fnky

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

glasslion

"""
Convert YouTube subtitles(vtt) to human readable text.

Download only subtitles from YouTube with youtube-dl:
youtube-dl  --skip-download --convert-subs vtt <video_url>

Note that default subtitle format provided by YouTube is ass, which is hard
to process with simple regex. Luckily youtube-dl can convert ass to vtt, which
is easier to process.

dpboard

Building an 'Automatic Gain Control' with SoX

SoX is a great tool for converting and processing audio. As an engineer working at a radio station I find it especially useful for processing audio files so the volume is even and smooth throughout. A recent use case was preparing news bulletins recorded by a non-technical journalist so they sounded clear and loud for an Amazon Alexa skill.

What is an AGC?

Automatic Gain Control (AGC) is an audio processing technique that is designed to smooth out volume differences between different parts of an audio programme. The majority of radio stations will have a device at their transmitter (for example, an Optimod) that does just that. Parts of the broadcast that are two quiet are boosted and parts that are too loud are atenuated.

For those familiar with audio [compressors

rriemann

#!/usr/bin/env python3

# based on https://groups.google.com/d/msg/pandoc-discuss/RUC-tuu_qf0/h-H3RRVt1coJ

import pandocfilters as pf
import sys
import re

def latex(s):
    return pf.RawBlock('tex', s)

johnloy

Electron apps

• Marp: Markdown presentation ecosystem.

• muryoimpl/slippr: markdown presentation app by Electron

• joe-re/cafe-pitch Markdown-driven presentation tool built on Electron.

Slide deck frameworks supporting Markdown source

jeremyjaymes

    <meta name="description" content="{{ if .IsHome }}{{ .Site.Params.description }}{{ else }}{{ .Description }}{{ end }}"/>
    <meta name="robots" content="noodp"/>
    <link rel="canonical" href="{{ .Permalink }}" />

    <!-- Twitter Card -->
    <meta name="twitter:card" content="summary" />
    <meta name="twitter:description" content="{{ if .IsHome }}{{ .Site.Params.description }}{{ else }}{{ .Description }}{{ end }}" />
    <meta name="twitter:title" content="{{ .Title }}{{ if .IsHome }} - {{ .Site.Params.Tagline }}{{ else }} - {{ .Site.Title }}{{ end }}" />
    <meta name="twitter:site" content="{{ .Site.Params.twitter }}" />
    <meta name="twitter:creator" content="{{ .Site.Params.twitter }}" />

loretoparisi

# Output a single frame from the video into an image file:
ffmpeg -i input.mov -ss 00:00:14.435 -vframes 1 out.png

# Output one image every second, named out1.png, out2.png, out3.png, etc.
# The %01d dictates that the ordinal number of each output image will be formatted using 1 digits.
ffmpeg -i input.mov -vf fps=1 out%d.png

# Output one image every minute, named out001.jpg, out002.jpg, out003.jpg, etc. 
# The %02d dictates that the ordinal number of each output image will be formatted using 2 digits.
ffmpeg -i input.mov -vf fps=1/60 out%02d.jpg

tayvano

Originall From: Posted 2015-05-29 http://ubwg.net/b/full-list-of-ffmpeg-flags-and-options

This is the complete list that’s outputted by ffmpeg when running ffmpeg -h full.

usage: ffmpeg [options] [[infile options] -i infile]… {[outfile options] outfile}…

Getting help:
    -h — print basic options
    -h long — print more options
    -h full — print all options (including all format and codec specific options, very long)

riceissa

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.

In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit

gilbertw1

Macbook Arch Guide

• Installation
• General Setup
• System Time
• Display
• Keyboard
• Touchpad
• Sound
• Bluetooth