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javier /
Created May 13, 2020 — forked from protrolium/
using ffmpeg to extract audio from video files


Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

javier /
Last active Sep 26, 2019
A tale of two streams workshop
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
javier / ExportingXGBoostfromSageMakertoScikit-learn.ipynb
Created Sep 12, 2019
Exporting XGboost models from Amazon SageMaker to scikit-learn
View ExportingXGBoostfromSageMakertoScikit-learn.ipynb
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javier /
Created May 31, 2019 — forked from jakechen/
Using opencv to parse frames for Amazon Rekognition to analyze. This example uses Rekognition's celebrity recognition feature as an example.
# With help from
frame_skip = 100 # analyze every 100 frames to cut down on Rekognition API calls
import boto3
import cv2
from PIL import Image
import io
rekog = boto3.client('rekognition')
javier /
Last active Apr 19, 2018
Pub Sub Quick demo for pulling
sudo pip install --upgrade google-cloud-pubsub
gcloud pubsub topics create cp300
gcloud pubsub subscriptions create cpsubs --topic=cp300
#that's it.. now just copy the contents of the python file
javier /
Last active Nov 3, 2017
Messages from pidgin using dbus for reading messages and Tkinter for showing them on a desktop window
#!/usr/bin/env python
# to debug dbus, try dbus-monitor "type='signal',sender='im.pidgin.purple.PurpleService',interface='im.pidgin.purple.PurpleInterface',member='ReceivedImMsg'"
import tkinter as tk
import tkinter.scrolledtext as tkst
from pydbus import SessionBus
from gi.repository import GObject
from gi.repository import GLib
javier / countries.rb
Last active Jul 26, 2016
seed to load country codes and names
View countries.rb
#put this file on your locales directory where you have your yaml files
{ :es => {
:countries => {
:AC => "Isla de la Ascensión",
:AD => "Andorra",
:AE => "Emiratos Árabes Unidos",
:AF => "Afganistán",
:AG => "Antigua y Barbuda",
javier / 000_audio_may.json
Last active Mar 14, 2017
Cloud Speech API and Natural Language JSON from teowaki's blog post
View 000_audio_may.json
"config": {
"sample_rate": 16000,
"languageCode": "en-GB"
"audio": {
from google.appengine.ext import vendor
import json
import os
import webapp2
#from oauth2client.contrib.appengine import AppAssertionCredentials
from httplib2 import Http
View uber.raml
#%RAML 0.8
title: Uber
version: v1
baseUri: https://{apiMode}{version}
description: In order to use the Sandbox environment set 'sandbox-api'. Otherwise set 'api'.
enum: [ sandbox-api, api ]
- oauth_2_0: !include securitySchemes/oauth_2_0.raml
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