--- name: "pocketsphinx_batch" section: "1" platform: "linux" package: "pocketsphinx" version: "0.8+5prealpha+1-15+b4" release: "Debian 13 (Trixie)" platforms: ["linux"] url: "https://new.carta.tech/pocketsphinx_batch" --- # pocketsphinx\_batch(1) Run speech recognition in batch mode ## NAME pocketsphinx\_batch - Run speech recognition in batch mode ## SYNOPSIS **pocketsphinx\_batch** **-ctl** *ctlfile* **-cepdir** *cepdir* **-cepext** *.mfc* \[ *options* \]... ## DESCRIPTION Run speech recognition over a list of utterances in batchmode. A list of arguments follows: - **-adchdr** Size of audio file header in bytes (headers are ignored) - **-adcin** Input is raw audio data - **-agc** Automatic gain control for c0 ('max', 'emax', 'noise', or 'none') - **-agcthresh** Initial threshold for automatic gain control - **-allphone** phoneme decoding with phonetic lm - **-allphone\_ci** Perform phoneme decoding with phonetic lm and context-independent units only - **-alpha** Preemphasis parameter - **-argfile** file giving extra arguments. - **-ascale** Inverse of acoustic model scale for confidence score calculation - **-aw** Inverse weight applied to acoustic scores. - **-backtrace** Print results and backtraces to log file. - **-beam** Beam width applied to every frame in Viterbi search (smaller values mean wider beam) - **-bestpath** Run bestpath (Dijkstra) search over word lattice (3rd pass) - **-bestpathlw** Language model probability weight for bestpath search - **-build\_outdirs** Create missing subdirectories in output directory - **-cepdir** files directory (prefixed to filespecs in control file) - **-cepext** Input files extension (suffixed to filespecs in control file) - **-ceplen** Number of components in the input feature vector - **-cmn** Cepstral mean normalization scheme ('current', 'prior', or 'none') - **-cmninit** Initial values (comma-separated) for cepstral mean when 'prior' is used - **-compallsen** Compute all senone scores in every frame (can be faster when there are many senones) - **-ctl** file listing utterances to be processed - **-ctlcount** No. of utterances to be processed (after skipping **-ctloffset** entries) - **-ctlincr** Do every Nth line in the control file - **-ctloffset** No. of utterances at the beginning of **-ctl** file to be skipped - **-ctm** output in CTM file format (may require post-sorting) - **-debug** level for debugging messages - **-dict** pronunciation dictionary (lexicon) input file - **-dictcase** Dictionary is case sensitive (NOTE: case insensitivity applies to ASCII characters only) - **-dither** Add 1/2-bit noise - **-doublebw** Use double bandwidth filters (same center freq) - **-ds** Frame GMM computation downsampling ratio - **-fdict** word pronunciation dictionary input file - **-feat** Feature stream type, depends on the acoustic model - **-featparams** containing feature extraction parameters. - **-fillprob** Filler word transition probability - **-frate** Frame rate - **-fsg** format finite state grammar file - **-fsgctl** file listing FSG file to use for each utterance - **-fsgdir** directory for FSG files - **-fsgext** extension for FSG files (including leading dot) - **-fsgusealtpron** Add alternate pronunciations to FSG - **-fsgusefiller** Insert filler words at each state. - **-fwdflat** Run forward flat-lexicon search over word lattice (2nd pass) - **-fwdflatbeam** Beam width applied to every frame in second-pass flat search - **-fwdflatefwid** Minimum number of end frames for a word to be searched in fwdflat search - **-fwdflatlw** Language model probability weight for flat lexicon (2nd pass) decoding - **-fwdflatsfwin** Window of frames in lattice to search for successor words in fwdflat search - **-fwdflatwbeam** Beam width applied to word exits in second-pass flat search - **-fwdtree** Run forward lexicon-tree search (1st pass) - **-hmm** containing acoustic model files. - **-hyp** output file name - **-hypseg** output with segmentation file name - **-input\_endian** Endianness of input data, big or little, ignored if NIST or MS Wav - **-jsgf** grammar file - **-keyphrase** to spot - **-kws** file with keyphrases to spot, one per line - **-kws\_delay** Delay to wait for best detection score - **-kws\_plp** Phone loop probability for keyword spotting - **-kws\_threshold** Threshold for p(hyp)/p(alternatives) ratio - **-latsize** Initial backpointer table size - **-lda** containing transformation matrix to be applied to features (single-stream features only) - **-ldadim** Dimensionality of output of feature transformation (0 to use entire matrix) - **-lifter** Length of sin-curve for liftering, or 0 for no liftering. - **-lm** trigram language model input file - **-lmctl** a set of language model - **-lmname** language model in **-lmctl** to use by default - **-lmnamectl** file listing LM name to use for each utterance - **-logbase** Base in which all log-likelihoods calculated - **-logfn** to write log messages in - **-logspec** Write out logspectral files instead of cepstra - **-lowerf** Lower edge of filters - **-lpbeam** Beam