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Update README.md
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README.md
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@@ -184,18 +184,18 @@ Data were recorded between 2021 and 2024 using Shure SM-35 unidirectional cardio
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#### Data Preprocessing
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At first an audio file
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The recorded speech
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With preset values of the minimum silence length set, the recording above the silence level
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- The minimum length of recorded speech must not be shorter than 3 sec and not longer than 30 seconds
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- In the case of a fragment shorter than 3 seconds, it is merged with the previously detected one
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In addition, 30-second fragments
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The beginning of the next 30-second chunk
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#### Data Preprocessing
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At first an audio file was normalized to a single channel, 16 kHz sample rate, and 2-byte sample width.
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The recorded speech was analyzed in a 30-second window. For such a preset time slice, the silence level was defined as 0.1 of the maximal loudness relative to the minimum loudness.
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With preset values of the minimum silence length set, the recording above the silence level was treated as speech. 2 conditions were taken into account:
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- The minimum length of recorded speech must not be shorter than 3 sec and not longer than 30 seconds
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- In the case of a fragment shorter than 3 seconds, it is merged with the previously detected one
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In addition, 30-second fragments were analyzed for the presence of silence considering the context of the entire recording.
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The beginning of the next 30-second chunk was defined as the moment when the previous chunk ended.
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