Local Filtering

The filter can be operated locally, i.e. in the selected area only. In such a case

1. If the output file does not exist yet or is not opened, a new soundfile, identical with the input file, is created prior to processing.

2. The filtering algorithm is run in the selected area and the corresponding block of samples in the output file is modified.

If the output file already exists and is opened, only the second part of the above procedure is realized.

NOTICE

When the results of local filtering are pasted over into the output file, some discontinuities may appear at the boundaries of the selected block. Most of the time this problem can be avoided provided that the filter is operated in the linear phase mode; if not - try using DART XP Pro tools to force a smooth transition.