Basic demo to make sure all gstreamer + pocketsphinx dependencies were installed correctly, and STT works w/ pocketphinx gst plugin for scarlett
http://askubuntu.com/questions/61289/how-to-verify-if-my-microphone-input-is-dead-or-ubuntu-not-detected-it-yet-i-ca http://www.linux.org/threads/beats-audio-on-linux.4443/
Currently assumes hmm folder is located at ./hmm FYI. Will need to figure out if this is still required in newer versions of pocketpshinx or not.
This demo uses autoenv (see: https://github.com/kennethreitz/autoenv ) to set environment variables to find pocketphinx static libs, eg:
using virtualenv: scarlett-dbus-poc scarlett-ansible in ~
○ → ls -lta /home/pi/.virtualenvs/scarlett-dbus-poc/lib/
total 6324
drwxrwxr-x 2 pi pi 4096 Dec 29 19:08 pkgconfig
drwxrwxr-x 2 pi pi 4096 Dec 29 19:08 gstreamer-1.0
drwxrwxr-x 5 pi pi 4096 Dec 29 19:08 .
-rw-r--r-- 1 pi pi 1941766 Dec 29 19:08 libpocketsphinx.a
-rwxr-xr-x 1 pi pi 1393 Dec 29 19:08 libpocketsphinx.la
lrwxrwxrwx 1 pi pi 24 Dec 29 19:08 libpocketsphinx.so -> libpocketsphinx.so.3.0.0
lrwxrwxrwx 1 pi pi 24 Dec 29 19:08 libpocketsphinx.so.3 -> libpocketsphinx.so.3.0.0
-rwxr-xr-x 1 pi pi 1147601 Dec 29 19:08 libpocketsphinx.so.3.0.0
-rw-r--r-- 1 pi pi 18938 Dec 29 18:59 libsphinxad.a
-rwxr-xr-x 1 pi pi 1096 Dec 29 18:59 libsphinxad.la
lrwxrwxrwx 1 pi pi 20 Dec 29 18:59 libsphinxad.so -> libsphinxad.so.3.0.0
lrwxrwxrwx 1 pi pi 20 Dec 29 18:59 libsphinxad.so.3 -> libsphinxad.so.3.0.0
-rwxr-xr-x 1 pi pi 21677 Dec 29 18:59 libsphinxad.so.3.0.0
-rw-r--r-- 1 pi pi 2074892 Dec 29 18:59 libsphinxbase.a
-rwxr-xr-x 1 pi pi 1049 Dec 29 18:59 libsphinxbase.la
lrwxrwxrwx 1 pi pi 22 Dec 29 18:59 libsphinxbase.so -> libsphinxbase.so.3.0.0
lrwxrwxrwx 1 pi pi 22 Dec 29 18:59 libsphinxbase.so.3 -> libsphinxbase.so.3.0.0
-rwxr-xr-x 1 pi pi 1222864 Dec 29 18:59 libsphinxbase.so.3.0.0
drwxrwxr-x 8 pi pi 4096 Dec 24 12:09 ..
drwxrwxr-x 4 pi pi 4096 Dec 23 16:25 python2.7
If you don't have autoenv installed, simply run source /path/to/scarlett-gstreamer-pocketsphinx-demo/.env
± |master ✓| → gst-inspect-1.0 pocketsphinx
Current configuration:
[NAME] [DEFLT] [VALUE]
-agc none none
-agcthresh 2.0 2.000000e+00
-allphone
-allphone_ci no no
-alpha 0.97 9.700000e-01
-ascale 20.0 2.000000e+01
-aw 1 1
-backtrace no no
-beam 1e-48 1.000000e-48
-bestpath yes yes
-bestpathlw 9.5 9.500000e+00
-ceplen 13 13
-cmn current current
-cmninit 8.0 40,3,-1
-compallsen no no
-debug 0
-dict /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/cmudict-en-us.dict
-dictcase no no
-dither no no
-doublebw no no
-ds 1 1
-fdict /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us/noisedict
-feat 1s_c_d_dd 1s_c_d_dd
-featparams /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us/feat.params
-fillprob 1e-8 1.000000e-08
-frate 100 100
-fsg
-fsgusealtpron yes yes
-fsgusefiller yes yes
-fwdflat yes yes
-fwdflatbeam 1e-64 1.000000e-64
-fwdflatefwid 4 4
-fwdflatlw 8.5 8.500000e+00
-fwdflatsfwin 25 25
-fwdflatwbeam 7e-29 7.000000e-29
-fwdtree yes yes
-hmm /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us
-input_endian little little
-jsgf
-keyphrase
-kws
-kws_delay 10 10
-kws_plp 1e-1 1.000000e-01
-kws_threshold 1 1.000000e+00
-latsize 5000 5000
-lda
-ldadim 0 0
-lifter 0 22
-lm /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us.lm.bin
-lmctl
-lmname
-logbase 1.0001 1.000100e+00
-logfn
-logspec no no
-lowerf 133.33334 1.300000e+02
-lpbeam 1e-40 1.000000e-40
-lponlybeam 7e-29 7.000000e-29
-lw 6.5 6.500000e+00
-maxhmmpf 30000 30000
-maxwpf -1 -1
-mdef /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us/mdef
-mean /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us/means
-mfclogdir
-min_endfr 0 0
-mixw
-mixwfloor 0.0000001 1.000000e-07
-mllr
-mmap yes yes
-ncep 13 13
-nfft 512 512
-nfilt 40 25
-nwpen 1.0 1.000000e+00
-pbeam 1e-48 1.000000e-48
-pip 1.0 1.000000e+00
-pl_beam 1e-10 1.000000e-10
-pl_pbeam 1e-10 1.000000e-10
-pl_pip 1.0 1.000000e+00
-pl_weight 3.0 3.000000e+00
-pl_window 5 5
-rawlogdir
-remove_dc no no
-remove_noise yes yes
-remove_silence yes yes
-round_filters yes yes
-samprate 16000 1.600000e+04
-seed -1 -1
-sendump /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us/sendump
-senlogdir
-senmgau
-silprob 0.005 5.000000e-03
-smoothspec no no
-svspec 0-12/13-25/26-38
