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Avoid NaN in feature normalization. (#2186)

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This commit is contained in:
Fangjun Kuang
2025-05-08 11:22:47 +08:00
committed by GitHub
parent f00066db88
commit f9c99032c3
1 changed files with 5 additions and 0 deletions
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5
sherpa-onnx/csrc/offline-stream.cc
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@@ -49,6 +49,11 @@ static void ComputeMeanAndInvStd(const float *p, int32_t num_rows,
(*mean)[i] = t; (*mean)[i] = t;
float stddev = std::sqrt(sum_sq[i] / num_rows - t * t); float stddev = std::sqrt(sum_sq[i] / num_rows - t * t);
if (stddev != stddev) {
stddev = 0;
}
(*inv_stddev)[i] = 1.0f / (stddev + 1e-5f); (*inv_stddev)[i] = 1.0f / (stddev + 1e-5f);
} }
} }