It can occur that you want to modify the start and/or end times of all annotations of one or more tiers with the same amount of milliseconds. If e.g. the start of annotations is such that playing the interval of an annotation often misses the very first part of the audio of the utterance, it is best to move the start time of each annotation a bit to the left. Such annotations could e.g. have been created by a recognizer which made the boundaries of segments a bit too "tight".

This function can be started via Tier>Modify Boundaries of All Annotations... and involves two steps.

  1. File and Tier Selection

    If an annotation document is open, the single file option Use currently opened file is active. In the multiple file situation (see Modify boundaries of all annotationsSelect files from browser and Select files from domain are active. When tiers are loaded in the table, select one or more tiers to process and click Next.

  2. Specification of start and/or end time modification

    There are two main options in this step:

    Figure 2.117. Modify boundaries of all annotations of selected tiers

    Modify boundaries of all annotations of selected tiers

    Click Finish to apply the modifications.