width applied to last phone in words - **-lponlybeam** Beam width applied to last phone in single-phone words - **-lw** Language model probability weight - **-maxhmmpf** Maximum number of active HMMs to maintain at each frame (or **-1** for no pruning) - **-maxwpf** Maximum number of distinct word exits at each frame (or **-1** for no pruning) - **-mdef** definition input file - **-mean** gaussian means input file - **-mfclogdir** to log feature files to - **-min\_endfr** Nodes ignored in lattice construction if they persist for fewer than N frames - **-mixw** mixture weights input file (uncompressed) - **-mixwfloor** Senone mixture weights floor (applied to data from **-mixw** file) - **-mllr** transformation to apply to means and variances - **-mllrctl** file listing MLLR transforms to use for each utterance - **-mllrdir** directory for MLLR transforms - **-mllrext** extension for MLLR transforms (including leading dot) - **-mmap** Use memory-mapped I/O (if possible) for model files - **-nbest** Number of N-best hypotheses to write to **-nbestdir** (0 for no N-best) - **-nbestdir** for writing N-best hypothesis lists - **-nbestext** Extension for N-best hypothesis list files - **-ncep** Number of cep coefficients - **-nfft** Size of FFT - **-nfilt** Number of filter banks - **-nwpen** New word transition penalty - **-outlatbeam** Minimum posterior probability for output lattice nodes - **-outlatdir** for dumping word lattices - **-outlatext** Filename extension for dumping word lattices - **-outlatfmt** Format for dumping word lattices (s3 or htk) - **-pbeam** Beam width applied to phone transitions - **-pip** Phone insertion penalty - **-pl\_beam** Beam width applied to phone loop search for lookahead - **-pl\_pbeam** Beam width applied to phone loop transitions for lookahead - **-pl\_pip** Phone insertion penalty for phone loop - **-pl\_weight** Weight for phoneme lookahead penalties - **-pl\_window** Phoneme lookahead window size, in frames - **-rawlogdir** to log raw audio files to - **-remove\_dc** Remove DC offset from each frame - **-remove\_noise** Remove noise with spectral subtraction in mel-energies - **-remove\_silence** Enables VAD, removes silence frames from processing - **-round\_filters** Round mel filter frequencies to DFT points - **-samprate** Sampling rate - **-seed** Seed for random number generator; if less than zero, pick our own - **-sendump** dump (compressed mixture weights) input file - **-senin** Input is senone score dump files - **-senlogdir** to log senone score files to - **-senmgau** to codebook mapping input file (usually not needed) - **-silprob** Silence word transition probability - **-smoothspec** Write out cepstral-smoothed logspectral files - **-svspec** specification (e.g., 24,0-11/25,12-23/26-38 or 0-12/13-25/26-38) - **-tmat** state transition matrix input file - **-tmatfloor** HMM state transition probability floor (applied to **-tmat** file) - **-topn** Maximum number of top Gaussians to use in scoring. - **-topn\_beam** Beam width used to determine top-N Gaussians (or a list, per-feature) - **-toprule** rule for JSGF (first public rule is default) - **-transform** Which type of transform to use to calculate cepstra (legacy, dct, or htk) - **-unit\_area** Normalize mel filters to unit area - **-upperf** Upper edge of filters - **-uw** Unigram weight - **-vad\_postspeech** Num of silence frames to keep after from speech to silence. - **-vad\_prespeech** Num of speech frames to keep before silence to speech. - **-vad\_startspeech** Num of speech frames to trigger vad from silence to speech. - **-vad\_threshold** Threshold for decision between noise and silence frames. Log-ratio between signal level and noise level. - **-var** gaussian variances input file - **-varfloor** Mixture gaussian variance floor (applied to data from **-var** file) - **-varnorm** Variance normalize each utterance (only if CMN == current) - **-verbose** Show input filenames - **-warp\_params** defining the warping function - **-warp\_type** Warping function type (or shape) - **-wbeam** Beam width applied to word exits - **-wip** Word insertion penalty - **-wlen** Hamming window length To do batchmode recognition, you will need to specify a control file, using **-ctl** This is a simple text file containing one entry per line. Each entry is the name of an input file relative to the **-cepdir** directory, and without the filename extension (which is given in the **-cepext** argument). If you are using acoustic feature files as input (see [**sphinx\_fe**(1)](/sphinx_fe/1.md) for information on how to generate these), you can also specify a subpart of a file, using the following format: **FILENAME START-FRAME END-FRAME UTTERANCE-ID** ## AUTHOR Written by numerous people at CMU from 1994 onwards. This manual page by David Huggins-Daines \ ## COPYRIGHT Copyright © 1994-2016 Carnegie Mellon University. See the file *LICENSE* included with this package for more information.\ ## SEE ALSO [**pocketsphinx\_continuous**(1)](/pocketsphinx_continuous/1.md), [**sphinx\_fe**(1)](/sphinx_fe/1.md).\