Add initial project files including Vosk model and audio recognition script

vosk-model-small-es-0.42/README

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+Copyright 2022-2050 AC Technologies LLC
+
+Small Spanish model for Vosk
+
+WER
+
+%WER 42.63 [ 52779 / 123813, 4570 ins, 22135 del, 26074 sub ] exp/chain/tdnn/decode_test_call/wer_10_0.0
+%WER 16.02 [ 24405 / 152364, 3121 ins, 5007 del, 16277 sub ] exp/chain/tdnn/decode_test_cv/wer_11_0.0
+%WER 11.21 [ 9922 / 88499, 1811 ins, 1675 del, 6436 sub ] exp/chain/tdnn/decode_test_mls/wer_10_0.0
+%WER 16.72 [ 2410 / 14416, 445 ins, 696 del, 1269 sub ] exp/chain/tdnn/decode_test_mtedx/wer_10_0.0

vosk-model-small-es-0.42/conf/mfcc.conf

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+--sample-frequency=16000.0
+--use-energy=false
+--num-mel-bins=40
+--num-ceps=40
+--low-freq=20
+--high-freq=7600
+--allow-upsample=true
+--allow-downsample=true

vosk-model-small-es-0.42/conf/model.conf

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+--min-active=200
+--max-active=4000
+--beam=11.0
+--lattice-beam=4.0
+--acoustic-scale=1.0
+--frame-subsampling-factor=3
+--endpoint.silence-phones=1:2:3:4:5:6:7:8:9:10
+--endpoint.rule2.min-trailing-silence=0.5
+--endpoint.rule3.min-trailing-silence=1.0
+--endpoint.rule4.min-trailing-silence=2.0

vosk-model-small-es-0.42/graph/disambig_tid.int

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+7601
+7602
+7603
+7604
+7605
+7606
+7607
+7608
+7609
+7610

vosk-model-small-es-0.42/graph/phones/word_boundary.int

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+1 nonword
+2 begin
+3 end
+4 internal
+5 singleton
+6 nonword
+7 begin
+8 end
+9 internal
+10 singleton
+11 begin
+12 end
+13 internal
+14 singleton
+15 begin
+16 end
+17 internal
+18 singleton
+19 begin
+20 end
+21 internal
+22 singleton
+23 begin
+24 end
+25 internal
+26 singleton
+27 begin
+28 end
+29 internal
+30 singleton
+31 begin
+32 end
+33 internal
+34 singleton
+35 begin
+36 end
+37 internal
+38 singleton
+39 begin
+40 end
+41 internal
+42 singleton
+43 begin
+44 end
+45 internal
+46 singleton
+47 begin
+48 end
+49 internal
+50 singleton
+51 begin
+52 end
+53 internal
+54 singleton
+55 begin
+56 end
+57 internal
+58 singleton
+59 begin
+60 end
+61 internal
+62 singleton
+63 begin
+64 end
+65 internal
+66 singleton
+67 begin
+68 end
+69 internal
+70 singleton
+71 begin
+72 end
+73 internal
+74 singleton
+75 begin
+76 end
+77 internal
+78 singleton
+79 begin
+80 end
+81 internal
+82 singleton
+83 begin
+84 end
+85 internal
+86 singleton
+87 begin
+88 end
+89 internal
+90 singleton
+91 begin
+92 end
+93 internal
+94 singleton
+95 begin
+96 end
+97 internal
+98 singleton
+99 begin
+100 end
+101 internal
+102 singleton
+103 begin
+104 end
+105 internal
+106 singleton
+107 begin
+108 end
+109 internal
+110 singleton

vosk-model-small-es-0.42/ivector/global_cmvn.stats

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+ [
+  8.46276e+10 7.072285e+08 -1.289904e+10 5.671974e+09 -1.209136e+10 -2.034736e+10 -6.875634e+09 -1.557388e+10 -2.806233e+09 -3.674485e+09 -6.921794e+09 6.946679e+08 -8.52497e+09 -7.260168e+08 -4.343575e+09 -5.486674e+09 -1.710502e+09 -1.996049e+09 -2.165263e+09 -6.832425e+07 -9.641756e+08 5.967002e+07 -1.110601e+08 4.368464e+07 -1.341292e+07 5.138013e+08 1.807307e+08 -1.273191e+08 9.086873e+08 -7.03787e+08 6.228164e+08 2.102328e+08 4.091046e+07 1.103751e+09 1.753195e+07 6.810451e+08 3.860742e+08 -6.252538e+08 2.375626e+08 -4.708622e+08 8.625583e+08 
+  8.661931e+12 5.440279e+11 7.661625e+11 5.86159e+11 5.687293e+11 1.020851e+12 6.045613e+11 8.250028e+11 4.274593e+11 3.851017e+11 4.398129e+11 4.172123e+11 3.736421e+11 2.438057e+11 2.363456e+11 2.023758e+11 1.314776e+11 8.931146e+10 5.928187e+10 3.395453e+10 1.88439e+10 6.181701e+09 7.988108e+08 2.281808e+08 3.149188e+09 8.009975e+09 1.215929e+10 1.646801e+10 2.218979e+10 2.492957e+10 2.43543e+10 2.243619e+10 2.445217e+10 2.796862e+10 2.215869e+10 1.68782e+10 1.565755e+10 1.461083e+10 1.140419e+10 7.335776e+09 0 ]

vosk-model-small-es-0.42/ivector/online_cmvn.conf

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+# configuration file for apply-cmvn-online, used in the script ../local/run_online_decoding.sh

vosk-model-small-es-0.42/ivector/splice.conf

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+--left-context=3
+--right-context=3