4.1Audio Conferencing API for Linux and Windows Operating Systems Library Reference

Update to dcb_getbrdparm( ) and dcb_setbrdparm( ) functions (IPY00006584 = PTR 36199)

Changed the description of the MSG_ACTID parameter to indicate that it enables/disables active talker identification (or notification) and not the active talker feature itself. Replace the MSG_ACTID parameter with the following:

Enables or disables Active Talker Identification (or Notification). Possible values are ACTID_ON or ACTID_OFF. ACTID_ON is the default. This parameter does not enable or disable the active talker feature, which is always enabled. It only disables the notification to the application program. The active talker feature sums the 3 most active talkers in a conference, so that the conversation doesn’t get drowned out when too many people talk at once. Active talker notification provides data on active talkers through the dcb_gettalkers( ) and dcb_GetAtiBitsEx( ) functions, which can be used by an application program to identify active talkers; for example, to provide a visual display highlighting the active talkers in a conference. Active talkers are determined by their loudness; i.e., the strength of their “non- silence” energy.

Note: In some cases, it is desirable to inactivate the active talker feature, such as for a background music application program. Although you cannot directly disable the active talker feature, you can set the noise level threshhold by which signals are recognized as either speech or noise.

3.4.2Audio Conferencing API for Linux Operating Systems Programming Guide

Update to Section 6.2, “Initialization of DM3 Board Parameters” and to “Active Talker” chapter (IPY00006584 = PTR 36199)

Changed the description of the MSG_ACTID parameter to indicate that it enables/disables active talker identification (or notification) and not the active talker feature itself. Replace the MSG_ACTID parameter with the following:

MSG_ACTID (Active Talker Identification)

Enables or disables Active Talker Identification (or Notification). Possible values are ACTID_ON or ACTID_OFF. ACTID_ON is the default. This parameter does not enable or

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Intel 05-2352-005 manual Development Software Documentation
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05-2352-005 specifications

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