Audacity 4 documentation · Primary-source explanation; examples are illustrative. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Match the tool to the size of the fault
The current Audacity Repair page describes replacing a tiny damaged fragment using neighbouring samples. It sets a maximum selection of 128 samples and requires surrounding undamaged audio on both sides. A selection rejected as too long is therefore not fixed by repeatedly invoking the same command. A broad dropout, absent word or long distorted passage needs a different decision from a single brief click.
Convert the limit into a useful scale
For an original calculation, at 48,000 samples per second, 128 samples span about 0.00267 seconds. This explains why a region which looks small on a full programme view can still exceed the effect limit. Keep the original, zoom in until individual samples are visible and select the damaged portion narrowly. Leave the neighbouring context in place; isolating the fragment into an otherwise empty clip removes the material the interpolation needs.
Listen through the boundary afterwards
After applying Repair, listen from before the selected region through the following sound at normal playback scale. A visually smoother waveform alone does not establish that the edit is inaudible. If the result remains conspicuous, undo and reconsider the selection rather than repeatedly processing an already altered fragment. Compare against the untouched source and retain the better result. This is a bounded restoration technique which estimates missing detail from context, so describe the output as an edited reconstruction rather than a recovered original sample sequence.