title: Python Librosa with Microphone input
body: <p>So I am trying to get librosa to work with a microphone input instead of just a wav file and have been running to a few problems. Initially I use the pyaudio library to connect to the microphone but I am having trouble translating this data for librosa to use. Any suggestions on how this should be approached, or is it even possible?</p>
  
  <p>A few things I tried include receiving data from pyaudio mic, decode it into an array of floats and pass it to librosa (as from the docs, this is what librosa does with wav files with .load), but it doesn't work as it produces the following error:
  "librosa.util.exceptions.ParameterError: Audio buffer is not finite everywhere"</p>
  
  <pre class="lang-py prettyprint-override"><code>
  FORMAT = pyaudio.paInt16
  RATE = 44100
  CHUNK = 2048
  WIDTH = 2
  CHANNELS = 2
  RECORD_SECONDS = 5
  
  stream = audio.open(format=FORMAT,
                      channels = CHANNELS,
                      rate = RATE,
                      input=True,
                      output=True,
                      frames_per_buffer=CHUNK)
  while True:
          data = stream.read(CHUNK)
          data_float = np.fromstring(data , dtype=np.float16)
          data_np = np.array(data_float , dtype='d')
          # data in 1D array
          mfcc = librosa.feature.mfcc(data_np.flatten() , 44100)
          print(mfcc)
  
  </code></pre>