CMU Sphinx / Forums / Help: Error on JACK: buffer is full. Deactivating JACK client.

I am trying pocketsphinx_continuous on Ubuntu 14.04. But there seems to be some errors on JACK. The program always give me the following two error messages.
JACK error: Cannot connect to server socket err = Connection refused
JACK error: Cannot connect to server request channel
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK: buffer is full. Deactivating JACK client.
The recognition results are very strange and clearly wrong. I also git clone the newest pocketsphinx from github, and install pocketsphinx as the website suggests. The program runs for a while and stuck at "INFO: continuous.c(275): Ready....", so I have to termincate the program by "ctrl+c". And sometimes, a process with the ID "jackd" still keeps running when I terminate the program.
How can I fix the problem? Below is the log message.
$ pocketsphinx_continuous -inmic yes
INFO: pocketsphinx.c(152): Parsed model-specific feature parameters from /usr/local/share/pocketsphinx/model/en-us/en-us/feat.params
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                   /usr/local/share/pocketsphinx/model/en-us/cmudict-en-us.dict
-dictcase       no      no
-dither         no      no
-doublebw       no      no
-ds         1       1
-fdict                  
-feat           1s_c_d_dd   1s_c_d_dd
-featparams             
-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                    /usr/local/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                 /usr/local/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                   
-mean                   
-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                
-senlogdir              
-senmgau                
-silprob        0.005       5.000000e-03
-smoothspec     no      no
-svspec                 0-12/13-25/26-38
-tmat                   
-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                    
-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

INFO: feat.c(715): Initializing feature stream to type: '1s_c_d_dd', ceplen=13, CMN='current', VARNORM='no', AGC='none'
INFO: cmn.c(143): mean[0]= 12.00, mean[1..12]= 0.0
INFO: acmod.c(164): Using subvector specification 0-12/13-25/26-38
INFO: mdef.c(518): Reading model definition: /usr/local/share/pocketsphinx/model/en-us/en-us/mdef
INFO: mdef.c(531): Found byte-order mark BMDF, assuming this is a binary mdef file
INFO: bin_mdef.c(336): Reading binary model definition: /usr/local/share/pocketsphinx/model/en-us/en-us/mdef
INFO: bin_mdef.c(516): 42 CI-phone, 137053 CD-phone, 3 emitstate/phone, 126 CI-sen, 5126 Sen, 29324 Sen-Seq
INFO: tmat.c(206): Reading HMM transition probability matrices: /usr/local/share/pocketsphinx/model/en-us/en-us/transition_matrices
INFO: acmod.c(117): Attempting to use PTM computation module
INFO: ms_gauden.c(198): Reading mixture gaussian parameter: /usr/local/share/pocketsphinx/model/en-us/en-us/means
INFO: ms_gauden.c(292): 42 codebook, 3 feature, size: 
INFO: ms_gauden.c(294):  128x13
INFO: ms_gauden.c(294):  128x13
INFO: ms_gauden.c(294):  128x13
INFO: ms_gauden.c(198): Reading mixture gaussian parameter: /usr/local/share/pocketsphinx/model/en-us/en-us/variances
INFO: ms_gauden.c(292): 42 codebook, 3 feature, size: 
INFO: ms_gauden.c(294):  128x13
INFO: ms_gauden.c(294):  128x13
INFO: ms_gauden.c(294):  128x13
INFO: ms_gauden.c(354): 222 variance values floored
INFO: ptm_mgau.c(476): Loading senones from dump file /usr/local/share/pocketsphinx/model/en-us/en-us/sendump
INFO: ptm_mgau.c(500): BEGIN FILE FORMAT DESCRIPTION
INFO: ptm_mgau.c(563): Rows: 128, Columns: 5126
INFO: ptm_mgau.c(595): Using memory-mapped I/O for senones
INFO: ptm_mgau.c(835): Maximum top-N: 4
INFO: phone_loop_search.c(114): State beam -225 Phone exit beam -225 Insertion penalty 0
INFO: dict.c(320): Allocating 138623 * 32 bytes (4331 KiB) for word entries
