Using Speech Search
- Verba Support
Integrated Speech Search
Speech Search is integrated into the regular Verba search interface:
- Speech Search Filters on the left Search tab allow you to specifiy phrase based searches
- Search Results show a Confidence column, to show how reliable the results are
- When you click play on a result, the player shows search phrases directly on the waveform diagram
Understanding Extended Search
In order to provide a highly responsive search experience, the search is separated into two steps:
| Summary | Description |
| Step 1 Initial Results Initial results are fast, but might not be complete | These are shown every time you press the Search button (with speech phrases included). To achieve faster response times this will only show results from the database:
|
| Step 2 Extended Search Extended search can take longer, but are complete (within the reasonable limitations of speech search - see below) | When the Initial Results are not sufficient, you can ask the system to do discovers further calls that:
Since this step might take longer, a counter at the top of the results will show you progress. |
After performing a Search, the Initial Results are shown in the list to the right and an Extended Search button appears above the list.
Extended Search takes longer to complete, since it potentially requires processing thousands of speech index files. Therefore, Extended Search is performed as a background task with a progress indicator above the search results. If you leave the search interface and come back (even logout and login later), you will see the updated progress in the Search interface.
Limitations of speech search
For all speech search results the system calculates a Confidence value. High (>90%) confidence values mean, that the hits are most likely correct.
Always consider this value to determine the success of your search. If you notice a false hit there is an option in the Verba player to remove that result from future searches.