Floating point exception (core dumped)

[orum farhang]

Hi All,

I'am using "online2-wav-nnet3-latgen-faster.cc" as an example to develop an audio file decoder which reads a wave file and decode it.

However my program crashes in  "decoder.AdvancedDecoding()"  line with this error: Floating point exception (core dumped)

When I debug it with gdb I can see that error is coming from this line: https://github.com/kaldi-asr/kaldi/blob/252690fd0a7fc28f0dff659493f5ef1825b63e65/src/nnet3/decodable-online-looped.cc#L70 

Could someone help me to understand what could be the reason for this please? I can extract ivector features from audio file but when I'm using same feature_pipeline for decoding I get this error.

Many thanks.

[Daniel Povey]

Looks to me like the --frame-subsampling-factor  option is set to zero.  Should be 1 or 3.  This may be a compilation issue, e.g.

the size of a struct changed but `make depend` had never been run.  Run `make depend` in src/, and then `make -j 8` or whatever.  If that fails, `make clean` and then make may help.

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