76 lines
2.9 KiB
Python
76 lines
2.9 KiB
Python
# ====================================================================
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# Copyright (c) 2013 Carnegie Mellon University. All rights
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# reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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#
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# This work was supported in part by funding from the Defense Advanced
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# Research Projects Agency and the National Science Foundation of the
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# United States of America, and the CMU Sphinx Speech Consortium.
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#
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# THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
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# ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
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# NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# ====================================================================
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import sys, os
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from pocketsphinx.pocketsphinx import *
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from sphinxbase.sphinxbase import *
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modeldir = "../../../model"
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datadir = "../../../test/data"
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# Create a decoder with certain model
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config = Decoder.default_config()
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config.set_string('-hmm', os.path.join(modeldir, 'en-us/en-us'))
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config.set_string('-dict', os.path.join(modeldir, 'en-us/cmudict-en-us.dict'))
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config.set_string('-keyphrase', 'forward')
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config.set_float('-kws_threshold', 1e+20)
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# Open file to read the data
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stream = open(os.path.join(datadir, "goforward.raw"), "rb")
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# Alternatively you can read from microphone
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# import pyaudio
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#
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# p = pyaudio.PyAudio()
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# stream = p.open(format=pyaudio.paInt16, channels=1, rate=16000, input=True, frames_per_buffer=1024)
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# stream.start_stream()
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# Process audio chunk by chunk. On keyword detected perform action and restart search
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decoder = Decoder(config)
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decoder.start_utt()
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while True:
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buf = stream.read(1024)
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if buf:
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decoder.process_raw(buf, False, False)
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else:
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break
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if decoder.hyp() != None:
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print ([(seg.word, seg.prob, seg.start_frame, seg.end_frame) for seg in decoder.seg()])
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print ("Detected keyword, restarting search")
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decoder.end_utt()
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decoder.start_utt()
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