Pad CutSet with silence?
See original GitHub issueI’m wondering whether there is an easy way to pad all the cuts in a CutSet with a fixed amount of silence on the sides, as in extend()? This is for things like debugging edge issues with models, or decoding and making sure final symbols are output.
I tried extend_by(), but it appears to be a no-op, e.g.
a.extend_by(0.05, preserve_id=True).fill_supervisions()
seemed to return the original CutSet (possibly because it only extended to the edge of the original recordings?)
I ended up doing this with something like:
load_manifest(self.args.manifest_dir / "cuts_test-clean.json.gz").pad(direction='both').fill_supervisions()
just for testing purposes, which isn’t ideal because it make all utterances as long as the longest one, which is not what I really wanted.
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- Created a year ago
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I guess we could add a boolean argument
pad_silence
to theextend_by()
function which specifies whether to pad the cut with silence if not enough context is present.Closing via https://github.com/lhotse-speech/lhotse/pull/816.