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Configuring Non-Linguistic Event Elements

Non-linguistic Events include various sounds that SpeechMiner detects in a call, such as busy tones, key presses, and music or noise. Depending on the Program settings of the call, non-verbal indications of agitation may also be detected. In addition, the non-linguistic Event called Cross Talk is identified when two speakers are talking at the same time. This type of Event can only be identified in systems in which dual-channel recording is employed.

In some cases, an element can include more than one type of related Event. For example, you can select Silence, Busy Tone, and Dial Tone together, but you cannot select Agitation along with other types of Events. When you select multiple types of non-linguistic Events, if any of those Events is found in the call, it meets the condition.

When you add a non-linguistic Event element to an expression (see Inserting Elements into an Expression), the fields required to select and configure the element are added to the right panel below the Type field. You can use these fields to select the type of non-linguistic Event and specify what proportion of the call must contain this type of Event and when it must be detected in the call.

To configure a non-linguistic Event element:

1. Under Non Linguistics, select the type of non-linguistic Event. Other types of non-linguistic Events, types that cannot be selected along with the selected type, become inactive. If it is possible to select additional types, they remain active.

   If you selected DTMF, a dropdown menu appears. If you selected Silence, Busy Tone, Music/Noise, Dial Tone, Ring Back Tone, or Cross Talk, the Amount area opens below the Position area.

2. If additional types of Events are active, select any of the other active types, as required.
3. If you selected DTMF, in the dropdown menu beside the option, select any to accept any key press, or select a key from the list.

4. If you selected Silence, Busy Tone, Music/Noise, Dial Tone, Ring Back Tone, or Cross Talk, in the Amount area, define the amount of time that the selected types of non-linguistic Events must occupy in the total time of the call, as follows:

   Field | Description
   From | Define the minimum amount of time that the selected types of non-linguistic Events must occupy in the total time of the call in one of the following ways: Seconds: The minimum number of seconds in the call in which the types of Events must be found Percentage: The minimum proportion of the call in which the types of Events must be found, expressed as a percentage. (Insert the % character after the value to indicate it is a percentage.)
   To | Define the maximum amount of time that the selected types of non-linguistic Events must occupy in the total time of the call, as explained above.
   Accumulated Amount / Continuous | Select one of the following: Accumulated Amount: The values in the From and To fields refer to the total amount of time in the call audio in which the selected types of Events were found, even if the total consists of more than one distinct Event. Continuous: The values in the From and To fields refer to individual Events in the call audio. That is, an Event only meets the condition if it lasted at least as long as the value in the From field and not longer than the value in the To field.

5. Modify the following settings as necessary:

Setting | Description
Not found | Select this option if you want the condition to include all calls except those in which the selected types of non-linguistic Events were found. (For additional information, see Configuring Category Conditions.)
From | Define the earliest position in the call audio at which the non-linguistic Event may be found, in seconds, and then select one of the following types of reference points: Secs Abs: The number of seconds is defined relative to the beginning of the call Secs Abs from End: The number of seconds is defined relative to the end of the call (i.e., the Event must be found no earlier in the call than this number of seconds from the end of the call) Secs Rel to Start of Prev: The number of seconds is defined relative to the beginning of the previous item in the expression; this option will only work if the operator connecting the two elements is Conditional AND (->). Otherwise, selecting this is the same as selecting Secs Abs. Secs Rel to End of Prev: The number of seconds is defined relative to the end of the parent item; this option will only work if the operator connecting the two elements is Conditional AND (->). Otherwise, selecting this is the same as selecting Secs Abs from End.
To | Define the latest position in the call audio at which the non-linguistic Event may be found, in seconds, and then select one of the types of reference points explained above.

See also

Configuring Metadata Elements
Configuring Program Elements
Configuring Topic Elements
Configuring Category Elements
Configuring Speaker-Type Elements
Configuring Text Elements