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AWS Community Day PH Initiative

When: September (tentative)
Where: To be announced
Pre-registration link: bit.ly/AWS2019

What is AWS Community Day?

AWS Community Days are community-organized cloud education events, featuring technical discussions and demos led by expert AWS users and industry leaders from around the world.

What to expect from AWS Community Day?

Renew, Revive & Revitalize to exemplify your excitement about the work you do

Python Singleton

Here is how to implement singletons in Python

Taken from: https://stackoverflow.com/questions/31875/is-there-a-simple-elegant-way-to-define-singletons

Transcribe audio file to text (speech-to-text) using Google Cloud Platform's Speech API

Convert audio to text using GCP Speech API

Requirements

pip install --upgrade google-cloud-speech

Export the GCP credential env and execute the request

#!/bin/bash

Transcribe audio file to text (speech-to-text) using IBM's Watson SpeechToText API

Convert audio to text using IBM Watson SpeechToText API.

API Reference: https://www.ibm.com/watson/developercloud/speech-to-text/api/v1/?curl#introduction

Each JSON result is stored on a separate file. Results are aggregated in a CSV file.

Generate waveform image from audio file using FFMPEG

This will generate waveform images (jpg) for all files inside media/audios and media/videos to a directory media/waveforms following the sufolder structure of media

Folder structure

Audio/video folder structure

|-- media
|   |-- audios
|   |-- videos

	def shell_exec(cmd, cb=None, poll=True):
	"""execute a shell command

	cmd=str command to execute

	cb=<callable> callable function

	poll=True whether to poll for updates"""
	with Popen(cmd, stdout=PIPE, bufsize=1) as p:
	if poll:

	from subprocess import Popen, PIPE

	def shell_exec(cmd, cb=None, poll=True):
	with Popen(cmd, stdout=PIPE, bufsize=1) as p:
	if poll:
	while p.poll() is None:
	line = p.stdout.readline().decode('utf-8').strip()
	if callable(cb): cb(line)
	time.sleep(0.5)

	ffmpeg -i AUDIOFILE.mp3 -c:a pcm_s16le AUDIOFILE_OUTPUT.wav

	# we can add:
	# -ac 1 to convert to mono
	# -ar 16000 to convert to 16000 sample rate

	# assuming we're inside "/a/b/c/d" directory
	if not os.path.exists('./x/y/z'):
	os.makedirs('./x/y/z')

	# this will create the folders "x", "y", and "z"
	"""
	.
	\|-- a
	\| `-- b
	\| `-- c