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I'm writing a program to take voice input from the built in microphone and then print the received voice on screen. My program is as follows :

import speech_recognition as sr

r = sr.Recognizer()
with sr.Microphone() as source:
 print("Speak Anything :")
 audio = r.listen(source)
 try:
 text = r.recognize_google(audio)
 print("You said : ".format(text))
 except:
 print("Sorry could not recognize what you said")

but I'm getting the error as follows :

Traceback (most recent call last):
 File "text.py", line 4, in <module>
 with sr.Microphone() as source:
 File "/home/ashish/anaconda3/lib/python3.6/site-packages/speech_recognition/__init__.py", line 86, in __init__
 device_info = audio.get_device_info_by_index(device_index) if device_index is not None else audio.get_default_input_device_info()
 File "/home/ashish/anaconda3/lib/python3.6/site-packages/pyaudio.py", line 949, in get_default_input_device_info
 device_index = pa.get_default_input_device()
OSError: No Default Input Device Available

If you are using Raspberry Pi board, you’ll need a USB sound card (or USB microphone).

Once you do this, change all instances of Microphone() to Microphone(device_index=MICROPHONE_INDEX), where MICROPHONE_INDEX is the hardware-specific index of the microphone.

To hack on this library, first make sure you have all the requirements listed in the “Requirements” section.

-Most of the library code lives in speech_recognition/init.py.

• Examples live under the examples/ directory, and the demo script lives in speech_recognition/main.py.


• The FLAC encoder binaries are in the speech_recognition/ directory.


• Documentation can be found in the reference/ directory.

To run all the tests:

python -m unittest discover --verbose code here