This configuration class is responsible for storing the configuration options for OnlineFeaturePipeline, but it does not set them. More...

#include <online-feature-pipeline.h>

Collaboration diagram for OnlineFeaturePipelineConfig:

[legend]

Public Member Functions
	OnlineFeaturePipelineConfig ()

	OnlineFeaturePipelineConfig (const OnlineFeaturePipelineCommandLineConfig &cmdline_config)

BaseFloat	FrameShiftInSeconds () const

Public Attributes
std::string	feature_type

MfccOptions	mfcc_opts

PlpOptions	plp_opts

FbankOptions	fbank_opts

bool	add_pitch

PitchExtractionOptions	pitch_opts

ProcessPitchOptions	pitch_process_opts

OnlineCmvnOptions	cmvn_opts

bool	add_deltas

DeltaFeaturesOptions	delta_opts

bool	splice_feats

OnlineSpliceOptions	splice_opts

std::string	lda_rxfilename

std::string	global_cmvn_stats_rxfilename

Detailed Description

This configuration class is responsible for storing the configuration options for OnlineFeaturePipeline, but it does not set them.

To do that you should use OnlineFeaturePipelineCommandLineConfig, which can read in the configuration from config files on disk. The reason for structuring it this way with two config files, is to make it easier to configure from code as well as from the command line.

Definition at line 112 of file online-feature-pipeline.h.

Constructor & Destructor Documentation

◆ OnlineFeaturePipelineConfig() [1/2]

OnlineFeaturePipelineConfig ( )

inline

Definition at line 113 of file online-feature-pipeline.h.

                                :
       feature_type("mfcc"), add_pitch(false), add_deltas(true),
       splice_feats(false) { }

◆ OnlineFeaturePipelineConfig() [2/2]

OnlineFeaturePipelineConfig ( const OnlineFeaturePipelineCommandLineConfig & cmdline_config )

Definition at line 26 of file online-feature-pipeline.cc.

                                                           {
   if (config.feature_type == "mfcc" || config.feature_type == "plp" ||
       config.feature_type == "fbank") {
     feature_type = config.feature_type;
   } else {
     KALDI_ERR << "Invalid feature type: " << config.feature_type << ". "
               << "Supported feature types: mfcc, plp, fbank.";
   }
 
   if (config.mfcc_config != "") {
     ReadConfigFromFile(config.mfcc_config, &mfcc_opts);
     if (feature_type != "mfcc")
       KALDI_WARN << "--mfcc-config option has no effect "
                  << "since feature type is set to " << feature_type << ".";
   }  // else use the defaults.
 
   if (config.plp_config != "") {
     ReadConfigFromFile(config.plp_config, &plp_opts);
     if (feature_type != "plp")
       KALDI_WARN << "--plp-config option has no effect "
                  << "since feature type is set to " << feature_type << ".";
   }  // else use the defaults.
 
   if (config.fbank_config != "") {
     ReadConfigFromFile(config.fbank_config, &fbank_opts);
     if (feature_type != "fbank")
       KALDI_WARN << "--fbank-config option has no effect "
                  << "since feature type is set to " << feature_type << ".";
   }  // else use the defaults.
 
   add_pitch = config.add_pitch;
   if (config.pitch_config != "") {
     ReadConfigFromFile(config.pitch_config, &pitch_opts);
     if (!add_pitch)
       KALDI_WARN << "--pitch-config option has no effect "
                  << "since you did not supply --add-pitch option.";
   }  // else use the defaults.
 
   if (config.pitch_process_config != "") {
     ReadConfigFromFile(config.pitch_process_config, &pitch_process_opts);
     if (!add_pitch)
       KALDI_WARN << "--pitch-process-config option has no effect "
                  << "since you did not supply --add-pitch option.";
   }  // else use the defaults.
 
   if (config.cmvn_config != "") {
     ReadConfigFromFile(config.cmvn_config, &cmvn_opts);
   }  // else use the defaults.
 
   global_cmvn_stats_rxfilename = config.global_cmvn_stats_rxfilename;
   if (global_cmvn_stats_rxfilename == "")
     KALDI_ERR << "--global-cmvn-stats option is required.";
 
   add_deltas = config.add_deltas;
   if (config.delta_config != "") {
     ReadConfigFromFile(config.delta_config, &delta_opts);
     if (!add_deltas)
       KALDI_WARN << "--delta-config option has no effect "
                  << "since you did not supply --add-deltas option.";
   }  // else use the defaults.
 
   splice_feats = config.splice_feats;
   if (config.splice_config != "") {
     ReadConfigFromFile(config.splice_config, &splice_opts);
     if (!splice_feats)
       KALDI_WARN << "--splice-config option has no effect "
                  << "since you did not supply --splice-feats option.";
   }  // else use the defaults.
 
   if (config.add_deltas && config.splice_feats)
     KALDI_ERR << "You cannot supply both --add-deltas "
               << "and --splice-feats options";
 
   lda_rxfilename = config.lda_rxfilename;
 }

Member Function Documentation

◆ FrameShiftInSeconds()

BaseFloat FrameShiftInSeconds ( ) const

Definition at line 286 of file online-feature-pipeline.cc.

References KALDI_ERR.

                                                                  {
   if (feature_type == "mfcc") {
     return mfcc_opts.frame_opts.frame_shift_ms / 1000.0f;
   } else if (feature_type == "plp") {
     return plp_opts.frame_opts.frame_shift_ms / 1000.0f;
   } else if (feature_type == "fbank") {
     return fbank_opts.frame_opts.frame_shift_ms / 1000.0f;
   } else {
     KALDI_ERR << "Unknown feature type " << feature_type;
     return 0.0;
   }
 }