-tmat /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us/transition_matrices
-tmatfloor 0.0001 1.000000e-04
-topn 4 4
-topn_beam 0 0
-toprule
-transform legacy dct
-unit_area yes yes
-upperf 6855.4976 6.800000e+03
-uw 1.0 1.000000e+00
-vad_postspeech 50 50
-vad_prespeech 20 20
-vad_startspeech 10 10
-vad_threshold 2.0 2.000000e+00
-var /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us/variances
-varfloor 0.0001 1.000000e-04
-varnorm no no
-verbose no no
-warp_params
-warp_type inverse_linear inverse_linear
-wbeam 7e-29 7.000000e-29
-wip 0.65 6.500000e-01
-wlen 0.025625 2.562500e-02
Factory Details:
Rank none (0)
Long-name PocketSphinx
Klass Filter/Audio
Description Convert speech to text
Author CMUSphinx-devel <cmusphinx-devel@lists.sourceforge.net>
Plugin Details:
Name pocketsphinx
Description PocketSphinx plugin
Filename /home/pi/.virtualenvs/scarlett-dbus-poc/lib/gstreamer-1.0/libgstpocketsphinx.so
Version 5prealpha
License BSD
Source module pocketsphinx
Binary package PocketSphinx
Origin URL http://cmusphinx.sourceforge.net/
GObject
+----GInitiallyUnowned
+----GstObject
+----GstElement
+----GstPocketSphinx
Pad Templates:
SINK template: 'sink'
Availability: Always
Capabilities:
audio/x-raw
format: { S16LE }
channels: 1
rate: 16000
SRC template: 'src'
Availability: Always
Capabilities:
text/plain
Element Flags:
no flags set
Element Implementation:
Has change_state() function: gst_element_change_state_func
Element has no clocking capabilities.
Element has no indexing capabilities.
Element has no URI handling capabilities.
Pads:
SINK: 'sink'
Implementation:
Has chainfunc(): 0x7f8017bad1c0
Has custom eventfunc(): 0x7f8017bad160
Has custom queryfunc(): gst_pad_query_default
Has custom iterintlinkfunc(): gst_pad_iterate_internal_links_default
Pad Template: 'sink'
SRC: 'src'
Implementation:
Has custom eventfunc(): gst_pad_event_default
Has custom queryfunc(): gst_pad_query_default
Has custom iterintlinkfunc(): gst_pad_iterate_internal_links_default
Pad Template: 'src'
Element Properties:
name : The name of the object
flags: readable, writable
String. Default: "pocketsphinx0"
parent : The parent of the object
flags: readable, writable
Object of type "GstObject"
hmm : Directory containing acoustic model parameters
flags: readable, writable
String. Default: "/home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us"
lm : Language model file
flags: readable, writable
String. Default: "/home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us.lm.bin"
lmctl : Language model control file (for class LMs)
flags: readable, writable
String. Default: null
lmname : Language model name (to select LMs from lmctl)
flags: readable, writable
String. Default: null
dict : Dictionary File
flags: readable, writable
String. Default: "/home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/cmudict-en-us.dict"
fsg : Finite state grammar file
flags: readable, writable
String. Default: null
fsg-model : Finite state grammar object (fsg_model_t *)
flags: writable
Pointer. Write only
fwdflat : Enable Flat Lexicon Search
flags: readable, writable
Boolean. Default: true
bestpath : Enable Graph Search
flags: readable, writable
Boolean. Default: true
maxhmmpf : Maximum number of HMMs searched per frame
flags: readable, writable
Integer. Range: 1 - 100000 Default: 30000
maxwpf : Maximum number of words searched per frame
flags: readable, writable
Integer. Range: 1 - 100000 Default: -1
beam : Beam width applied to every frame in Viterbi search
flags: readable, writable
Double. Range: -1 - 1 Default: 1e-48
wbeam : Beam width applied to phone transitions
flags: readable, writable
Double. Range: -1 - 1 Default: 7e-29
pbeam : Beam width applied to phone transitions
flags: readable, writable
Double. Range: -1 - 1 Default: 1e-48
dsratio : Evaluate acoustic model every N frames
flags: readable, writable
Integer. Range: 1 - 10 Default: 1
latdir : Output Directory for Lattices
flags: readable, writable
String. Default: null
decoder : The underlying decoder
flags: readable
Boxed pointer of type "PSDecoder"
configured : Set this to finalize configuration
flags: readable, writable
Boolean. Default: true
pocketsphinx_continuous -hmm /home/pi/.virtualenvs/scarlett-dbus-poc/share/pocketsphinx/model/en-us/en-us -lm 1602.lm -dict 1602.dic -samprate 16000/8000/48000 -inmic yes