安装 pocketsphinx 后，当我尝试运行 pocketsphinx_continuous 程序时，我得到了这个错误..
_oss.c(103): 无法打开音频设备(/dev/dsp): 没有这样的文件或目录 FATAL_ERROR: "continuous.c", line 242: Failed top open audio device
如何解决这个问题呢？
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7721 次
3 回答
6
从终端安装以下内容：
sudo apt-get update;sudo apt-get dist-upgrade;
sudo apt-get install pavucontrol linux-sound-base alsa-base alsa-utils lightdm ubuntu-desktop linux-image-`uname -r` libasound2;
sudo apt-get -y --reinstall install linux-sound-base alsa-base alsa-utils lightdm ubuntu-desktop linux-image-`uname -r` libasound2;
killall pulseaudio;
rm -r ~/.pulse*;
ubuntu-support-status;
sudo usermod -aG `cat /etc/group | grep -e '^pulse:' -e '^audio:' -e '^pulse-access:' -e '^pulse-rt:' -e '^video:' | awk -F: '{print $1}' | tr '\n' ',' | sed 's:,$::g'` `whoami`
sudo apt-get install pulseaudio
sudo apt-get install libpulse-dev
sudo apt-get install osspd
可能需要一段时间，但它对我来说非常有效。
于 2015-01-28T10:33:42.333 回答
4
您在安装 pocketsphinx 时遇到问题
为了方便访问pocketsphinx，只需从存储库安装pocketsphinx，此外，最近pocketsphinx 已登陆Ubuntu 存储库。
如果您从源代码编译pocketsphinx，如果您了解Linux 中音频子系统的复杂性，那么pocketsphinx 的安装过程就不是问题。不幸的是，音频子系统很复杂，但是一旦你得到它，事情就会变得更容易。从历史上看，音频子系统非常分散。它包括以下主要框架：
旧的类 Unix DSP 框架——一切都由内核空间驱动程序处理。应用程序与 /dev/dsp 设备交互以产生和记录音频 ALSA——较新的音频子系统，部分在内核中，但也有用户空间库 libasound。ALSA 还通过 snd_pcm_oss 驱动程序提供 DSP 兼容性层，该驱动程序创建 /dev/dsp 设备并模拟音频 Pulseaudio——甚至是在 libasound ALSA 库之上工作的更新系统，但提供了一个声音服务器来集中所有处理。为了与库通信，它还提供了 libpulse 库，应用程序必须使用它来录制声音 Jack——另一个声音服务器，也工作在 ALSA 之上，提供另一个库 libjack。与 Pulseaudio 类似，还有其他不太流行的框架，但 sphinxbase 不支持它们。例如 ESD（旧的 GNOME 声音服务器），ARTS（旧的 KDE 声音服务器）、Portaudio（可跨 Windows、Linux 和 Mac 使用的便携式库）。Ubuntu 上推荐的音频框架是 pulseaudio。
Sphinxbase 和 pocketsphinx 支持所有框架，并在编译时自动选择您需要的框架。最高优先级是在pulseaudio 框架中。在安装 sphinxbase 之前，您需要决定使用哪个框架。之后需要设置相应框架的开发部分。
例如，建议安装 libpulse-dev 软件包以提供对 pulseaudio 的访问，之后 sphinxbase 将自动与 Pulseaudio 一起使用。一旦你使用了pulseaudio，你就不需要其他框架了。在嵌入式设备上尝试配置 alsa。
对于未来，您可以通过阅读Pocketsphinx 常见问题解答来快速获得有关此问题和其他问题的答案
于 2013-06-17T04:22:35.243 回答
2
以下内容对我非常有用：
sudo apt-get update;sudo apt-get dist-upgrade; sudo apt-get install pavucontrol linux-sound-base alsa-base alsa-utils
sudo apt-get install libsound2
sudo apt-get install pulseaudio
sudo apt-get install libpulse-dev
sudo apt-get install osspd
结果如下：
momen@momenlaptop:~$ 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 live batch
-cmninit 40,3,-1 41.00,-5.29,-0.12,5.09,2.48,-4.07,-1.37,-1.78,-5.08,-2.05,-6.45,-1.42,1.17
-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='batch', VARNORM='no', AGC='none'
INFO: acmod.c(162): 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(149): Reading HMM transition probability matrices: /usr/local/share/pocketsphinx/model/en-us/en-us/transition_matrices
INFO: acmod.c(113): Attempting to use PTM computation module
INFO: ms_gauden.c(127): Reading mixture gaussian parameter: /usr/local/share/pocketsphinx/model/en-us/en-us/means
INFO: ms_gauden.c(242): 42 codebook, 3 feature, size:
INFO: ms_gauden.c(244): 128x13
INFO: ms_gauden.c(244): 128x13
INFO: ms_gauden.c(244): 128x13
INFO: ms_gauden.c(127): Reading mixture gaussian parameter: /usr/local/share/pocketsphinx/model/en-us/en-us/variances
INFO: ms_gauden.c(242): 42 codebook, 3 feature, size:
INFO: ms_gauden.c(244): 128x13
INFO: ms_gauden.c(244): 128x13
INFO: ms_gauden.c(244): 128x13
INFO: ms_gauden.c(304): 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(838): 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 138824 * 32 bytes (4338 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): Dictionary size 134723, allocated 1016 KiB for strings, 1679 KiB for phones
INFO: dict.c(336): 134723 words read
INFO: dict.c(358): Reading filler dictionary: /usr/local/share/pocketsphinx/model/en-us/en-us/noisedict
INFO: dict.c(213): Dictionary size 134728, 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(354): Trying to read LM in trie binary format
INFO: ngram_search_fwdtree.c(74): Initializing search tree
INFO: ngram_search_fwdtree.c(101): 791 unique initial diphones
INFO: ngram_search_fwdtree.c(186): Creating search channels
INFO: ngram_search_fwdtree.c(323): Max nonroot chan increased to 152609
INFO: ngram_search_fwdtree.c(333): Created 723 root, 152481 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: Sep 10 2017, AT: 22:55:34
INFO: continuous.c(252): Ready....
INFO: continuous.c(261): Listening...
INFO: ngram_search_fwdtree.c(949): cand_sf[] increased to 64 entries
INFO: ngram_search.c(459): Resized backpointer table to 10000 entries
INFO: ngram_search.c(467): Resized score stack to 200000 entries
INFO: ngram_search.c(459): Resized backpointer table to 20000 entries
INFO: ngram_search.c(467): Resized score stack to 400000 entries
INFO: ngram_search.c(459): Resized backpointer table to 40000 entries
INFO: ngram_search.c(467): Resized score stack to 800000 entries
INFO: cmn_live.c(88): Update from < 41.00 -5.29 -0.12 5.09 2.48 -4.07 -1.37 -1.78 -5.08 -2.05 -6.45 -1.42 1.17 >
INFO: cmn_live.c(105): Update to < 69.63 8.29 -5.53 -0.71 6.93 0.21 -8.90 -0.03 2.80 -1.20 3.76 5.92 -5.86 >
于 2017-09-10T19:38:02.020 回答