kaldi是功能齐全性能高效的语音识别开源项目，锐英源软件对kaldi有丰富经验，今天把以前处理过程中的一个错误分享给大家，能帮大家节省时间。有个配置文件里参数错了，是和Mel无关的参数，改回原来值就可以了。
LOG (
online2-wav-nnet3-latgen-faster[5.5.839~8-0c6a]:ComputeDerivedVars():ivector-extractor.cc:183) Computing derived variables for iVector extractor
LOG (
online2-wav-nnet3-latgen-faster[5.5.839~8-0c6a]:ComputeDerivedVars():ivector-extractor.cc:204) Done.
LOG (
online2-wav-nnet3-latgen-faster[5.5.839~8-0c6a]:RemoveOrphanNodes():nnet-nnet.cc:948) Removed 1 orphan nodes.
LOG (
online2-wav-nnet3-latgen-faster[5.5.839~8-0c6a]:RemoveOrphanComponents():nnet-nnet.cc:847) Removing 2 orphan components.
LOG (
online2-wav-nnet3-latgen-faster[5.5.839~8-0c6a]:Collapse():nnet-utils.cc:1488) Added 1 components, removed 2
LOG (
online2-wav-nnet3-latgen-faster[5.5.839~8-0c6a]:CompileLooped():nnet-compile-looped.cc:345) Spent 0.0127561 seconds in looped compilation.
ASSERTION_FAILED (
online2-wav-nnet3-latgen-faster[5.5.839~8-0c6a]:MelBanks():mel-computations.cc:124) Assertion failed: (first_index != -1 && last_index >= first_index && “You may have set –num-mel-bins too large.”)
[ Stack-Trace: ]
/home/server/kaldi-trunk/src/lib/libkaldi-base.so(kaldi::MessageLogger::LogMessage() const+0xb42) [0x7f8a92744692]
/home/server/kaldi-trunk/src/lib/libkaldi-base.so(kaldi::KaldiAssertFailure_(char const*, char const*, int, char const*)+0x6e) [0x7f8a9274538e]
/home/server/kaldi-trunk/src/lib/libkaldi-feat.so(kaldi::MelBanks::MelBanks(kaldi::MelBanksOptions const&, kaldi::FrameExtractionOptions const&, float)+0x7bd) [0x7f8a92e44e09]
/home/server/kaldi-trunk/src/lib/libkaldi-feat.so(kaldi::MfccComputer::GetMelBanks(float)+0x8a) [0x7f8a92e40886]
/home/server/kaldi-trunk/src/lib/libkaldi-feat.so(kaldi::MfccComputer::MfccComputer(kaldi::MfccOptions const&)+0x3ea) [0x7f8a92e41036]
/home/server/kaldi-trunk/src/lib/libkaldi-feat.so(kaldi::OnlineGenericBaseFeature<kaldi::MfccComputer>::OnlineGenericBaseFeature(kaldi::MfccOptions const&)+0x28) [0x7f8a92e548c6]
/home/server/kaldi-trunk/src/lib/libkaldi-online2.so(kaldi::OnlineNnet2FeaturePipeline::OnlineNnet2FeaturePipeline(kaldi::OnlineNnet2FeaturePipelineInfo const&)+0xcc) [0x7f8a95e0803e]
./online2-wav-nnet3-latgen-faster(main+0x102f) [0x55e12e6fe4b8]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f8a9186abf7]
./online2-wav-nnet3-latgen-faster(_start+0x2a) [0x55e12e6fc99a]
./scptest.sh: 行 4: 14365 已放弃 (核心已转储)
./online2-wav-nnet3-latgen-faster
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