Audio tracks in Ardour have a mode which affects how they behave when recording:
| Normal | Tracks in normal mode will record non-destructively—new data is written to new files, and when overdubbing, new regions will be layered on top of existing ones. This is the recommended mode for most workflows. |
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| Non-Layered | Tracks using non-layered mode will record non-destructively—new data is written to new files, but when overdubbing, the existing regions are trimmed so that there are no overlaps. This does not affect the previously recorded audio data, and trimmed regions can be expanded again at will. Non-layered mode can be very useful for spoken word material, especially in combination with push/pull trimming. |
The screenshot on the right shows the subtle difference between an overdub in normal mode (upper track) and one in non-layered mode (lower track). Both tracks were created using identical audio data.
The upper track shows a new region which has been layered on top of the the existing (longer) region. It can be seen by the region name strips.
The lower track has split the existing region in two, trimmed each new region to create space for the new overdub, and inserted the overdub region in between.
The switch between normal and non-layered modes is a global setting available in the main toolbar.
