--- name: "pocketsphinx_continuous" 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_continuous" --- # pocketsphinx\_continuous(1) Run speech recognition in continuous listening mode ## NAME pocketsphinx\_continuous - Run speech recognition in continuous listening mode ## SYNOPSIS **pocketsphinx\_continuous** \[***-infile*** *filename.wav* \] \[ **-inmic yes** \] \[ *options* \]... ## DESCRIPTION This program opens the audio device or a file and waits for speech. When it detects an utterance, it performs speech recognition on it. To record from microphone and decode use - **-inmic yes** To decode a 16kHz 16-bit mono WAV file use - **-infile *filename.wav*** You can also specify **-lm** or **-fsg** or **-kws** depending on whether you are using a statistical language model or a finite-state grammar or look for a keyphase. ## OPTIONS - **-adcdev** of audio device to use for input. - **-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 - **-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) - **-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 - **-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. - **-infile** file to transcribe. - **-inmic** Transcribe audio from microphone. - **-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 - **-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 - **-mmap** Use memory-mapped I/O (if possible) for model files - **-ncep** Number of cep coefficients - **-nfft** Size of FFT - **-nfilt** Number of filter banks - **-nwpen** New word transition penalty - **-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 - **-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) - **-time** Print word times in file transcription. - **-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 ## 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\_batch**(1)](/pocketsphinx_batch/1.md), [**sphinx\_fe**(1)](/sphinx_fe/1.md).\