INFO: dict.c(333): Reading main dictionary: /usr/local/share/pocketsphinx/model/en-us/cmudict-en-us.dict
INFO: dict.c(213): Allocated 1014 KiB for strings, 1677 KiB for phones
INFO: dict.c(336): 134522 words read
INFO: dict.c(358): Reading filler dictionary: /usr/local/share/pocketsphinx/model/en-us/en-us/noisedict
INFO: dict.c(213): Allocated 0 KiB for strings, 0 KiB for phones
INFO: dict.c(361): 5 words read
INFO: dict2pid.c(396): Building PID tables for dictionary
INFO: dict2pid.c(406): Allocating 42^3 * 2 bytes (144 KiB) for word-initial triphones
INFO: dict2pid.c(132): Allocated 42672 bytes (41 KiB) for word-final triphones
INFO: dict2pid.c(196): Allocated 42672 bytes (41 KiB) for single-phone word triphones
INFO: ngram_model_trie.c(456): Trying to read LM in trie binary format
INFO: ngram_search_fwdtree.c(99): 790 unique initial diphones
INFO: ngram_search_fwdtree.c(148): 0 root, 0 non-root channels, 57 single-phone words
INFO: ngram_search_fwdtree.c(186): Creating search tree
INFO: ngram_search_fwdtree.c(192): before: 0 root, 0 non-root channels, 57 single-phone words
INFO: ngram_search_fwdtree.c(326): after: max nonroot chan increased to 152144
INFO: ngram_search_fwdtree.c(339): after: 722 root, 152016 non-root channels, 53 single-phone words
INFO: ngram_search_fwdflat.c(157): fwdflat: min_ef_width = 4, max_sf_win = 25
INFO: continuous.c(307): pocketsphinx_continuous COMPILED ON: Mar 19 2016, AT: 22:03:29

JACK: Setting default device: system:capture_1
JACK error: Cannot connect to server socket err = No such file or directory
JACK error: Cannot connect to server request channel
jackdmp 1.9.10
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2013 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 2 periods for playback
JACK: The sample rate is now 48000/sec
INFO: continuous.c(252): Ready....
INFO: continuous.c(261): Listening...
INFO: ngram_search.c(459): Resized backpointer table to 10000 entries
INFO: ngram_search.c(467): Resized score stack to 200000 entries
INFO: cmn_prior.c(131): cmn_prior_update: from < 40.00  3.00 -1.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00 >
INFO: cmn_prior.c(149): cmn_prior_update: to   < 12.32 21.75  6.54 -10.86 -10.44 -0.27  7.53 10.62  8.64  3.58  6.43 10.34  1.63 >
INFO: ngram_search_fwdtree.c(1553):     7241 words recognized (19/fr)
INFO: ngram_search_fwdtree.c(1555):  1453019 senones evaluated (3824/fr)
INFO: ngram_search_fwdtree.c(1559):  6870050 channels searched (18079/fr), 269257 1st, 298179 last
INFO: ngram_search_fwdtree.c(1562):    19147 words for which last channels evaluated (50/fr)
INFO: ngram_search_fwdtree.c(1564):   421741 candidate words for entering last phone (1109/fr)
INFO: ngram_search_fwdtree.c(1567): fwdtree 4.40 CPU 1.157 xRT
INFO: ngram_search_fwdtree.c(1570): fwdtree 13.44 wall 3.536 xRT
INFO: ngram_search_fwdflat.c(302): Utterance vocabulary contains 162 words
INFO: ngram_search_fwdflat.c(948):     4141 words recognized (11/fr)
INFO: ngram_search_fwdflat.c(950):   315719 senones evaluated (831/fr)
INFO: ngram_search_fwdflat.c(952):   440456 channels searched (1159/fr)
INFO: ngram_search_fwdflat.c(954):    23061 words searched (60/fr)
INFO: ngram_search_fwdflat.c(957):    14982 word transitions (39/fr)
INFO: ngram_search_fwdflat.c(960): fwdflat 0.25 CPU 0.065 xRT
INFO: ngram_search_fwdflat.c(963): fwdflat 0.36 wall 0.094 xRT
INFO: ngram_search.c(1253): lattice start node <s>.0 end node </s>.304
INFO: ngram_search.c(1279): Eliminated 1 nodes before end node
INFO: ngram_search.c(1384): Lattice has 985 nodes, 4734 links
INFO: ps_lattice.c(1380): Bestpath score: -13443
INFO: ps_lattice.c(1384): Normalizer P(O) = alpha(</s>:304:378) = -674118
INFO: ps_lattice.c(1441): Joint P(O,S) = -740158 P(S|O) = -66040
INFO: ngram_search.c(875): bestpath 0.02 CPU 0.004 xRT
INFO: ngram_search.c(878): bestpath 0.02 wall 0.005 xRT
bob
INFO: continuous.c(275): Ready....
