OSX - #include "portaudio.h" 1 error generated. error: command '/usr/bin/clang' failed with exit status 1

Question

I am busy with making a speech recognition code and I have this:

from pocketsphinx.pocketsphinx import *
from sphinxbase.sphinxbase import *

import os
import pyaudio
import wave
import audioop
from collections import deque
import time
import math

 class SpeechDetector:
     def __init__(self):
        self.CHUNK = 1024
        self.FORMAT = pyaudio.paInt16
        self.CHANNELS = 1
        self.RATE = 16000

        self.SILENCE_LIMIT = 1
        self.PREV_AUDIO = 0.5

        self.THRESHOLD = 4500
        self.num_phrases = -1

        MODELDIR = "../../tools/pocketsphinx/model"
        DATADIR = "../../tools/pocketsphinx/test/data"

        config = Decoder.default_config()
        config.set_string('-hmm', os.path.join(MODELDIR, 'en-us/en-us'))
        config.set_string('-lm', os.path.join(MODELDIR, 'en-us/en-us.lm.bin'))
        config.set_string('-dict', os.path.join(MODELDIR, 'en-us/cmudict-en-us.dict'))

        self.decoder = Decoder(config)

    def setup_mic(self, num_samples=50):
        print "Getting intensity values from mic."
        p = pyaudio.PyAudio()
        stream = p.open(format=self.FORMAT,
                        channels=self.CHANNELS,
                        rate=self.RATE,
                        input=True,
                        frames_per_buffer=self.CHUNK)

        values = [math.sqrt(abs(audioop.avg(stream.read(self.CHUNK), 4)))
            for x in range(num_samples)]
            values = sorted(values, reverse=True)
        r = sum(values[:int(num_samples * 0.2)]) / int(num_samples * 0.2)
        print " Finished "
        print " Average audio intensity is ", r
        stream.close()
        p.terminate()

        if r < 3000:
            self.THRESHOLD = 3500
        else:
            self.THRESHOLD = r + 100

    def save_speech(self, data, p):

        filename = 'output_'+str(int(time.time()))
        data = ''.join(data)
        wf = wave.open(filename + '.wav', 'wb')
        wf.setnchannels(1)
        wf.setsampwidth(p.get_sample_size(pyaudio.paInt16))
        wf.setframerate(16000)
        wf.writeframes(data)
        wf.close()
        return filename + '.wav'

def decode_phrase(self, wav_file):
    self.decoder.start_utt()
    stream = open(wav_file, "rb")
    while True:
        buf = stream.read(1024)
        if buf:
            self.decoder.process_raw(buf, False, False)
            self.decoder.end_utt()

            words = []
            [words.append(seg.word) for seg in self.decoder.seg()]
            return words

def run(self):
    self.setup_mic()

p = pyaudio.PyAudio()
stream = p.open(format=self.FORMAT,
                channels=self.CHANNELS,
                rate=self.RATE,
                input=True,
                frames_per_buffer=self.CHUNK)
print "* Mic set up and listening. "

audio2send = []
cur_data = ''
rel = self.RATE/self.CHUNK
slid_win = deque(maxlen=self.SILENCE_LIMIT * rel)
prev_audio = deque(maxlen=self.PREV_AUDIO * rel)
started = False

while True:
    cur_data = stream.read(self.CHUNK)
    slid_win.append(math.sqrt(abs(audioop.avg(cur_data, 4))))

    if sum([x > self.THRESHOLD for x in slid_win]) > 0:
        if started == False:
            print "Starting recording of phrase"
            started = True
            audio2send.append(cur_data)
       elif started:
           print "Finished recording, decoding phrase"
           filename = self.save_speech(list(prev_audio) + audio2send, p)
            r = self.decode_phrase(filename)
            print "DETECTED: ", r
            os.remove(filename)

stream.close()
p.terminate()

if __name__ == "__main__":
    sd = SpeechDetector()
    sd.run()

but every time I run it it says: ImportError: No module named pyaudio.

Then I go to terminal and I do pip install pyaudio but then it shows this:

#include "portaudio.h"

         ^
1 error generated.
error: command '/usr/bin/clang' failed with exit status 1

I'm using a Macbook with MacOS Sierra version 10.12.5 from 2011. I looked at every stack overflow page but nothing worked with me. Please help me!

Answer 1

You need portaudio installed before installing pyaudio. Install portaudio with homebrew

From pyaudio website

Apple Mac OS X Use Homebrew to install the prerequisite portaudio library, then install PyAudio using pip:

brew install portaudio 
pip install pyaudio

Notes:

If not already installed, download Homebrew. pip will download the PyAudio source and build it for your version of Python. Homebrew and building PyAudio also require installing the Command Line Tools for Xcode (more information).