POCKETSPHINX_CONTINUOUS(1)

💖 POCKETSPHINX_CONTINUOUS 💖

okay bestie, gather round, because this is pocketsphinx_continuous, a General Commands Manual page from way back, and it's literally the vibe of "listen to me talk and I'll write it down." no cap.

✨ NAME ✨

pocketsphinx_continuous — run speech recognition in continuous listening mode 🎧👑

🦋 SYNOPSIS 🦋

pocketsphinx_continuous [-infile filename.wav ] [ -inmic yes ] [ options ]...

🌸 DESCRIPTION 🌸

so here's the tea: this program opens an audio device or a file and just… waits. patiently. for speech. the moment it detects an utterance, it does speech recognition on it. that's it, that's the whole personality. 🫶

to record from the microphone and decode, you use

-inmic yes

to decode a 16kHz 16-bit mono WAV file, you use

-infile filename.wav

and you can also specify -lm or -fsg or -kws, depending on whether you're using a statistical language model, a finite-state grammar, or you're out here looking for a keyphrase. pick your fighter. 💅

💅 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 <dhuggins@cs.cmu.edu> 💌

🌈 COPYRIGHT 🌈

Copyright © 1994-2016 Carnegie Mellon University. See the file LICENSE included with this package for more information.

🎀 SEE ALSO 🎀

pocketsphinx_batch(1), sphinx_fe(1).

okay that's the whole thing, bestie, no crumbs left 🍓 — this was the POCKETSPHINX_CONTINUOUS(1) page from the General Commands Manual, dated 2016-04-01, and it absolutely ate. go forth and transcribe. 💜✨🦋