How to build a transcriber with open souce

1)  Benchmark performance
Ref: http://cmusphinx.sourceforge.net/sphinx4/

Test	S3.3 WER	S4 WER	S3.3 RT	S4 RT(1)	S4 RT (2)	Vocabulary Size	Language Model
TI46	1.217	0.168	0.14	.03	.02	11	isolated digits recognition
TIDIGITS	0.661	0.549	0.16	0.07	0.05	11	continuous digits
AN4	1.300	1.192	0.38	0.25	0.20	79	trigram
RM1	2.746	2.88	0.50	0.50	0.41	1,000	trigram
WSJ5K	7.323	6.97	1.36	1.22	0.96	5,000	trigram
HUB4	18.845	18.756	3.06	~4.4	3.95	60,000	trigram

2) Code installation

https://github.com/ox-it/spindle-code/tree/master/speechToText



3) Official Demo

http://cmusphinx.sourceforge.net/sphinx4/src/apps/edu/cmu/sphinx/demo/transcriber/README.html

4) Keyword spotting

https://github.com/sgrau/spindle-code/tree/master/keywords