pyaudio not installing code example

Example 1: how to install pyaudio in python

pip install pipwin
then
pipwin install pyaudio

Example 2: pyaudio not installing ubuntu

sudo apt-get install portaudio19-dev python-pyaudio

Example 3: error while installing pyaudio

pip install pipwin
pipwin install pyaudio

Example 4: pyaudio not installing ubuntu

pip install PyAudio

Example 5: why pyaudio is not installing

"""
If you are having trouble installing PyAudio on your mechine, pyaudio
is a unofficial library, so you need to use pipwin to install and use
PyAudio and if you don't know anything about pipwin no problem you may 
watch this video: https://www.youtube.com/watch?v=-3am_5jMzJ4
"""

Example 6: pyaudio not installing

pipwin install pyaudio