Problems in Extract features phase of MFCC

Hello,

I'm trying to extract the acoustic features from the MFCC and compute the cepstral mean variance normalization (MVN) statistics. For that I am using the following commands in Linux Ubuntu.

cd mycorpus
mfccdir=mfcc
x=data/train
steps/make_mfcc.sh --cmd "$train_cmd" --nj 16 $x exp/make_mfcc/$x $mfccdir
steps/compute_cmvn_stats.sh $x exp/make_mfcc/$x $mfccdir

The first log is something like this:

ERROR (extract-segments[5.5.1068~1-59299]:main():extract-segments.cc:167) Your data has multiple channels. You must specify the channel in the segments file. Skipping segment 110133_Lucas_01

[ Stack-Trace: ]
extract-segments(kaldi::MessageLogger::LogMessage() const+0x6de) [0x55a2bc31b0b8]
extract-segments(kaldi::MessageLogger::LogAndThrow::operator=(kaldi::MessageLogger const&)+0x25) [0x55a2bc29a59f]
extract-segments(main+0xe26) [0x55a2bc29990f]
/lib/x86_64-linux-gnu/libc.so.6(+0x29d90) [0x7f71be629d90]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80) [0x7f71be629e40]
extract-segments(_start+0x25) [0x55a2bc298a25]

kaldi::KaldiFatalErrorLOG (compute-mfcc-feats[5.5.1068~1-59299]:main():compute-mfcc-feats.cc:185)  Done 0 out of 0 utterances.
LOG (copy-feats[5.5.1068~1-59299]:main():copy-feats.cc:143) Copied 0 feature matrices.
# Accounting: time=0 threads=1
# Ended (code 1) at Sun Mar 26 15:58:05 -03 2023, elapsed time 0 seconds

The second:

WARNING (extract-segments[5.5.1068~1-59299]:Read():feat/wave-reader.h:197) Exception caught in WaveHolder::Read(). kaldi::KaldiFatalError
WARNING (extract-segments[5.5.1068~1-59299]:HasKeyInternal():util/kaldi-table-inl.h:1776) Error reading object from stream '/home/marina/Documentos/Faculdade/IC/gravações_19/lucas_rafael_costa_do_carmo/110136_lucas_audio_01.wav'
WARNING (extract-segments[5.5.1068~1-59299]:main():extract-segments.cc:125) Could not find recording 110136_lucas_audio_01, skipping segment 110136_lucas_01
ERROR (extract-segments[5.5.1068~1-59299]:Read():wave-reader.cc:122) WaveData: expected RIFF or RIFX, got

And this is repeated in the nine other logs. I have a "bigger" folder containing 27 "smaller" folders that have 7 audio recordings from different speakers. All in .wav format. This "larger" folder is not located inside the "kaldi" folder, however, in the wav.scp file, I locate the folder as follows:

110133_Lucas_audio_01 /home/me/Documentos/recordations/Lucas_Andrade_Brandão/110133_Lucas_audio_01.wav Can you tell me where is the error, please? I've been at this for days and I have no idea. I'm following the following tutorial:

https://www.eleanorchodroff.com/tutorial/kaldi/training-acoustic-models.html#create-files-for-datatrain

I'm on section 5.7.

Thank you very much in advance!

kaldi-asr / kaldi

Problems in Extract features phase of MFCC #4833