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Female Voices

    $ say -v Agnes "hello world"
    $ say -v Kathy "hello world"
    $ say -v Princess "hello world"
    $ say -v Vicki "hello world"
    $ say -v Victoria "hello world"

Male Voices

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Each YouTube video has 4 generated images. They are predictably formatted as follows:

http://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg
http://img.youtube.com/vi/<insert-youtube-video-id-here>/1.jpg
http://img.youtube.com/vi/<insert-youtube-video-id-here>/2.jpg
http://img.youtube.com/vi/<insert-youtube-video-id-here>/3.jpg

The first one in the list is a full size image and others are thumbnail images. The default thumbnail image (ie. one of 1.jpg, 2.jpg, 3.jpg) is:

http://img.youtube.com/vi/<insert-youtube-video-id-here>/default.jpg

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youtube-dl will output in the current directory

To list available formats

youtube-dl --list-formats URL

To download an entire user/channel

youtube-dl -citw ytuser:<USER> or

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open-source/privacy-aware browsers:

• Firefox https://www.mozilla.org/en-US/firefox/products/
• Pale Moon https://www.palemoon.org/

firefox plug-ins

• Vimperator (vim-like keybindings for mouse-less browsing) http://vimperator.mozdev.org/
• NoScript (allow only certain scripts to run on websites) https://noscript.net/
• AdBlock Plus (ad blocker) https://adblockplus.org/
• LastPass (password keeper + generator) https://lastpass.com/

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ffmpeg

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

You can get the list of installed codecs with:

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Download Only Certain File Types Using wget -r -A

You can use this under following situations:

• Download all images from a website
• Download all videos from a website
• Download all PDF files from a website

$ wget -r -A.pdf http://url-to-webpage-with-pdfs/

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ColorSync Utility to shrink PDF with custom filters from Preview Quartz Filter

Create new filter in ColorSync, saved in:
/User/[username]/Library/Filters/
copy to
/Library/PDFServices

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Theory of Building Caffe on OS X

(with addendums, tangents, and other follies)

Introduction

I have followed Kyle McDonald's Theory of Building Caffe after what could be described as some careless brew updates and obliviousness to the conflicts between various versions of OS X, CUDA, CUDA drivers, CuDNN, and Caffe itself. I am replicating Kyle's steps here and adding a few more which were unique to my case and may not necessarily work for everyone. The goal is to run python -c "import caffe" without crashing.

Official Caffe OS X Installation Guide

http://caffe.berkeleyvision.org/install_osx.html

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layer_list = [
"conv1/7x7_s2",
"pool1/3x3_s2",
"pool1/norm1",
"conv2/3x3_reduce",
"conv2/3x3",
"conv2/norm2",
"pool2/3x3_s2",
"inception_3a/1x1",

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using rsync

$ rsync -avE --progress /source/ /destination

• -v --verbose
• -a --archive (preserve all attributes)
• -n --dry-run
• -E, --executability (preserve executability)
• --delete This tells rsync to delete extraneous files from the receiving side (files that aren't on the sending side), but only for the directories that are being synchronized.