NemoAsrLoader: Close file handles after reading metadata #3003
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Signed-off-by: Joaquin Anton janton@nvidia.com
Why we need this PR?
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What happened in this PR?
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Changed NemoAsrLoader to close audio file handles after reading metadata, then open them again in the prefetching thread when decoding. This is to avoid having too many files open at the same time, causing a system error (large datasets).
NemoAsrReader
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JIRA TASK: [Use DALI-XXXX or NA]