INFO: continuous.c(261): Listening...
INFO: ngram_search_fwdtree.c(952): cand_sf[] increased to 64 entries
JACK: buffer is full. Deactivating JACK client.
INFO: ngram_search.c(467): Resized score stack to 400000 entries
INFO: ngram_search.c(459): Resized backpointer table to 20000 entries
INFO: ngram_search.c(467): Resized score stack to 800000 entries
INFO: ngram_search.c(459): Resized backpointer table to 40000 entries
INFO: cmn_prior.c(131): cmn_prior_update: from < 12.32 21.75  6.54 -10.86 -10.44 -0.27  7.53 10.62  8.64  3.58  6.43 10.34  1.63 >
INFO: cmn_prior.c(149): cmn_prior_update: to   < 13.56 20.91  3.96 -8.07 -9.49  1.56  9.33  6.64  3.70  3.99  7.46  9.74 -0.86 >
INFO: ngram_search_fwdtree.c(1553):    25779 words recognized (54/fr)
INFO: ngram_search_fwdtree.c(1555):  1670117 senones evaluated (3487/fr)
INFO: ngram_search_fwdtree.c(1559):  9000553 channels searched (18790/fr), 296267 1st, 721346 last
INFO: ngram_search_fwdtree.c(1562):    40969 words for which last channels evaluated (85/fr)
INFO: ngram_search_fwdtree.c(1564):   655992 candidate words for entering last phone (1369/fr)
INFO: ngram_search_fwdtree.c(1567): fwdtree 5.68 CPU 1.187 xRT
INFO: ngram_search_fwdtree.c(1570): fwdtree 19.42 wall 4.055 xRT
INFO: ngram_search_fwdflat.c(302): Utterance vocabulary contains 733 words
INFO: ngram_search_fwdflat.c(948):    20546 words recognized (43/fr)
INFO: ngram_search_fwdflat.c(950):   777083 senones evaluated (1622/fr)
INFO: ngram_search_fwdflat.c(952):  1893390 channels searched (3952/fr)
INFO: ngram_search_fwdflat.c(954):   100289 words searched (209/fr)
INFO: ngram_search_fwdflat.c(957):    54518 word transitions (113/fr)
INFO: ngram_search_fwdflat.c(960): fwdflat 1.11 CPU 0.232 xRT
INFO: ngram_search_fwdflat.c(963): fwdflat 1.43 wall 0.298 xRT
INFO: ngram_search.c(1253): lattice start node <s>.0 end node </s>.444
INFO: ngram_search.c(1279): Eliminated 0 nodes before end node
INFO: ngram_search.c(1384): Lattice has 1984 nodes, 41333 links
INFO: ps_lattice.c(1380): Bestpath score: -20713
INFO: ps_lattice.c(1384): Normalizer P(O) = alpha(</s>:444:477) = -1196827
INFO: ps_lattice.c(1441): Joint P(O,S) = -1399270 P(S|O) = -202443
INFO: ngram_search.c(875): bestpath 0.46 CPU 0.095 xRT
INFO: ngram_search.c(878): bestpath 0.59 wall 0.124 xRT
it half go to goofed up to two top
INFO: continuous.c(275): Ready....
^C
Error on JACK: buffer is full. Deactivating JACK client.

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Error on JACK: buffer is full. Deactivating JACK client.
