ad_open_dev failed when running pocketsphinx

[Tang Lung Cheung]

I got the following error message when running pocketsphinx-0.6 with
sphinxbase-0.6 on MAC OS 10.6.3

INFO: s2_semi_mgau.c(921): BEGIN FILE FORMAT DESCRIPTION
INFO: s2_semi_mgau.c(1016): Using memory-mapped I/O for senones
INFO: s2_semi_mgau.c(1293): Maximum top-N: 4 Top-N beams: 0 0 0
INFO: dict.c(294): Allocating 4122 * 32 bytes (128 KiB) for word entries
INFO: dict.c(306): Reading main dictionary: 6543.dic
INFO: dict.c(206): Allocated 0 KiB for strings, 0 KiB for phones
INFO: dict.c(309): 15 words read
INFO: dict.c(314): Reading filler dictionary:
/usr/local/share/pocketsphinx/model/hmm/en_US/hub4wsj_sc_8k/noisedict
INFO: dict.c(206): Allocated 0 KiB for strings, 0 KiB for phones
INFO: dict.c(317): 11 words read
INFO: dict2pid.c(402): Building PID tables for dictionary
INFO: dict2pid.c(409): Allocating 26 * 8 bytes (0 KiB) for word-internal
arrays
INFO: dict2pid.c(414): Allocating 50^3 * 2 bytes (244 KiB) for word-initial
triphones
INFO: dict2pid.c(453): Allocating 35 entries of 2 bytes (0 KiB) for internal
ssids
INFO: dict2pid.c(130): Allocated 60400 bytes (58 KiB) for word-final triphones
INFO: dict2pid.c(193): Allocated 60400 bytes (58 KiB) for single-phone word
triphones
INFO: ngram_model_arpa.c(476): ngrams 1=16, 2=28, 3=14
INFO: ngram_model_arpa.c(135): Reading unigrams
INFO: ngram_model_arpa.c(515): 16 = #unigrams created
INFO: ngram_model_arpa.c(194): Reading bigrams
INFO: ngram_model_arpa.c(531): 28 = #bigrams created
INFO: ngram_model_arpa.c(532): 3 = #prob2 entries
INFO: ngram_model_arpa.c(539): 3 = #bo_wt2 entries
INFO: ngram_model_arpa.c(291): Reading trigrams
INFO: ngram_model_arpa.c(552): 14 = #trigrams created
INFO: ngram_model_arpa.c(553): 2 = #prob3 entries
INFO: ngram_search_fwdtree.c(99): 13 unique initial diphones
INFO: ngram_search_fwdtree.c(147): 0 root, 0 non-root channels, 12 single-
phone words
INFO: ngram_search_fwdtree.c(186): Creating search tree
INFO: ngram_search_fwdtree.c(191): before: 0 root, 0 non-root channels, 12
single-phone words
INFO: ngram_search_fwdtree.c(324): after: max nonroot chan increased to 163
INFO: ngram_search_fwdtree.c(333): after: 13 root, 35 non-root channels, 11
single-phone words
INFO: ngram_search_fwdflat.c(153): fwdflat: min_ef_width = 4, max_sf_win = 25
A/D library not implemented
FATAL_ERROR: "continuous.c", line 259: ad_open_dev failed

[Nickolay V. Shmyrev]

Hello ctldenon

Native audio input from microphone for Mac OS is missing now unfortunately,
you can only try to decode
from prerecorded wav file.

The solution we propose right now is to take a look at VoiceKit, a project to
support pocketsphinx on Mac OS:

http://github.com/KingOfBrian/VocalKit